All Stories

  1. Structural, optical, and photoelectrical properties of TiPcCl2/n-Si heterojunctions for optoelectronic applications

    Article • Physica B Condensed Matter, June 2025, Elsevier

    Ahmed Darwish

  2. Optical spectroscopy reveals the facile creation of a cut-off laser power attenuation utilizing nanocrystalline Octaethyl-21H,23H-porphine nickel (II) films

    Article • Optics & Laser Technology, May 2025, Elsevier

    Ahmed Darwish

  3. Enhanced performance of monocrystalline silicon solar cells using sol-gel synthesized zinc stannate anti-reflective coating via electro-spraying technique

    Article • Ceramics International, March 2025, Elsevier

    Ahmed Darwish

  4. Unveiling the topological structure and optical properties of Ge2N2O and Sn2N2O: DFT, Hirshfeld topological surfaces, and their role in advanced materials

    Article • Physica B Condensed Matter, February 2025, Elsevier

    Ahmed Darwish

  5. Thermal annealing effects on optical and dielectric properties of TiOPc thin films for optoelectronic and photonic applications

    Article • Physica Scripta, January 2025, Institute of Physics Publishing

    Ahmed Darwish

  6. Facile green synthesis of silver doped NiO nanoparticles using aloe vera latex for efficient energy storage and photocatalytic applications

    Article • Heliyon, January 2025, Elsevier

    Ahmed Darwish

  7. Efficient Photocatalytic Degradation of Methylene Blue and Methyl Orange Using Calcium-Polyoxometalate Under Ultraviolet Irradiation

    Article • Processes, December 2024, MDPI AG

    Ahmed Darwish

  8. Enhancing the optical and photoelectric efficiency of PEDOT/PSS thin film by incorporating activated biochar for photovoltaic applications

    Article • Journal of Asian Ceramic Societies, November 2024, Taylor & Francis

    Ahmed Darwish

  9. Synergistic Enhancements of Zn-ZIF with Nano Zinc Oxide for Hydrogen adsorption, energy storage, and photocatalytic technologies

    Article • Ceramics International, November 2024, Elsevier

    Ahmed Darwish

  10. Impact of gamma irradiation on optical and nonlinear properties of Indium chloride phthalocyanine thin films

    Article • Physica Scripta, October 2024, Institute of Physics Publishing

    Ahmed Darwish

  11. Physical characteristics, dielectric properties and electrical conductivity of erythrosine B/PVA polymeric composite films: effect of erythrosine B concentration

    Article • Opto-electronics, October 2024, Springer Science + Business Media

    Ahmed Darwish

  12. Structural, optical spectroscopic, and density functional theory calculations of squaraine dye for organic electronic applications

    Article • Physica Scripta, September 2024, Institute of Physics Publishing

    Ahmed Darwish

  13. Exploring the AC conductivity and dielectric properties of PVA films doped with Erythrosin B

    Article • Physica Scripta, July 2024, Institute of Physics Publishing

    Ahmed Darwish

  14. Facile fabrication and tunable electronic properties of Azure A chloride/Si heterojunction for photoelectrical application

    Article • Physica B Condensed Matter, July 2024, Elsevier

    Ahmed Darwish

  15. Spectroscopic and electronic investigations on tin(II) 2,3-naphthalocyanine/p-Si heterojunction for optoelectronic applications

    Article • Physica Scripta, April 2024, Institute of Physics Publishing

    Ahmed Darwish

  16. Synthesis of novel Cu/Fe based benzene Dicarboxylate (BDC) metal organic frameworks and investigations into their optical and electrochemical properties

    Article • Heliyon, February 2024, Elsevier

    Ahmed Darwish

  17. CuO nanoparticles mixed with activated BC extracted from algae as promising material for supercapacitor electrodes

    Article • Scientific Reports, December 2023, Springer Science + Business Media

    Ahmed Darwish

  18. Synthesis, characterization, optical, and sensing investigations for Fe-BDC doped with 10 wt.% of activated food waste biochar

    Article • Journal of Asian Ceramic Societies, November 2023, Taylor & Francis

    Ahmed Darwish

  19. Boron sub-phthalocyanine chloride deposited on PA substrate towards flexible optoelectronic devices: Structural, optical, and electrical characterization

    Article • Physica B Condensed Matter, November 2023, Elsevier

    Ahmed Darwish

  20. Biosynthesis of carbon quantum dot nanocomposite as an advanced material for simultaneous electrochemical sensing of D-glucose and paracetamol

    Article • Applied Physics A, October 2023, Springer Science + Business Media

    Ahmed Darwish

  21. Preparation and optoelectronic performance of 2,7,12,17-tetra-tert-butyl-5,10,15,20-tetraaza-21H,23H-porphine-CuS films for photovoltaic applications

