All Stories

  1. Transfer or delivery of micro light-emitting diodes for light-emitting diode displays

    Article • AIP Advances, October 2019, American Institute of Physics

    Professor Jaehee Cho

  2. Temperature Dependent Current-Voltage and Capacitance-Voltage Characteristics of an Au/n-Type Si Schottky Barrier Diode Modified Using a PEDOT:PSS Interlayer

    Article • MATERIALS TRANSACTIONS, January 2015, Japan Institute of Metals

    Professor Jaehee Cho

  3. Enhanced power conversion efficiency of dye-sensitized solar cells with multifunctional photoanodes based on a three-dimensional TiO2 nanohelix array

    Article • Solar Energy Materials and Solar Cells, January 2015, Elsevier

    Professor Jaehee Cho

  4. Fabrication and Characteristics of GaN-Based Light-Emitting Diodes with a Reduced Graphene Oxide Current-Spreading Layer

    Article • ACS Applied Materials & Interfaces, December 2014, American Chemical Society (ACS)

    Professor Jaehee Cho

  5. GaInN-based light emitting diodes embedded with wire grid polarizers

    Article • Japanese Journal of Applied Physics, December 2014, Japan Society of Applied Physics

    Professor Jaehee Cho

  6. Strong correlation between capacitance and breakdown voltage of GaInN/GaN light-emitting diodes

    Article • Electronic Materials Letters, November 2014, Springer Science + Business Media

    Professor Jaehee Cho

  7. Transient voltage suppressor diode designed for the protection of high-brightness GaN-based LEDs from various electrostatic discharge shocks

    Article • Journal of the Korean Physical Society, October 2014, Korean Physical Society

    Professor Jaehee Cho

  8. Size dependence of silica nanospheres embedded in 385 nm ultraviolet light-emitting diodes on a far-field emission pattern

    Article • Optics Express, September 2014, Optical Society of America (OSA)

    Professor Jaehee Cho

  9. S6-G4: High injection and efficiency droop in GaInN light-emitting diodes

    Article • August 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Jaehee Cho

  10. Fabrication of tapered graded-refractive-index micropillars using ion-implanted-photoresist as an etch mask

    Article • Journal of Vacuum Science & Technology A Vacuum Surfaces and Films, March 2014, American Vacuum Society

    Professor Jaehee Cho

  11. GaInN light-emitting diodes using separate epitaxial growth for the p-type region to attain polarization-inverted electron-blocking layer, reduced electron leakage, and improved hole injection

    Article • Applied Physics Letters, November 2013, American Institute of Physics

    Professor Jaehee Cho

  12. A Universal Method of Producing Transparent Electrodes Using Wide-Bandgap Materials

    Article • Advanced Functional Materials, November 2013, Wiley

    Professor Jaehee Cho

  13. Analysis of the temperature dependence of the forward voltage characteristics of GaInN light-emitting diodes

    Article • Applied Physics Letters, September 2013, American Institute of Physics

    Professor Jaehee Cho

  14. Enhanced overall efficiency of GaInN-based light-emitting diodes with reduced efficiency droop by Al-composition-graded AlGaN/GaN superlattice electron blocking layer

    Article • Applied Physics Letters, August 2013, American Institute of Physics

    Professor Jaehee Cho

  15. Effect of Quantum Barrier Thickness in the Multiple-Quantum-Well Active Region of GaInN/GaN Light-Emitting Diodes

    Article • IEEE Photonics Journal, August 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Jaehee Cho

  16. Identifying the cause of the efficiency droop in GaInN light-emitting diodes by correlating the onset of high injection with the onset of the efficiency droop

    Article • Applied Physics Letters, June 2013, American Institute of Physics

    Professor Jaehee Cho

  17. Brighter and smarter LEDs via graded refractive indexes

    Article • SPIE Newsroom, June 2013, SPIE

    Professor Jaehee Cho

  18. Efficiency droop in light-emitting diodes: Challenges and countermeasures

    Article • Laser & Photonics Review, January 2013, Wiley

    Professor Jaehee Cho

  19. Enhanced phosphor conversion efficiency of GaN-based white light-emitting diodes having dichroic-filtering contacts

    Article • Journal of Materials Chemistry C, January 2013, Royal Society of Chemistry

