Kazuhiro Ohkawa

5.1k citations

199 papers · 4.0k indexed · h-index 36

Condensed Matter Physics top 0.5%
- GaN-based semiconductor devices and materials 113
Electronic, Optical and Magnetic Materials top 2%
- Ga2O3 and related materials 68
Materials Chemistry top 2%
- ZnO doping and properties 60
- Quantum Dots Synthesis And Properties 27
Atomic and Molecular Physics, and Optics top 2%
- Semiconductor Quantum Structures and Devices 75
Renewable Energy, Sustainability and the Environment top 5%
- Advanced Photocatalysis Techniques 26
Mechanics of Materials
- Metal and Thin Film Mechanics 25
Electrical and Electronic Engineering
- Chalcogenide Semiconductor Thin Films 18

Co-authors: Tsuneo Mitsuyu Daisuke Iida Zhe Zhuang T. Karasawa Katsushi Fujii Osamu Yamazaki Kazuhide Kusakabe Martin Velazquez‐Rizo
Cited by: Condensed Matter Physics Electronic, Optical and Magnetic Materials Materials Chemistry
Journals: Japanese Journal of Applied Physics (28 papers)Journal of Crystal Growth (26 papers)Applied Physics Letters (21 papers)
Partner nations: Japan Saudi Arabia Germany

In The Last Decade

Kazuhiro Ohkawa

191 papers receiving 3.9k citations

Peers

Countries citing papers authored by Kazuhiro Ohkawa

Since Specialization

Citations

This map shows the geographic impact of Kazuhiro Ohkawa's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Kazuhiro Ohkawa with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kazuhiro Ohkawa more than expected).

Fields of papers citing papers by Kazuhiro Ohkawa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kazuhiro Ohkawa. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Kazuhiro Ohkawa. The network helps show where Kazuhiro Ohkawa may publish in the future.