    Article • Dyes and Pigments, October 2023, Elsevier

    Ahmed Darwish

  22. Temperature dependency of electronic and optoelectronic performance of 2,4-Bis[4-(N,N-dibenzylamino)-2,6-dihydroxyphenyl]squaraine/n-Si organic/inorganic heterojunction for photovoltaic application

    Article • Physica B Condensed Matter, October 2023, Elsevier

    Ahmed Darwish

  23. Investigating the optoelectronic properties of NiOEP/n-Si heterojunctions for solar cell applications

    Article • Physica Scripta, September 2023, Institute of Physics Publishing

    Ahmed Darwish

  24. Zinc-bis-8-hydroxyquinoline doped by biochar extracted from red sea algae Chlorophyta as a novel photoactive layer in heterojunction solar cells

    Article • Alexandria Engineering Journal, September 2023, Elsevier

    Ahmed Darwish

  25. Annealing effect on the morphology, linear and non-linear optical properties of squaraine derivative thin films for optoelectronics applications

    Article • Optical Materials, August 2023, Elsevier

    Ahmed Darwish

  26. The effect of human serum albumin on ZIF-8 used in drug delivery: structural, linear and nonlinear optical properties

    Article • Journal of Umm Al-Qura University for Applied Sciences, July 2023, Springer Science + Business Media

    Ahmed Darwish

  27. Design and development of multi-functional graphitic carbon nitride heterostructures embedded with copper and iron oxide nanoparticles as versatile sensing platforms for environmental and agricultural applications

    Article • Ceramics International, June 2023, Elsevier

    Ahmed Darwish

  28. Morphology, structural properties, impedance spectroscopy, AC conductivity, and dielectric relaxation properties of boron subphthalocyanine chloride amorphous films

    Article • Physica Scripta, May 2023, Institute of Physics Publishing

    Ahmed Darwish

  29. High-efficient photocatalytic degradation of industrial dyes (MB, RhD, and MB/RhD) using Zn100−xSmxO nanoparticles

    Article • Physica Scripta, May 2023, Institute of Physics Publishing

    Ahmed Darwish

  30. Biological synthesis of novel carbon quantum dots using Halimeda opuntia green algae with improved optical properties and electrochemical performance for possible energy storage applications

    Article • International Journal of Electrochemical Science, May 2023, Elsevier

    Ahmed Darwish

  31. Effect of film thickness on structural, electrical and optical properties of amorphous boron subphthalocyanine chloride thin film

    Article • Optical Materials, April 2023, Elsevier

    Ahmed Darwish

  32. Synthesis, the structural and thermal stability of LiCo1 − xFexPO4

    Article • Journal of Thermal Analysis and Calorimetry, March 2023, Springer Science + Business Media

    Ahmed Darwish

  33. Fabrication and Description of Amorphous Ge33Se47Sn20 Films for Optical Applications

    Article • Journal of Electronic Materials, March 2023, Springer Science + Business Media

    Ahmed Darwish

  34. Synchrotron-based operando X-ray diffraction and X-ray absorption spectroscopy study of LiCo0.5Fe0.5PO4 mixed d-metal olivine cathode

    Article • Scientific Reports, February 2023, Springer Science + Business Media

    Ahmed Darwish

  35. Structural characterizations and photoelectric performance of non-crystalline boron subphthalocyanine chloride films/FTO for photodiode applications

    Article • Journal of Non-Crystalline Solids, February 2023, Elsevier

    Ahmed Darwish

  36. Effect of Mil-88a metal-organic framework coating on the electrochemical properties of LiCoPO4

    Article • Ceramics International, January 2023, Elsevier

    Ahmed Darwish

  37. Structural, Morphological, and Optical Analysis of La-Doped NiO Films Fabricated by the Sol-Gel Spin-Coating Technique for Solid-State Electronics

    Article • Journal of Surface Investigation X-ray Synchrotron and Neutron Techniques, December 2022, Pleiades Publishing Ltd

    Ahmed Darwish

  38. Green synthesis and characterization of zinc oxide nanoparticles using Camellia sinensis tea leaf extract and their antioxidant, anti-bactericidal and anticancer efficacy

    Article • Research on Chemical Intermediates, October 2022, Springer Science + Business Media

    Ahmed Darwish

  39. Optical characterizations of synthetic nano PcGaCl thin film. In vitro, hemocompatibility, cytotoxicity, and PDT valuation

    Article • Digest Journal of Nanomaterials and Biostructures, September 2022, Virtual Company of Physics

    Ahmed Darwish

  40. Nanostructured films of Safranin-T on p-Si as a heterostructure for photovoltaic applications: Electronic and optoelectronic studies

    Article • Physica B Condensed Matter, August 2022, Elsevier

    Ahmed Darwish

  41. Structural, electronic, and optoelectronic characteristics of GaClPc/n-Si heterojunction for photodiode device

    Article • Materials Science in Semiconductor Processing, August 2022, Elsevier

    Ahmed Darwish

  42. Synthesis of g-C3N4/CuO Nanocomposite as a Supercapacitor with Improved Electrochemical Performance for Energy Storage applications

