Presentations (2016-present)
About
Scheduled Presentations
(Invited) SPIE Photonics West, San Francisco, CA, USA, January 22-27, (2022)
“InGaN-based RGB micro-LED arrays”
K. Ohkawa, Z. Zhuang, D. Iida
(Invited) SPIE Photonics West, San Francisco, CA, USA, January 22-27, (2022)
“MOVPE-grown InGaN quantum-well red micro-LEDs”
K. Ohkawa, D. Iida
(Invited) SPIE Photonics West, San Francisco, CA, USA, January 22-27, (2022)
“Investigation of red InGaN LEDs from mini to micro chip sizes”
R.-H. Horng, D. Iida, K. Ohkawa, Y.-R. Wu, D.-S. Wuu
Presentations
(Invited) 4th technical meeting of the Japan Society of Wide Gap Semiconductors, December 9-10, 2021, “Development of InGaN quantum-wells red micro-LEDs”
K. Ohkawa, D. Iida, Z. Zhuang
(Keynote) International Thin Films Conference (TACT2021), Taipei, Taiwan, November 15-18, 2021
“Red micro-LEDs made of InGaN grown by MOVPE”
Kazuhiro Ohkawa
(Invited) The 40th Electronic Materials Symposium (EMS40), Online, October 11-13, Presented on Oct 13, “InGaN-based RGB micro-LEDs”, Kazuhiro Ohkawa, Zhe Zhuang, Daisuke Iida
(Invited) The 21st international meeting of information display (iMiD2021), Seoul, Korea, August 25-27, 2021, Hybrid. #ON2-2
“Development of InGaN-based red LEDs and fabrication of their micro-LEDs”
K. Ohkawa, D. Iida, Z. Zhuang
(Invited) Global Summit and Expo on Laser, Optics and Photonics (GSELOP2021), Paris, France, August 23-25, 2021, Hybrid. Aug. 25, 11:20-:45
“InGaN-based red LEDs grown by micro-flow-channel MOVPE”
K. Ohkawa
(Invited) 13th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials/ 14th International Conference on Plasma-Nano Technology & Science (ISPlasma2021/ IC-PLANTS2021, Nagoya, Japan, March 7-11, 2021
“International Development of Semiconductor Devices in Saudi Arabia”
K. Ohkawa
(Invited) Red InGaN-QWs LEDs with emission wavelength of 630 nm or more
The 8th Asian Conference on Crystal Growth and Crystal Technology (CGCT), March 1-4, 2021
K. Ohkawa, D. Iida, Z. Zhuang
(Seminar) R&D center, Osram Opto Semiconductors, Germany, February 25, 2021, online
“Development of InGaN-based red LEDs and nitride-MOVPE simulation”
K. Ohkawa
(Invited) CVD Society of Japan, Dec. 18, 2020
“Simulation of AlGaN-MOVPE”
K. Ohkawa
(Invited) Optics & Photonics Taiwan International Conference (OPTIC), National Taipei University of Technology, Taipei, Taiwan, Dec. 3-5, 2020. Presentation # 2020-FRI-S0802-I001 in the session of Solid State Lighting II on Dec. 4, 2020.