    Professor Jaehee Cho

  20. Optically functional surface structures for GaN-based light-emitting diodes

    Article • Journal of Materials Chemistry C, January 2013, Royal Society of Chemistry

    Professor Jaehee Cho

  21. Nanostructured Transparent Conductive Oxides for Photovoltaic Applications

    Article • MRS Proceedings, January 2013, Cambridge University Press

    Professor Jaehee Cho

  22. Enhanced broadband and omni-directional performance of polycrystalline Si solar cells by using discrete multilayer antireflection coatings

    Article • Optics Express, December 2012, Optical Society of America (OSA)

    Professor Jaehee Cho

  23. Method for determining the radiative efficiency of GaInN quantum wells based on the width of efficiency-versus-carrier-concentration curve

    Article • Applied Physics Letters, December 2012, American Institute of Physics

    Professor Jaehee Cho

  24. Tailored Nanoporous Coatings Fabricated on Conformable Polymer Substrates

    Article • ACS Applied Materials & Interfaces, November 2012, American Chemical Society (ACS)

    Professor Jaehee Cho

  25. Development of large area nanostructure antireflection coatings for EO/IR sensor applications

    Article • October 2012, SPIE

    Professor Jaehee Cho

  26. Analysis of parasitic cyan luminescence occurring in GaInN blue light-emitting diodes

    Article • Journal of Applied Physics, October 2012, American Institute of Physics

    Professor Jaehee Cho

  27. Strong light-extraction enhancement in GaInN light-emitting diodes patterned with TiO2 micro-pillars with tapered sidewalls

    Article • Applied Physics Letters, October 2012, American Institute of Physics

    Professor Jaehee Cho

  28. Enhanced Omnidirectional Photovoltaic Performance of Solar Cells Using Multiple-Discrete-Layer Tailored- and Low-Refractive Index Anti-Reflection Coatings

    Article • Advanced Functional Materials, September 2012, Wiley

    Professor Jaehee Cho

  29. Polarized light emission from GaInN light-emitting diodes embedded with subwavelength aluminum wire-grid polarizers

    Article • Applied Physics Letters, August 2012, American Institute of Physics

    Professor Jaehee Cho

  30. Enhanced light-extraction from a GaN waveguide using micro-pillar TiO2 SiO2 graded-refractive-index layers

    Article • physica status solidi (a), August 2012, Wiley

    Professor Jaehee Cho

  31. Emission pattern control and polarized light emission through patterned graded-refractive-index coatings on GaInN light-emitting diodes

    Article • Optics Express, July 2012, Optical Society of America (OSA)

    Professor Jaehee Cho

  32. Broadband nanostructured antireflection coating on glass for photovoltaic applications

    Article • June 2012, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Jaehee Cho

  33. Experimental and Theoretical Study of the Optical and Electrical Properties of Nanostructured Indium Tin Oxide Fabricated by Oblique-Angle Deposition

    Article • Journal of Nanoscience and Nanotechnology, May 2012, American Scientific Publishers

    Professor Jaehee Cho

  34. Analytic model for the efficiency droop in semiconductors with asymmetric carrier-transport properties based on drift-induced reduction of injection efficiency

    Article • Applied Physics Letters, April 2012, American Institute of Physics

    Professor Jaehee Cho

  35. Efficiency droop in AlGaInP and GaInN light-emitting diodes

    Article • Applied Physics Letters, March 2012, American Institute of Physics

    Professor Jaehee Cho

  36. Temperature dependent efficiency droop in GaInN light-emitting diodes with different current densities

    Article • Applied Physics Letters, February 2012, American Institute of Physics

    Professor Jaehee Cho

  37. Reduction of efficiency droop in GaInN/GaN light-emitting diodes with thick AlGaN cladding layers

    Article • Electronic Materials Letters, February 2012, Springer Science + Business Media

    Professor Jaehee Cho

  38. Development of nanostructure based antireflection coatings for EO/IR sensor applications

    Article • February 2012, SPIE

    Professor Jaehee Cho

  39. Efficiency Droop in III-Nitride LEDs

    Article • January 2012, Optical Society of America (OSA)

    Professor Jaehee Cho

  40. Genetic Algorithm for Innovative Device Designs in High-Efficiency III–V Nitride Light-Emitting Diodes

    Article • Applied Physics Express, January 2012, Institute of Physics Publishing

    Professor Jaehee Cho

  41. Asymmetry of carrier transport leading to efficiency droop in GaInN based light-emitting diodes

    Article • January 2012, Optical Society of America (OSA)