    Article • International Journal of Electrochemical Science, August 2022, Elsevier

    Ahmed Darwish

  43. Impedance spectroscopy, electronic transport, and dielectric relaxation studies in methylene green organic semiconductor for photovoltaic application

    Article • Physica Scripta, July 2022, Institute of Physics Publishing

    Ahmed Darwish

  44. Electrical and photoelectrical properties of a vacuum-deposited MnClPc/n-Si heterojunction for photodiode application

    Article • Micro and Nanostructures, July 2022, Elsevier

    Ahmed Darwish

  45. Preparation of TlInSe2 thin films using substrate temperature: Characterization, optical and electrical properties

    Article • Optical Materials, July 2022, Elsevier

    Ahmed Darwish

  46. Structural analysis, dielectric relaxation, and AC electrical conductivity in TlInSe2 thin films as a function of temperature and frequency

    Article • Applied Physics A, June 2022, Springer Science + Business Media

    Ahmed Darwish

  47. Preparation and characterizations of Erbium(III)-Tris(8-hydroxyquinolinato) nanostructured films for possible use in gas sensor

    Article • Sensors and Actuators A Physical, June 2022, Elsevier

    Ahmed Darwish

  48. Effectiveness of Annealing on the Structural, Electrical, and Optical Properties of Erbium(III)-tris(8-hydroxyquinolinato) Films for Possible Use in OLEDs

    Article • Journal of Inorganic and Organometallic Polymers and Materials, May 2022, Springer Science + Business Media

    Ahmed Darwish

  49. Graphitic Carbon Nitride Decorated with Iron Oxide Nanoparticles as a Novel High-Performance Biomimetic Electrochemical Sensing Platform for Paracetamol Detection

    Article • Journal of Inorganic and Organometallic Polymers and Materials, May 2022, Springer Science + Business Media

    Ahmed Darwish

  50. Tailoring the structural, electrical, and optical features of Erbium(III)-Tris(8-hydroxyquinolinato) nanostructured films for optical applications: effect of film thickness

    Article • Journal of Materials Science Materials in Electronics, March 2022, Springer Science + Business Media

    Ahmed Darwish

  51. Post treated PEDOT-PSS films with excellent conductivity and optical properties as multifunctional flexible electrodes for possible optoelectronic and energy storage applications

    Article • Optical Materials, March 2022, Elsevier

    Ahmed Darwish

  52. Flexible, stretchable and electrically conductive PDMS decorated with polypyrrole/manganese-iron oxide nanocomposite as a multifunctional material for high performance EMI shielding applications

    Article • Synthetic Metals, January 2022, Elsevier

    Ahmed Darwish

  53. Studying the surface morphology, linear and nonlinear optical properties of manganese (III) phthalocyanine chloride/FTO films

    Article • Physica B Condensed Matter, December 2021, Elsevier

    Ahmed Darwish

  54. Facile deposition of non-crystalline films of indium (III) phthalocyanine chloride for flexible electronic applications

    Article • Journal of Non-Crystalline Solids, November 2021, Elsevier

    Ahmed Darwish

  55. High Performance Organic Coatings of Polypyrrole Embedded with Manganese Iron Oxide Nanoparticles for Corrosion Protection of Conductive Copper Surface

    Article • Journal of Inorganic and Organometallic Polymers and Materials, October 2021, Springer Science + Business Media

    Ahmed Darwish

  56. Nanostructure film of Ch-diisoQ/Si for the enhancement of photoelectrical performance of organic/inorganic cells

    Article • Physica B Condensed Matter, October 2021, Elsevier

    Ahmed Darwish

  57. Tailoring the structural and optical features of PtCl4@ PVA polymeric composite films for optical applications

    Article • Optical Materials, October 2021, Elsevier

    Ahmed Darwish

  58. Preparation, Raman spectroscopy, surface morphology and optical properties of TiPcCl2 nanostructured films: thickness effect

    Article • Opto-electronics, August 2021, Springer Science + Business Media

    Ahmed Darwish

  59. A study on the dielectric non-Debye relaxation and ac and dc conductivity characteristics in nanostructured film of 2,7,12,17-tetra-tert-butyl-5,10,15,20-tetraaza-21H,23H-porphyrin

    Article • The European Physical Journal Plus, August 2021, Springer Science + Business Media

    Ahmed Darwish

  60. Electronic and photovoltage performance of TTBTP/n-Si heterojunctions for possible use in solar cell

    Article • Materials Science in Semiconductor Processing, August 2021, Elsevier

    Ahmed Darwish

  61. Structural characterization and optical properties of nanostructured indium (III) phthalocyanine chloride/FTO thin films for photoelectric applications

    Article • Optik, August 2021, Elsevier

    Ahmed Darwish

  62. Enhancement of the adsorptive performance of TiO2 nanoparticles towards methylene blue by adding suspended nanoparticles of Pt: kinetics, isotherm, and thermodynamic studies

