All Stories

  1. Morphology investigation of metalorganic vapor phase epitaxy homoepitaxial (001) β-Ga2O3 growth on on-axis and 6° off-axis substrates

    Article • Journal of Vacuum Science & Technology A Vacuum Surfaces and Films, April 2026, American Vacuum Society

    Ta-Shun Chou

  2. Metalorganic vapor phase epitaxy of β-(AlxGa1−x)2O3 (x = 0–0.55) and multilayer structure on (100) β-(Al0.24Ga0.76)2O3 substrates

    Article • Journal of Vacuum Science & Technology A Vacuum Surfaces and Films, March 2026, American Vacuum Society

    Ta-Shun Chou

  3. Ohmic contact formation on n-type β-Ga2O3: Comparative analysis of Ti/Au and ITO/Ti/Au metallization schemes

    Article • Journal of Vacuum Science & Technology A Vacuum Surfaces and Films, February 2026, American Vacuum Society

    Ta-Shun Chou

  4. Morphology investigation of MOVPE homoepitaxial (001) β-Ga2O3 growth on on-axis and 6° off-axis substrates

    Article • January 2026, Springer Science + Business Media

    Ta-Shun Chou

  5. Characterization of strain effects on structure, surface morphology, and band gap of MOVPE grown β-Ga 2 O 3 thin films on β-(Al

    Article • Journal of Physics D Applied Physics, December 2025, Institute of Physics Publishing

    Ta-Shun Chou

  6. Al composition dependence of band alignment in NiO/(AlxGa1−x)2O3 heterojunctions

    Article • Journal of Vacuum Science & Technology A Vacuum Surfaces and Films, December 2025, American Vacuum Society

    Ta-Shun Chou

  7. Characterization of strain effects on structure, surface morphology, and band gap of MOVPE grown β-Ga2O3 thin films on β-(AlxGa1-x)2O3 substrates

    Article • October 2025, Springer Science + Business Media

    Ta-Shun Chou

  8. A Second Look at 2D Simulation of FIB Milling: Accounting for Mean-Free Path Effects in Redeposition and Sputtering

    Article • August 2025, Springer Science + Business Media

    Ta-Shun Chou

  9. Optimizing the morphology transition on MOVPE-grown (100) β-Ga2O3 film between step-flow growth and step-bunching: A machine learning-assisted approach

    Article • APL Materials, May 2025, American Institute of Physics

    Ta-Shun Chou

  10. In-situ reflectance analysis of Si-doped β-Ga2O3 films grown by MOVPE: The influence of doping concentration and substrate conductivity

    Article • Journal of Applied Physics, March 2025, American Institute of Physics

    Ta-Shun Chou

  11. Controlling the morphology transition on MOVPE-grown (100) β-Ga2O3 film between step-flow growth and step-bunching: A machine learning-assisted approach

    Article • February 2025, Springer Science + Business Media

    Ta-Shun Chou

  12. Impurity-induced step pinning and recovery in MOVPE-grown (100) β-Ga2O3 film

    Article • Applied Physics Letters, January 2025, American Institute of Physics

    Ta-Shun Chou

  13. Out‐Diffusion and Uphill‐Diffusion of Mg in Czochralski‐Grown (100) β‐Ga2O3 Under High‐Temperature Annealing and Its Influence on Lateral MOSFET Devices

    Article • Advanced Electronic Materials, October 2024, Wiley

    Ta-Shun Chou

  14. Influencing the morphological stability of MOVPE-grown β-Ga2O3 films by O2/Ga ratio

    Article • Applied Surface Science, July 2024, Elsevier

    Ta-Shun Chou

  15. Impurity-induced Step Pinning and Recovery in MOVPE-grown (100) β-Ga2O3 Film: The Influence of Ga supersaturation

    Article • June 2024, Springer Science + Business Media

    Ta-Shun Chou

  16. In-situ spectral reflectance investigation of hetero-epitaxially grown β-Ga2O3 thin films on c-plane Al2O3 via MOVPE process

    Article • Applied Surface Science, April 2024, Elsevier

    Ta-Shun Chou

  17. Charge state transition levels of Ni in β-Ga2O3 crystals from experiment and theory: An attractive candidate for compensation doping

    Article • Journal of Applied Physics, November 2023, American Institute of Physics

    Palvan Seyidov, Ta-Shun Chou

  18. Exploring miscut angle influence on (100) β-Ga2O3 homoepitaxial films growth: Comparing MOVPE growth with MBE approaches

    Article • Journal of Applied Physics, November 2023, American Institute of Physics

    Ta-Shun Chou

  19. Development of the VGF Crystal Growth Recipe: Intelligent Solutions of Ill‐Posed Inverse Problems using Images and Numerical Data

    Article • Crystal Research and Technology, August 2023, Wiley

    Ta-Shun Chou

  20. Ge-ion implantation and activation in (100) β-Ga2O3 for ohmic contact improvement using pulsed rapid thermal annealing