    Professor Jaehee Cho

  42. Internal quantum efficiency in light-emitting diodes based on the width of efficiency-versus-carrier-concentration curve

    Article • January 2012, Optical Society of America (OSA)

    Professor Jaehee Cho

  43. Transport-mechanism analysis of the reverse leakage current in GaInN light-emitting diodes

    Article • Applied Physics Letters, December 2011, American Institute of Physics

    Professor Jaehee Cho

  44. Asymmetry of carrier transport leading to efficiency droop in GaInN based light-emitting diodes

    Article • Applied Physics Letters, December 2011, American Institute of Physics

    Professor Jaehee Cho

  45. Promotion of hole injection enabled by GaInN/GaN light-emitting triodes and its effect on the efficiency droop

    Article • Applied Physics Letters, October 2011, American Institute of Physics

    Professor Jaehee Cho

  46. High-voltage quantum well waveguide solar cells

    Article • September 2011, SPIE

    Professor Jaehee Cho

  47. Optically functional surface composed of patterned graded-refractive-index coatings to enhance light-extraction of GaInN light-emitting diodes

    Article • Journal of Applied Physics, September 2011, American Institute of Physics

    Professor Jaehee Cho

  48. Effects of the refractive index of the encapsulant on the light-extraction efficiency of light-emitting diodes

    Article • Optics Express, August 2011, Optical Society of America (OSA)

    Professor Jaehee Cho

  49. Effects of polarization-field tuning in GaInN light-emitting diodes

    Article • Applied Physics Letters, July 2011, American Institute of Physics

    Professor Jaehee Cho

  50. On the temperature dependence of electron leakage from the active region of GaInN/GaN light-emitting diodes

    Article • Applied Physics Letters, July 2011, American Institute of Physics

    Professor Jaehee Cho

  51. High-performance antireflection coatings utilizing nanoporous layers

    Article • MRS Bulletin, June 2011, Cambridge University Press

    Professor Jaehee Cho

  52. Electrically conductive thin-film color filters made of single-material indium-tin-oxide

    Article • Journal of Applied Physics, May 2011, American Institute of Physics

    Professor Jaehee Cho

  53. Ultra-high transmittance through nanostructure-coated glass for solar cell applications

    Article • May 2011, SPIE

    Professor Jaehee Cho

  54. Nanostructured Multilayer Tailored-Refractive-Index Antireflection Coating for Glass with Broadband and Omnidirectional Characteristics

    Article • Applied Physics Express, May 2011, Institute of Physics Publishing

    Professor Jaehee Cho

  55. Strong light extraction enhancement in GaInN light-emitting diodes by using self-organized nanoscale patterning of p-type GaN

    Article • Applied Physics Letters, February 2011, American Institute of Physics

    Professor Jaehee Cho

  56. Nanostructre based antireflection coatings for EO/IR sensor applications

    Article • February 2011, SPIE

    Professor Jaehee Cho

  57. On the symmetry of efficiency-versus-carrier-concentration curves in GaInN/GaN light-emitting diodes and relation to droop-causing mechanisms

    Article • Applied Physics Letters, January 2011, American Institute of Physics

    Professor Jaehee Cho

  58. Characteristics of dotlike green satellite emission in GaInN light emitting diodes

    Article • Applied Physics Letters, January 2011, American Institute of Physics

    Professor Jaehee Cho

  59. Temperature-dependent light-output characteristics of GaInN light-emitting diodes with different dislocation densities

    Article • physica status solidi (a), January 2011, Wiley

    Professor Jaehee Cho

  60. Promises and Challenges in Light-Emitting Diodes for High-Power Lighting Applications

    Article • January 2011, Optical Society of America (OSA)

    Professor Jaehee Cho

  61. Inductively coupled plasma etching of graded-refractive-index layers of TiO2 and SiO2 using an ITO hard mask

    Article • Journal of Vacuum Science & Technology A Vacuum Surfaces and Films, January 2011, American Vacuum Society

    Professor Jaehee Cho

  62. A complementary matching technique to reduce the variance of optical and electrical properties of light-emitting diodes