    Article • Nanotechnology, July 2021, Institute of Physics Publishing

    Ahmed Darwish

  63. Wastewater Purification from Permanganate Ions by Sorption on the Ocimum basilicum Leaves Powder Modified by Zinc Chloride

    Article • Journal of Chemistry, July 2021, Hindawi Publishing Corporation

    Ahmed Darwish

  64. Thickness film effect on charge transport in nanostructure indeno[1, 2-b]fluorene-6,12 dione

    Article • Synthetic Metals, June 2021, Elsevier

    Ahmed Darwish

  65. Phase, AC conductivity and dielectric properties of Indeno[1,2-b]flourene-6,12 dione thin film as a function of frequency and temperature

    Article • Physica Scripta, May 2021, Institute of Physics Publishing

    Ahmed Darwish

  66. Methylene Blue sorption by the chemically modified Ocimum basilicum leaves powder

    Article • Desalination and Water Treatment, May 2021, Elsevier

    Ahmed Darwish

  67. Rhodamine-6G organic films for optical limits: structural analysis, surface morphology, linear and nonlinear optical characteristics

    Article • The European Physical Journal Plus, April 2021, Springer Science + Business Media

    Ahmed Darwish

  68. Linear and nonlinear optical characteristics of manganese phthalocyanine chloride/polyacetate sheet: Towards flexible optoelectronic devices

    Article • Optical Materials, April 2021, Elsevier

    Ahmed Darwish

  69. Structural analytical and electrical conduction mechanisms of 2,7,12,17-tetra-tert-butyl-5,10,15,20-tetraaza-21H,23H-porphine nanostructure films

    Article • Journal of Materials Science Materials in Electronics, March 2021, Springer Science + Business Media

    Ahmed Darwish

  70. Corrigendum to “Deposition of rhodamine B dye on flexible substrates for flexible organic electronic and optoelectronic: Optical spectroscopy by Kramers-Kroniganalysis” [Opt. Mater. 95 (2019) 109219]

    Article • Optical Materials, March 2021, Elsevier

    Ahmed Darwish

  71. Preparation, characterization, and optical properties of nanosized Al(III) 3-azo-phenolate salicylic acid thin film for potential application in nonlinear optical crystal

    Article • Physica Scripta, February 2021, Institute of Physics Publishing

    Ahmed Darwish

  72. A potentially low-cost adsorbent for methylene blue removal from synthetic wastewater

    Article • Desalination and Water Treatment, February 2021, Elsevier

    Ahmed Darwish

  73. A potentially low-cost adsorbent for methylene blue removal from synthetic wastewater

    Article • Desalination and Water Treatment, February 2021, Elsevier

    Ahmed Darwish

  74. Effect of thickness on structural and optical characteristics of Indium Phthalocyanine Chloride thin films for photodiode devices

    Article • Journal of Materials Science Materials in Electronics, January 2021, Springer Science + Business Media

    Ahmed Darwish

  75. Enhance the adsorption behavior of methylene blue from wastewater by using ZnCl2 modified neem (Azadirachta indica) leaves powder

    Article • Desalination and Water Treatment, January 2021, Elsevier

    Ahmed Darwish

  76. Thermally evaporated of homogeneous nanostructured gallium-phthalocyanine-chloride films: Optical spectroscopy

    Article • Optical Materials, November 2020, Elsevier

    Ahmed Darwish

  77. Influence of ultraviolet irradiation on physical properties of nano-NiO films for optical applications

    Article • Applied Physics A, October 2020, Springer Science + Business Media

    Ahmed Darwish

  78. Noncrystalline films of gallium (III) phthalocyanine chloride evaporated on a flexible polymer substrate for flexible organic technology: optical spectroscopy and optical limiting

    Article • Physica Scripta, October 2020, Institute of Physics Publishing

    Ahmed Darwish

  79. Influence of film thickness on structural and optical properties of 2,7,12,17-tetra-tert-butyl-5,10,15,20-tetraaza-21H,23H-porphine nanostructure thin films for optical applications

    Article • Journal of Molecular Structure, October 2020, Elsevier

    Ahmed Darwish

  80. Studies of the morphology and optical properties of nano erbium oxide embedded in PMMA matrix

    Article • Optics & Laser Technology, September 2020, Elsevier

    Ahmed Darwish

  81. Synthesis, characterization and optical properties of nanosized lanthanum (III) complexes thin film with aryl-azo-pyrogallol derivatives

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, September 2020, Elsevier

    Ahmed Darwish

  82. Thin films of nanostructured gallium (III) chloride phthalocyanine deposited on FTO: Structural characterization, optical properties, and laser optical limiting

    Article • Physica B Condensed Matter, September 2020, Elsevier

    Ahmed Darwish

  83. Formation of flexible nano-organic films of 2,7,12,17-tetra-tert-butyl-5,10,15,20-tetraaza-21H,23H-porphine for promising optoelectronic applications