    Article • Journal of Vacuum Science & Technology A Vacuum Surfaces and Films, May 2023, American Vacuum Society

    Ta-Shun Chou

  21. Enhancement-mode vertical (100) β-Ga2O3 FinFETs with an average breakdown strength of 2.7 MV cm−1

    Article • Japanese Journal of Applied Physics, March 2023, Institute of Physics Publishing

    Ta-Shun Chou

  22. High-mobility 4 μm MOVPE-grown (100) β-Ga2O3 film by parasitic particles suppression

    Article • Japanese Journal of Applied Physics, February 2023, Institute of Physics Publishing

    Ta-Shun Chou

  23. Homoepitaxial growth rate measurement and surface morphology monitoring of MOVPE-grown Si-doped (1 0 0) β-Ga2O3 thin films using in-situ reflectance spectroscopy

    Article • Journal of Crystal Growth, February 2023, Elsevier

    Ta-Shun Chou

  24. Suppression of particle formation by gas-phase pre-reactions in (100) MOVPE-grown β-Ga2O3 films for vertical device application

    Article • Applied Physics Letters, January 2023, American Institute of Physics

    Ta-Shun Chou

  25. Bulk single crystals and physical properties of β-(AlxGa1−x)2O3 (x = 0–0.35) grown by the Czochralski method

    Article • Journal of Applied Physics, January 2023, American Institute of Physics

    Zbigniew Galazka, Ta-Shun Chou

  26. In - Situ Spectral Reflectance Investigation of Heteroepitaxial Grown Β-Ga2o3thin Films on C-Plane Al2o3 Via Movpe Process

    Article • January 2023, Elsevier

    Ta-Shun Chou

  27. Perspectives on MOVPE-grown (100) β-Ga2O3 thin films and its Al-alloy for power electronics application

    Article • Applied Physics Letters, December 2022, American Institute of Physics

    Ta-Shun Chou

  28. Cobalt as a promising dopant for producing semi-insulating β-Ga2O3 crystals: Charge state transition levels from experiment and theory

    Article • APL Materials, November 2022, American Institute of Physics

    Palvan Seyidov, Ta-Shun Chou

  29. Effect of post-metallization anneal on (100) Ga2O3/Ti–Au ohmic contact performance and interfacial degradation

    Article • APL Materials, September 2022, American Institute of Physics

    Ta-Shun Chou

  30. Exploiting the Nanostructural Anisotropy of β-Ga2O3 to Demonstrate Giant Improvement in Titanium/Gold Ohmic Contacts

    Article • ACS Nano, August 2022, American Chemical Society (ACS)

    Ta-Shun Chou

  31. Machine learning supported analysis of MOVPE grown β-Ga2O3 thin films on sapphire

    Article • Journal of Crystal Growth, August 2022, Elsevier

    Ta-Shun Chou

  32. Si doping mechanism in MOVPE-grown (100) β-Ga2O3 films

    Article • Applied Physics Letters, July 2022, American Institute of Physics

    Ta-Shun Chou, Ta-Shun Chou

  33. Refractory metal-based ohmic contacts on β-Ga2O3 using TiW

    Article • APL Materials, July 2022, American Institute of Physics

    Kornelius Tetzner, Ta-Shun Chou

  34. Two inch diameter, highly conducting bulk β-Ga2O3 single crystals grown by the Czochralski method

    Article • Applied Physics Letters, April 2022, American Institute of Physics

    Zbigniew Galazka, Ta-Shun Chou

  35. SnO/β-Ga2O3 heterojunction field-effect transistors and vertical p–n diodes

    Article • Applied Physics Letters, March 2022, American Institute of Physics

    Kornelius Tetzner, Ta-Shun Chou

  36. Toward Precise n-Type Doping Control in MOVPE-Grown β-Ga2O3 Thin Films by Deep-Learning Approach

    Article • Crystals, December 2021, MDPI AG

    Ta-Shun Chou

  37. Fast homoepitaxial growth of (100) β-Ga2O3 thin films via MOVPE

    Article • AIP Advances, November 2021, American Institute of Physics

    Ta-Shun Chou

  38. Impact of chamber pressure and Si-doping on the surface morphology and electrical properties of homoepitaxial (100) β-Ga2O3thin films grown by MOVPE

    Article • Journal of Physics D Applied Physics, October 2020, Institute of Physics Publishing

    Ta-Shun Chou

  39. Self-Selecting Resistive Switching Scheme Using TiO2 Nanorod Arrays

    Article • Scientific Reports, May 2017, Springer Science + Business Media

    Ta-Shun Chou

  40. Direct formation of large-scale multi-layered germanene on Si substrate

    Article • Physical Chemistry Chemical Physics, January 2015, Royal Society of Chemistry

    Ta-Shun Chou