“InGaN-based red LEDs using strain-compensated MQWs with AlN/AlGaN barriers”
K. Ohkawa
(Invited) International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems (ASME Interpack), Virtual, October 27-29, 2020, InterPack-2570
“Local Heat Energy Transport Analyses in GaInN/GaN Heterostructure by Microscopic Raman Imaging Employing Simultaneous Irradiation of Two Laser Beams”
Shungo Okamoto, Naomichi Saito, Kotaro Ito, Bei Ma, Ken Morita, Daisuke Iida, Kazuhiro Ohkawa, and Yoshihiro Ishitani
(Invited) International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems (ASME Interpack), Virtual, October 27-29, 2020, InterPack-2572
“Red InGaN-LEDs using strain-compensated quantum well structures”
Kazuhiro Ohkawa, Daisuke Iida and Zhe Zhuang
(Seminar) R&D center, Facebook, Seattle, USA, July 14, 2020
“Challenge of InGaN-LEDs to get more color variety by MOVPE technology”
K. Ohkawa
(Invited) 12th International Symposium on Advanced Plasma Scienceand its Applications for Nitrides and Nanomaterials/ 13th International Conference on Plasma-Nano Technology & Science (ISPlasma2020/ IC-PLANTS2020, Nagoya, Japan, March 8-11, 2020, 10pB09I
“Semiconductor technology for solar clean energy generation: water splitting and artificial photosynthesis”
K. Ohkawa
The conference itself has been cancelled, but the presentation is considered as effective since the conference paper has been published.
(Invited) Optics & Photonics Taiwan, International Conference (OPTIC) 2019, Taichung, Taiwan, Dec. 5-7, 2019, #2019-THU-S0801-I001
“Red InGaN-LEDs Grown by Micro-Flow Channel MOVPE”
K. Ohkawa
(Keynote) International Workshop on Materials Science and Advanced Electronics Created by Singularity (IW-Singularity), Mie, Japan, Oct. 18, 2019.
“InGaN growth mechanism and fabrication of InGaN red LEDs”
K. Ohkawa
(Invited) ASME 2019 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems, Anaheim, USA, Oct. 7-9, 2019, #2019-6362
“Red InGaN LEDs grown by micro-flow channel MOVPE”
K. Ohkawa, and D. Iida
(Invited) 7th International Workshop on Epitaxial Growth and Fundamental Properties of Semiconductor Nanostructures (SemiconNano), Kobe, Japan, Sep. 24-27, 2019, I-04
“Nitride/Oxide Nanostructured Photoelectrodes for Artificial Photosynthesis”
K. Ohkawa, M. Velazquez-Rizo, and D. Iida
(Invited) 2nd CSSL (Center of Solid-State Lighting) Workshop, KACST, Riyadh, Saudi Arabia, April 16, 2019.
“High-In-content InGaN red LEDs grown by micro-flow channel MOCVD”
K. Ohkawa
(Invited) The technical meeting of Solid State Physics and Application Division, Japanese Society of Applied Physics, Tokyo, Japan, December 17, 2018.
“Clean energy generation by nitride photocatalyst”
K. Ohkawa
(Invited) International workshop on UV materials and Devices 2018, Kunming, China, December 10, 2018.
“AlGaN MOVPE growth simulation”
K. Ohkawa
(Invited) International Workshop on Nitride Semiconductors, November 13, 2018.
“High-In-content InGaN-based amber, orange, red light-emitting diodes”
D. Iida, S. Lu, S. Hirahara, K. Niwa, S. Kamiyama, K. Ohkawa
(Invited) 28th Annual Saudi-Japan Symposium 2018, November 12, 2018.
“Clean Energy Generation by Artificial Photosynthesis Based on Semiconductor Technology”
K. Ohkawa
(Invited) 15th China International Forum on Solid State Lighting & 2018 International Forum on Wide Bandgap Semiconductors, October 24, 2018
“AlGaN MOCVD Simulation for Growth Optimization and Reactor Design”
K. Ohkawa
(Plenary) 10th Summer Seminar on Growth and Characterization of Nitride Semiconductors, Ritsumeikan University, Shiga, Japan, 13 September 2017
“Diversity of research strategy”
K. Ohkawa
(Invited) KAUST-NSF Research Conference, 30 January 2017, KAUST
“Clean energy evolution by using nitride photocatalyst”
K. Ohkawa
(Invited) 230th the electrochemical society (ECS) meeting / Pacific Rim Meeting (PRiMe) 2016, Oct. 2-7, 2016, Honolulu, Hawaii, USA, 2054.
“Development of Nitride photocatalysts for Artificial Photosynthesis”
K. Ohkawa