    Article • Optical Materials, July 2020, Elsevier

    Ahmed Darwish

  84. Electronic and optoelectronic performance of nano-Vanadyl 2,3-naphthalocyanine/n-Si (organic/inorganic) solar cells: Temperature dependence

    Article • Thin Solid Films, June 2020, Elsevier

    Ahmed Darwish

  85. Exponential trap distributions of carriers in noncrystalline films of P1-2xNa1-2xO3-4xPbx (x = 0, 0.15 and 0.3) for electronic applications

    Article • Applied Physics A, April 2020, Springer Science + Business Media

    Ahmed Darwish

  86. Potential antitumor activity of exopolysaccharide produced from date seed powder as a carbon source for Bacillus subtilis

    Article • Journal of Microbiological Methods, March 2020, Elsevier

    Dr Khalid Rehman Hakeem, Ahmed Darwish

  87. Nanostructured dye films of 4-tricyanovinyl-N,N-diethylaniline (TCVA) for optoelectronic applications: microstructure change and electrical conductivity improvement under UV irradiated effect

    Article • Physica Scripta, February 2020, Institute of Physics Publishing

    Ahmed Darwish

  88. Improvement of mechanical properties and radiation shielding performance of AlBiBO3 glasses using yttria: An experimental investigation

    Article • Ceramics International, February 2020, Elsevier

    Ahmed Darwish

  89. Optical linearity and bandgap analysis of Erythrosine B doped in polyvinyl alcohol films

    Article • Optical Materials, February 2020, Elsevier

    Ahmed Darwish

  90. Structural characterization and optical properties of zeolitic imidazolate frameworks (ZIF-8) for solid-state electronics applications

    Article • Optical Materials, February 2020, Elsevier

    Ahmed Darwish

  91. Electronic properties and photovoltaic performance of VONc-ZnO hybrid junction solar cells

    Article • Synthetic Metals, January 2020, Elsevier

    Ahmed Darwish

  92. Morphological and optical properties of thin film metal oxide based phosphate glasses for optoelectronic technology

    Article • Optical Materials, January 2020, Elsevier

    Ahmed Darwish

  93. Dielectric Properties and AC Conductivity of Organic Films of Copper(II) 2,9,16,23-Tetra-tert-butyl-29H,31H- phthalocyanine

    Article • Journal of Electronic Materials, December 2019, Springer Science + Business Media

    Ahmed Darwish

  94. Electrical conductivity and dielectric properties of CuO–Cu4(OH)6SO4 mixtures nanoparticles

    Article • Physica B Condensed Matter, December 2019, Elsevier

    Ahmed Darwish

  95. High electrical conductivity of (1-x)NiO/xFe2O3(x = 0.0, 0.3, 0.5, 0.7 and 1) nanoparticles for solid-state electronics

    Article • Journal of Magnetism and Magnetic Materials, December 2019, Elsevier

    Ahmed Darwish

  96. Radiation protection parameters of glasses with different yttria additives at different photon energies

    Article • Materials Research Express, November 2019, Institute of Physics Publishing

    Ahmed Darwish

  97. Removal of methylene blue from synthetic wastewater by the selected metallic oxides nanoparticles adsorbent: equilibrium, kinetic and thermodynamic studies

    Article • Chemical Engineering Communications, October 2019, Taylor & Francis

    Ahmed Darwish

  98. Formation of noncrystalline GeSeSn/c-Si heterojunction: Electronic and optoelectronic studies

    Article • Physica B Condensed Matter, October 2019, Elsevier

    Ahmed Darwish

  99. Methylsilicon phthalocyanine hydroxide doped PVA films for optoelectronic applications: FTIR spectroscopy, electrical conductivity, linear and nonlinear optical studies

    Article • Physica B Condensed Matter, October 2019, Elsevier

    Ahmed Darwish

  100. Deposition of Rhodamine B dye on flexible substrates for flexible organic electronic and optoelectronic: Optical spectroscopy by Kramers-Kronig analysis

    Article • Optical Materials, September 2019, Elsevier

    Ahmed Darwish

  101. Film thickness effects on nanorods organic films of azo quinoline derivatives for optical applications

    Article • Progress in Natural Science Materials International, August 2019, Elsevier

    Ahmed Darwish

  102. The effect of planar atomic configuration in the enhancement of AC conductivity and dielectric characterization of bisbenzimidazo[2,1-a:2′,1′-a′]anthra[2,1,9-def:6,5,10-d′e′f′]diisoquinoline-10,21-dione7 (BI-diisoQ) thin film

    Article • Journal of Materials Science Materials in Electronics, June 2019, Springer Science + Business Media

