Prof. Ohkawa received a Certificate of Recognition & Appreciation as 2022 ACS Publications Peer Reviewer, American Chemical Society.
Professor Kazuhiro Group recently received the Japan Society of Applied Physics (JSAP) Outstanding Paper Award 2022. According to the JSAP, the award is presented to “the authors of outstanding papers published in the membership journal, Oyo Buturi, Japanese Journal of Applied Physics, and Applied Physics Express. These awards honor the authors of papers that are regarded as exceptional achievements in applied physics.”
We have grown high-crystallinity InGaN layers on ScAlMgO4 (SAM) substrates using metalorganic vapor-phase epitaxy. We have prepared
atomically flat SAM substrates by cleaving them along the c-plane and have utilized direct InGaN growth without any low-temperature buffer
layer. The resulting InGaN layer has a distinct hexagonal hillock morphology and remarkable crystalline quality.
Martin, in collaboration with the EXPEC ARC, Saudi Aramco, reviewed the different technologies and approaches explored to improve the energy efficiency and stability of H2S electrolytic systems at temperatures below the sulfur dew point. The review paper was published in Frontiers in Chemical Engineering.”
The New Journal of Chemistry is for new directions in chemistry. The latest issue (volume 46, Nover 48) has adopted scientific art made by Artem Shushanian (a PhD candidate).
We have developed a new LED structure by using hydrogen passivation. The result is accepted in Crystals to the Special Issue "In Celebration of the 30th Anniversary of Shuji Nakamura’s Contribution to Blue Light-emitting Diodes”. The new device showed higher EQE and WPE compared to the conventional LED structures.
KAUST Professor of Electrical Engineering Kazuhiro Ohkawa recently received the Japan Society of Applied Physics (JSAP) Outstanding Paper Award 2022. He will officially receive his award at the JSAP’s annual Spring Meeting in Tokyo in March 2023.
A US patent (11,469,574) has been issued by the United States Patent and Trademark Office (USPTO) on October 11, 2022. The patent covers our original MOCVD methods and device structures.
We studied the electrochemical property of nitride semiconductors. It was expected to be the three-electron nature so far. However, we have found out that it is the six-electron nature. The six-electron nature was observed in different solutions and pH levels, resulting in a universal phenomenon for nitride semiconductors. The result will be useful to control electrochemical etching and other treatments to achieve their precise control.
Prof. Ohkawa delivers a special lecture “Development of InGaN-based red micro-LEDs for display applications” via Zoom for the committee about high-power light sources of the Institute of Electrical Engineers of Japan on October 28, 2022.
Prof. Ohkawa delivers an invited talk about “Strain-compensated InGaN-based standard/micro-LEDs” at the SPIE Photonics West, San Francisco, USA, Jan 30 – Feb 2, 2023
Prof. Ohkawa delivers an invited talk about “InGaN-based red micro-LEDs” at the 10th Asia-Pacific Workshop on Widegap Semiconductors (APWS 2022), Taoyuan, Taiwan, November 13-18, 2022
Prof. Ohkawa has accepted the nomination of the Editorial Board Member of the Scientific Reports, Nature Publishing Group. Scientific Reports is an open-access journal publishing rigorously peer-reviewed research from across the natural sciences, psychology, medicine, and engineering. This journal is one of the highly ranked ones, has a 2-year impact factor: 4.996 (2021), and is the 5th most-cited journal in the world.
Dr. Iida has accepted the nomination of the Editorial Board Member of the Scientific Reports, Nature Publishing Group. Scientific Reports is an open-access journal publishing rigorously peer-reviewed research from across the natural sciences, psychology, medicine, and engineering. This journal is one of the highly ranked ones, has a 2-year impact factor: 4.996 (2021), and is the 5th most-cited journal in the world.
Prof. Ohkawa delivers an invited lecture “Micro-LEDs for Display Applications” via Zoom at the Special Symposium on Widegap Semiconductor Optical & Electronic Devices organized by the Japan Society of Wide Gap Semiconductors (WideG).