    Article • Journal of the Society for Information Display, January 2011, Wiley

    Professor Jaehee Cho

  63. On the symmetry of efficiency-versus-carrier-concentration curves in GaInN/GaN light-emitting diodes and relation to droop-causing mechanisms

    Article • January 2011, Optical Society of America (OSA)

    Professor Jaehee Cho

  64. Electron-beam excitation

    Article • Nature Photonics, November 2010, Springer Science + Business Media

    Professor Jaehee Cho

  65. Demonstration of optical interference filters utilizing tunable refractive index layers

    Article • Optics Express, October 2010, Optical Society of America (OSA)

    Professor Jaehee Cho

  66. Analysis of thermal properties of GaInN light-emitting diodes and laser diodes

    Article • Journal of Applied Physics, October 2010, American Institute of Physics

    Professor Jaehee Cho

  67. Carrier recombination mechanisms and efficiency droop in GaInN/GaN light-emitting diodes

    Article • Applied Physics Letters, September 2010, American Institute of Physics

    Professor Jaehee Cho

  68. Electrical and optical characterization of GaN-based light-emitting diodes fabricated with top-emission and flip-chip structures

    Article • Materials Science in Semiconductor Processing, September 2010, Elsevier

    Professor Jaehee Cho

  69. Enhancement of photovoltaic cell response due to high-refractive-index encapsulants

    Article • Journal of Applied Physics, August 2010, American Institute of Physics

    Professor Jaehee Cho

  70. Nanostructure-based antireflection coatings for EO/IR sensor applications

    Article • April 2010, SPIE

    Professor Jaehee Cho

  71. Enhanced electron capture and symmetrized carrier distribution in GaInN light-emitting diodes having tailored barrier doping

    Article • Applied Physics Letters, March 2010, American Institute of Physics

    Professor Jaehee Cho

  72. Refractive-Index-Matched Indium–Tin-Oxide Electrodes for Liquid Crystal Displays

    Article • Japanese Journal of Applied Physics, December 2009, Japan Society of Applied Physics

    Professor Jaehee Cho

  73. Color tunable light-emitting diodes with modified pulse-width modulation

    Article • physica status solidi (RRL) - Rapid Research Letters, September 2009, Wiley

    Professor Jaehee Cho

  74. Color rendering ability and luminous efficacy enhancements in white light-emitting diodes

    Article • August 2009, SPIE

    Professor Jaehee Cho

  75. Improved color rendering and luminous efficacy in phosphor-converted white light-emitting diodes by use of dual-blue emitting active regions

    Article • Optics Express, June 2009, Optical Society of America (OSA)

    Professor Jaehee Cho

  76. Study of UV excited white light-emitting diodes for optimization of luminous efficiency and color rendering index

    Article • physica status solidi (RRL) - Rapid Research Letters, January 2009, Wiley

    Professor Jaehee Cho

  77. Improved Emission Efficiency in InGaN Light-Emitting Diodes Using Reverse Bias in Pulsed Voltage Operation

    Article • IEEE Photonics Technology Letters, July 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Jaehee Cho

  78. Effects of p-Electrode Reflectivity on Extraction Efficiency of Nitride-Based Light-Emitting Diodes

    Article • Applied Physics Express, April 2008, Institute of Physics Publishing

    Professor Jaehee Cho

  79. Leakage current origins and passivation effect of GaN-based light emitting diodes fabricated with Ag p-contacts

    Article • Applied Physics Letters, March 2008, American Institute of Physics

    Professor Jaehee Cho

  80. Alternating-current Light Emitting Diodes with a Diode Bridge Circuitry

    Article • Japanese Journal of Applied Physics, December 2007, Japan Society of Applied Physics

    Professor Jaehee Cho

  81. Enhanced Light Output of GaN-Based Light-Emitting Diodes by Using Omnidirectional Sidewall Reflectors

    Article • IEEE Photonics Technology Letters, October 2007, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Jaehee Cho

  82. Consideration of the Actual Current-Spreading Length of GaN-Based Light-Emitting Diodes for High-Efficiency Design

    Article • IEEE Journal of Quantum Electronics, August 2007, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Jaehee Cho