    Ahmed Darwish

  103. Quantum Confinement Observation of Milled Potassium Chloride

    Article • NANO, June 2019, World Scientific Pub Co Pte Lt

    Ahmed Darwish

  104. Structural, optical and dielectric properties of n-type organic N,N′-dimethyl-3,4,9,10-perylenedicarboximide thin films: effects of annealing

    Article • Materials Research Express, May 2019, Institute of Physics Publishing

    Ahmed Darwish

  105. Heterostructure of GeSe2−xSnx/n-Si solar cells: electronic properties and improvement of photoelectrical performance

    Article • Applied Physics A, May 2019, Springer Science + Business Media

    Ahmed Darwish

  106. Investigation of structural and electrical properties of 2,9-Bis [2-(4-2chlorophenyl)ethyl] anthrax [2,1,9-def:6,5,10-d′e′f'] diisoquinoline-1,3,8,10 (2H,9H) tetrone (Ch-diisoQ) nanostructured films for photoelectronic applications

    Article • Physica B Condensed Matter, April 2019, Elsevier

    Ahmed Darwish

  107. The promotion of Indeno [1, 2-b] flourene-6, 12 dione thin film to be changed into stable aromatic compound under the effect of annealing treatment

    Article • Vacuum, April 2019, Elsevier

    Ahmed Darwish

  108. Structural, surface topography and optical investigations of nanostructure films of copper(II) 2,9,16,23-teter-tert-butyl-29H,31H-phthalocyanine controlled at thermal effect

    Article • Applied Physics A, March 2019, Springer Science + Business Media

    Ahmed Darwish

  109. High performance efficiency of water purification using Cr2O3 nanoparticles synthesized by thermal combustion technique

    Article • Materials Research Express, March 2019, Institute of Physics Publishing

    Ahmed Darwish

  110. STRUCTURAL, OPTICAL, ELECTRICAL AND DIELECTRIC PROPERTIES OF PVA-YCl3 FILMS

    Article • Surface Review and Letters, February 2019, World Scientific Pub Co Pte Lt

    Ahmed Darwish

  111. Production of antioxidant exopolysaccharide from Pseudomonas aeruginosa utilizing heavy oil as a solo carbon source

    Article • Pharmacognosy Research, January 2019, EManuscript Services

    Dr Khalid Rehman Hakeem, Ahmed Darwish

  112. Methyl orange adsorption comparison on nanoparticles: Isotherm, kinetics, and thermodynamic studies

    Article • Dyes and Pigments, January 2019, Elsevier

    Ahmed Darwish

  113. Effect of Gamma Radiation Induced on Structural, Electrical, and Optical Properties of N, N′-Dimethyl-3,4,9, 10-Perylenedicarboximide Nanostructure Films

    Article • Journal of Electronic Materials, October 2018, Springer Science + Business Media

    Ahmed Darwish

  114. Gamma radiation effect on physical properties of 2,9-Bis [2-(4-chlorophenyl)ethyl] anthrax [2,1,9-def:6,5,10-d′e′f′] diisoquinoline-1,3,8,10 (2H,9H) tetrone films

    Article • Optik, October 2018, Elsevier

    Ahmed Darwish

  115. Enhancement of microstructure and electrical conductivity of N, N′-dimethyl-3,4,9,10-perylenedicarboximide nanostructured films by thermal annealing for photoelectronic applications

    Article • Synthetic Metals, August 2018, Elsevier

    Ahmed Darwish

  116. Variation in the structure and optical properties of gamma-irradiated Vanadyl 2,3-naphthalocyanine (VONc) nanostructure films

    Article • Radiation Physics and Chemistry, July 2018, Elsevier

    Ahmed Darwish

  117. Structural investigations and mobility enhanced of Vanadyl 2,3-naphthalocyanine (VONc) nanostructured films under thermal effect

    Article • Applied Physics A, May 2018, Springer Science + Business Media

    Ahmed Darwish

  118. Formation of Ge 35 In 8 S 57 amorphous films for optical applications

    Article • Chinese Journal of Physics, February 2018, Elsevier

    Ahmed Darwish

  119. Optical and electrical behaviors in NiO/xFe2O3 nanoparticles synthesized by microwave irradiation method

    Article • Optical Materials, January 2018, Elsevier

    Ahmed Darwish

  120. Blue shift of band gap for vanadyl-naphthalocyanine (VONc) thin films monitored at thermal effect

    Article • Materials Research Express, December 2017, Institute of Physics Publishing

    Ahmed Darwish

  121. Effect of X-ray irradiation on the optical properties of nanostructured thin films TCVA based on structural analysis

    Article • Opto-electronics, November 2017, Springer Science + Business Media

    Ahmed Darwish

  122. AC electrical conductivity and dielectric relaxation studies on n-type organic thin films of N , N ′-Dimethyl-3,4,9,10-perylenedicarboximide (DMPDC)

    Article • Physica B Condensed Matter, November 2017, Elsevier

    Ahmed Darwish

  123. Dependence of Optical Properties of Safranin-T Films on Post-deposition Annealing Temperature

    Article • Journal of Electronic Materials, September 2017, Springer Science + Business Media