Co-authorship network

The 25 scholars most cited alongside Kazuhiro Ohkawa, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Kazuhiro Ohkawa Line = papers co-authored together Kazuhiro Ohkawa links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Correlative Micro‐Photoluminescence Study on Hybrid Quantum‐Well InGaN Red Light‐Emitting Diodes physica status solidi (b) ·德平,Ryota Ishii,Kanako Shojiki,Mitsuru Funato,Daisuke Iida,Kazuhiro Ohkawa,Yoichi Kawakami	2024	2
2	Characteristics of Stacked GaInN‐Based Red, Green, and Blue Full‐Color Monolithic μLED Arrays Connected via Tunnel Junctions physica status solidi (a) ·冯鸽,Naoki Hasegawa,Y. Sakai,Norikatsu Koide,Tetsuya Takeuchi,Satoshi Kamiyama,Daisuke Iida,Kazuhiro Ohkawa,Motoaki Iwaya	2024	2
3	Red light-emitting diode with full InGaN structure on a ScAlMgO₄ substrate Applied Physics Express ·T L Lin Alex,Abdelhamid Haddad,I. Kotov,Cesur Altinkaya,Wakana Takeuchi,Daisuke Iida,Kazuhiro Ohkawa	2024	2
4	Investigation of N-polar InGaN growth on misoriented ScAlMgO4 substrates Scientific Reports ·T L Lin Alex,Pavel Kirilenko,Daisuke Iida,Kazuhiro Ohkawa	2023	1
5	RGB monolithic GaInN-based μLED arrays connected via tunnel junctions Applied Physics Express ·冯鸽,Naoki Hasegawa,Tuncay TOPDEMİR,Y. Sakai,Tetsuya Takeuchi,Satoshi Kamiyama,Daisuke Iida,Kazuhiro Ohkawa,Motoaki Iwaya	2023	19
6	Simultaneous Growth Strategy of High-Optical-Efficiency GaN NWs on a Wide Range of Substrates by Pulsed Laser Deposition ACS Omega ·Dhaifallah R. Almalawi,Sergei Lopatin,P. R. Edwards,Bin Xin,Ram Chandra Subedi,T L Lin Alex,K. Esfeld,Alessandro Genovese,Daisuke Iida,Nimer Wehbe,Boon S. Ooi,Kazuhiro Ohkawa,Robert Martin,Iman S. Roqan	2023	4
7	High crystallinity N-polar InGaN layers grown on cleaved ScAlMgO4 substrates AIP Advances ·Pavel Kirilenko,T L Lin Alex,Bei Ma,Shilpa Shah,Martin Velazquez‐Rizo,Daisuke Iida,Kazuhiro Ohkawa	2023	4
8	Demonstration of 621-nm-wavelength InGaN-based single-quantum-well LEDs with an external quantum efficiency of 4.3% at 10.1 A/cm2 AIP Advances ·Daisuke Iida,Pavel Kirilenko,Martin Velazquez‐Rizo,Zhe Zhuang,T L Lin Alex,Kazuhiro Ohkawa	2022	44
9	Passivation of Surface States in GaN by NiO Particles Crystals ·Martin Velazquez‐Rizo,Pavel Kirilenko,Daisuke Iida,Zhe Zhuang,Kazuhiro Ohkawa	2022	2
10	606-nm InGaN Amber Micro-Light-Emitting Diodes With an On-Wafer External Quantum Efficiency of 0.56% IEEE Electron Device Letters ·Zhe Zhuang,Daisuke Iida,Martin Velazquez‐Rizo,Kazuhiro Ohkawa	2021	46
11	Atomistic origin of compositional pulling effect in wurtzite (B, Al, In)xGa1−xN: A first-principles study Journal of Applied Physics ·Hiroshi Mizuseki,Stefan Eckelmann,Melvin John F. Empizo,Nobuhiko Sarukura,Yoshiyuki Kawazoe,Kazuhiro Ohkawa	2021	11
12	630-nm red InGaN micro-light-emitting diodes (<20 μm × 20 μm) exceeding 1 mW/mm² for full-color micro-displays Photonics Research ·Zhe Zhuang,Daisuke Iida,Martin Velazquez‐Rizo,Kazuhiro Ohkawa	2021	41
13	Demonstration of low forward voltage InGaN-based red LEDs Applied Physics Express ·Daisuke Iida,Zhe Zhuang,Pavel Kirilenko,Martin Velazquez‐Rizo,Kazuhiro Ohkawa	2020	67
14	Optimal ITO transparent conductive layers for InGaN-based amber/red light-emitting diodes Optics Express ·Zhe Zhuang,Daisuke Iida,Pavel Kirilenko,Martin Velazquez‐Rizo,Kazuhiro Ohkawa	2020	34
15	633-nm InGaN-based red LEDs grown on thick underlying GaN layers with reduced in-plane residual stress Applied Physics Letters ·Daisuke Iida,Zhe Zhuang,Pavel Kirilenko,Martin Velazquez‐Rizo,T L Lin Alex,Kazuhiro Ohkawa	2020	119
16	Energy transport analysis in a Ga0.84In0.16N/GaN heterostructure using microscopic Raman images employing simultaneous coaxial irradiation of two lasers Applied Physics Letters ·F. Bugno,Gavin Betts,A Pinci,Bei Ma,Ken Morita,Daisuke Iida,Kazuhiro Ohkawa,Yoshihiro Ishitani	2020	9
17	Boron influence on bandgap and photoluminescence in BGaN grown on AlN Journal of Applied Physics ·Kevin Gunawan,Daisuke Iida,一祥西,J. Serafińczuk,R. Szukiewicz,R. Kudrawiec,D. Hommel,Kazuhiro Ohkawa	2020	10
18	Photoelectrochemical H ₂ generation from water using a CoO _x /GaN photoelectrode Japanese Journal of Applied Physics ·Martin Velazquez‐Rizo,Daisuke Iida,Kazuhiro Ohkawa	2019	3
19	The effect of plane orientation on indium incorporation into InGaN/GaN quantum wells fabricated by MOVPE Journal of Crystal Growth ·解东光,末松加奈,爱群,Hideki Hayashi,Tom Yntema,K. Kurihara,Ryuichi Hasegawa,Kazuhiro Ohkawa	2015	23
20	CO₂ Conversion with Light and Water by GaN Photoelectrode (Special Issue : Solid State Devices and Materials (1)) Japanese Journal of Applied Physics ·Satoshi Yotsuhashi,Masahiro Deguchi,Yuji Zenitani,Reiko Hinogami,Hiroshi Hashiba,Yuka Yamada,Kazuhiro Ohkawa	2012	1

About Kazuhiro Ohkawa

Kazuhiro Ohkawa is a scholar working on Condensed Matter Physics, Electronic, Optical and Magnetic Materials and Atomic and Molecular Physics, and Optics, having authored 199 papers that have together received 4.0k indexed citations. Recurring topics across this work include GaN-based semiconductor devices and materials (113 papers), Semiconductor Quantum Structures and Devices (75 papers), Ga2O3 and related materials (68 papers), ZnO doping and properties (60 papers), Quantum Dots Synthesis And Properties (27 papers), Advanced Photocatalysis Techniques (26 papers), Metal and Thin Film Mechanics (25 papers) and Chalcogenide Semiconductor Thin Films (18 papers). The work is most often cited by research in Condensed Matter Physics (2.0k citations), Electronic, Optical and Magnetic Materials (1.3k citations) and Materials Chemistry (2.3k citations). Kazuhiro Ohkawa has collaborated with scholars based in Japan, Saudi Arabia and Germany. Frequent co-authors include Tsuneo Mitsuyu, Daisuke Iida, Zhe Zhuang, T. Karasawa, Katsushi Fujii, Osamu Yamazaki, Kazuhide Kusakabe, Martin Velazquez‐Rizo, Akira Hirako and Pavel Kirilenko. Their work appears in journals such as Japanese Journal of Applied Physics, Journal of Crystal Growth, Applied Physics Letters, Journal of Applied Physics and Applied Physics Express.

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