  83. Polarization of light emission by 460nm GaInN∕GaN light-emitting diodes grown on (0001) oriented sapphire substrates

    Article • Applied Physics Letters, July 2007, American Institute of Physics

    Professor Jaehee Cho

  84. Design of high-efficiency GaN-based light emitting diodes with vertical injection geometry

    Article • Applied Physics Letters, July 2007, American Institute of Physics

    Professor Jaehee Cho

  85. Enhanced light extraction of GaN-based light-emitting diodes by using textured n-type GaN layers

    Article • Applied Physics Letters, April 2007, American Institute of Physics

    Professor Jaehee Cho

  86. Measurements of current spreading length and design of GaN-based light emitting diodes

    Article • Applied Physics Letters, February 2007, American Institute of Physics

    Professor Jaehee Cho

  87. High-Reflectance and Thermally Stable AgCu Alloy p-Type Reflectors for GaN-Based Light-Emitting Diodes

    Article • IEEE Photonics Technology Letters, January 2007, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Jaehee Cho

  88. Enhanced light-extraction in GaInN near-ultraviolet light-emitting diode with Al-based omnidirectional reflector having NiZn∕Ag microcontacts

    Article • Applied Physics Letters, October 2006, American Institute of Physics

    Professor Jaehee Cho

  89. Trapped whispering-gallery optical modes in white light-emitting diode lamps with remote phosphor

    Article • Applied Physics Letters, July 2006, American Institute of Physics

    Professor Jaehee Cho

  90. GaN light-emitting triodes for high-efficiency hole injection and light emission

    Article • February 2006, SPIE

    Professor Jaehee Cho

  91. GaInN light-emitting diode with conductive omnidirectional reflector having a low-refractive-index indium-tin oxide layer

    Article • Applied Physics Letters, January 2006, American Institute of Physics

    Professor Jaehee Cho

  92. GaN Light-Emitting Triodes for High-Efficiency Hole Injection

    Article • Journal of The Electrochemical Society, January 2006, The Electrochemical Society

    Professor Jaehee Cho

  93. Enhancement of light extraction in GaInN light-emitting diodes by conductive omni-directional reflectors

    Article • January 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Professor Jaehee Cho

  94. Enhanced light extraction from GaN-based light-emitting diodes with holographically generated two-dimensional photonic crystal patterns

    Article • Applied Physics Letters, November 2005, American Institute of Physics

    Professor Jaehee Cho

  95. Light-output enhancement of GaN-based light-emitting diodes by using hole-patterned transparent indium tin oxide electrodes

    Article • Journal of Applied Physics, October 2005, American Institute of Physics

    Professor Jaehee Cho

  96. Recent development of patterned structure light-emitting diodes

    Article • August 2005, SPIE

    Professor Jaehee Cho

  97. Enhancement of light extraction in GaN light-emitting diodes by omni-directional reflectors with ITO nanorod low-refractive-index layer

    Article • August 2005, SPIE

    Professor Jaehee Cho

  98. Improved light extraction efficiency in III-nitride photonic crystal light-emitting diodes

    Article • August 2005, SPIE

    Professor Jaehee Cho

  99. Measuring the junction temperature of III-nitride light emitting diodes using electro-luminescence shift

    Article • physica status solidi (a), July 2005, Wiley

    Professor Jaehee Cho

  100. Analysis of high-power packages for phosphor-based white-light-emitting diodes

    Article • Applied Physics Letters, June 2005, American Institute of Physics

    Professor Jaehee Cho

  101. Strongly Enhanced Phosphor Efficiency in GaInN White Light-Emitting Diodes Using Remote Phosphor Configuration and Diffuse Reflector Cup

    Article • Japanese Journal of Applied Physics, May 2005, Japan Society of Applied Physics

    Professor Jaehee Cho

  102. Simulation and fabrication of highly efficient InGaN-based LEDs with corrugated interface substrate

    Article • physica status solidi c, March 2005, Wiley

    Professor Jaehee Cho

  103. Analysis of high-power packages for white-light-emitting diode lamps with remote phosphor

    Article • MRS Proceedings, January 2005, Cambridge University Press

    Professor Jaehee Cho

  104. InGaN/GaN multi-quantum well distributed Bragg reflector laser diode

    Article • Applied Physics Letters, March 2000, American Institute of Physics

    Professor Jaehee Cho

  105. Extraction efficiency enhancement in GaN-based light emitters grown on a holographically nano-patterned sapphire substrate

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Professor Jaehee Cho

  106. High-power packages for phosphor-based white-light-emitting diode lamps

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Professor Jaehee Cho