    Ahmed Darwish

  124. The evolution of gamma-rays sensing properties of pure and doped phthalocyanine

    Article • Progress in Nuclear Energy, September 2017, Elsevier

    Ahmed Darwish

  125. Fabrication and characterization of anthracene thin films for wide-scale organic optoelectronic applications based on linear/nonlinear analyzed optical dispersion parameters

    Article • Optical Materials, August 2017, Elsevier

    Ahmed Darwish

  126. Impact of film thickness on optical and electrical transport properties of noncrystalline GeSe 1.4 Sn 0.6 films

    Article • Journal of Non-Crystalline Solids, August 2017, Elsevier

    Ahmed Darwish

  127. Investigation of composition effect on electrical properties of noncrystalline GeSe 2−x Sn x (0 ≤  x  ≤ 0.8) thin films

    Article • Journal of Alloys and Compounds, July 2017, Elsevier

    Ahmed Darwish

  128. On annealing induced effect in optical properties of amorphous GeSeSn chalcogenide films for optoelectronic applications

    Article • Journal of Alloys and Compounds, July 2017, Elsevier

    Ahmed Darwish

  129. Dielectric relaxation process and AC conductivity of 2,9-Bis [2-(4-chlorophenyl)ethyl] anthrax [2,1,9-def:6,5,10-d′e′f′] diisoquinoline-1,3,8,10 (2H,9H) tetron (Ch-diisoQ) thin films

    Article • Journal of Materials Science Materials in Electronics, June 2017, Springer Science + Business Media

    Ahmed Darwish

  130. Thermal annealing effect on structural and optical properties of 2,9-Bis [2-(4-chlorophenyl)ethyl] anthrax [2,1,9-def:6,5,10-d′e′f′] diisoquinoline-1,3,8,10 (2H,9H) tetrone (Ch-diisoQ) thin films

    Article • Opto-electronics, June 2017, Springer Science + Business Media

    Ahmed Darwish

  131. Linear and nonlinear optical properties of GeSe 2-x Sn x (0 ≤  x  ≤ 0.8) thin films for optoelectronic applications

    Article • Journal of Alloys and Compounds, June 2017, Elsevier

    Ahmed Darwish

  132. Effect of annealing on structural, electrical and optical properties of p -quaterphenyl thin films

    Article • Infrared Physics & Technology, May 2017, Elsevier

    Ahmed Darwish

  133. Effect of ErCl3 in gamma and neutron parameters for different concentration of ErCl3-SiO2 (EDFA) for the signal protection from nuclear radiation

    Article • Journal of Alloys and Compounds, March 2017, Elsevier

    Ahmed Darwish

  134. Photovoltaic performance of TCVA-InSe hybrid solar cells based on nanostructure films

    Article • Solar Energy Materials and Solar Cells, February 2017, Elsevier

    Ahmed Darwish

  135. Dielectric Relaxation Behavior and AC Electrical Conductivity Study of 2-(1,2-Dihydro-7-Methyl-2-Oxoquinoline-5-yl) Malononitrile (DMOQMN)

    Article • Journal of Electronic Materials, November 2016, Springer Science + Business Media

    Ahmed Darwish

  136. Influence of Film Thickness and Annealing Temperature on Optical Properties of Nanostructured-TiO2 Thin Films Prepared by Sol–Gel Spin Coating Technique

    Article • International Journal of Nanoscience, September 2016, World Scientific Pub Co Pte Lt

    Ahmed Darwish

  137. Influence of thickness and annealing on linear and nonlinear optical properties of manganese (III) chloride tetraphenyl porphine (MnTPPCl) organic thin films

    Article • Infrared Physics & Technology, September 2016, Elsevier

    Ahmed Darwish

  138. Impact of annealing on the structural and optical properties of methylene green nanostructure films prepared by drop casting

    Article • Optics & Laser Technology, May 2016, Elsevier

    Ahmed Darwish

  139. Effect of gamma irradiation on structural, electrical and optical properties of nanostructure thin films of nickel phthalocyanine

    Article • Synthetic Metals, May 2016, Elsevier

    Ahmed Darwish

  140. Dark electrical properties and photovoltaic performance of organic/inorganic (SnPcCl2/p-Si) solar cells

    Article • Journal of Materials Science Materials in Electronics, April 2016, Springer Science + Business Media

    Ahmed Darwish

  141. AC Conductivity and Dielectric Relaxation Behavior of Sb2S3 Bulk Material

    Article • Journal of Electronic Materials, April 2016, Springer Science + Business Media

    Ahmed Darwish

  142. Vertebrae segmentation techniques for spinal medical images

    Article • December 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Prof. Hala M. Ebied, Ahmed Darwish

  143. Optoelectronic performance and artificial neural networks (ANNs) modeling of n-InSe/p-Si solar cell

    Article • Superlattices and Microstructures, July 2015, Elsevier

    Ahmed Darwish

  144. On the nature of bulk electrical relaxation in 4‑tricyanovinyl-N,N-diethylaniline (TCVA)

    Article • Synthetic Metals, January 2015, Elsevier

    Ahmed Darwish

  145. Electrical and photovoltaic properties of SnSe/Si heterojunction

    Article • Materials Science in Semiconductor Processing, September 2014, Elsevier

    Ahmed Darwish

  146. Dielectric and electrical conductivity studies of bulk lead (II) oxide (PbO)

    Article • Journal of Alloys and Compounds, March 2014, Elsevier

    Ahmed Darwish

  147. AC electrical conductivity and dielectric studies on evaporated nanostructured InSe thin films

    Article • Journal of Alloys and Compounds, February 2014, Elsevier

    Ahmed Darwish

  148. Photoinduced effect in nanostructured InSe thin films for Photonic applications

    Article • Optics Communications, January 2014, Elsevier

    Ahmed Darwish

  149. Gamma irradiation effect on the structural and optical properties of nanostructured InSe thin films

    Article • Journal of Non-Crystalline Solids, December 2013, Elsevier

    Ahmed Darwish

  150. Temperature dependent of the current–voltage (I–V) characteristics of TaSi2/n-Si structure

    Article • Materials Science in Semiconductor Processing, December 2013, Elsevier

    Ahmed Darwish

  151. Structural and electrical studies on nanostructured InSe thin films

    Article • Applied Surface Science, July 2013, Elsevier

    Ahmed Darwish

  152. Structural characterization and electrical properties of nanostructured 4-tricyanovinyl-N,N-diethylaniline thin films

    Article • The European Physical Journal Applied Physics, April 2013, EDP Sciences

    Ahmed Darwish

  153. Immobilization of horseradish peroxidase on activated wool

    Article • Process Biochemistry, April 2013, Elsevier

    Ahmed Darwish

  154. Influence of γ-irradiation on the optical parameters of 4-tricyanovinyl-N,N-diethylaniline thin films

    Article • Optics Communications, June 2012, Elsevier

    Ahmed Darwish

  155. Optical properties of nanostructured InSe thin films

    Article • Optics Communications, March 2012, Elsevier

    Ahmed Darwish

  156. Fabrication and electrical characterization of p-Sb2S3/n-Si heterojunctions for solar cells application

    Article • Current Applied Physics, November 2011, Elsevier

    Ahmed Darwish

  157. Dark electrical and photovoltaic properties of Schottky device based on organic thin film of 4-tricyanovinyl-N, N-diethylaniline

    Article • The European Physical Journal Applied Physics, October 2009, EDP Sciences

    Ahmed Darwish

  158. Optical properties of organic thin films of 4-tricyanovinyl-N, N-diethylaniline

    Article • The European Physical Journal Applied Physics, September 2009, EDP Sciences

    Ahmed Darwish

  159. Electrical conductivity of 4-tricyanovinyl-N,N-diethylaniline

    Article • Physica B Condensed Matter, January 2008, Elsevier

    Ahmed Darwish

  160. Fourier-transform infrared and optical absorption spectra of 4-tricyanovinyl-N,N-diethylaniline thin films

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, January 2008, Elsevier

    Ahmed Darwish

  161. Investigation of electrical properties of organic 4-tricyanovinyl-N,N-diethylaniline thin film

    Article • Applied Surface Science, August 2007, Elsevier

    Ahmed Darwish

  162. Fabrication and characterization of 4-tricyanovinyl-N,N-diethylaniline/p-silicon hybrid organic–inorganic solar cells

    Article • Solar Energy Materials and Solar Cells, July 2007, Elsevier

    Ahmed Darwish

  163. Fabrication and electrical characterization of p-NiPc/n-Si heterojunction

    Article • Microelectronics Journal, January 2007, Elsevier

    Ahmed Darwish

  164. Structural and transport properties of thermally evaporated nickel phthalocyanine thin films

    Article • Physica Scripta, December 2005, Institute of Physics Publishing

    Ahmed Darwish

  165. Dispersion studies and electronic transitions in nickel phthalocyanine thin films

    Article • Optics & Laser Technology, October 2005, Elsevier

    Ahmed Darwish

  166. Fourier-transform infrared and UV–vis spectroscopes of nickel phthalocyanine thin films

    Article • Materials Chemistry and Physics, July 2005, Elsevier

    Ahmed Darwish

  167. Photovoltaic properties of NiPc/p-Si (organic/inorganic) heterojunctions

    Article • Organic Electronics, June 2005, Elsevier

    Ahmed Darwish

  168. OPTICAL CHARACTERISATION OF THERMALLY EVAPORATED NICKEL PHTHALOCYANINE THIN FILMS

    Article • International Journal of Modern Physics B, January 2004, World Scientific Pub Co Pte Lt

    Ahmed Darwish