Norihiko Kamata

3.8k total citations · 1 hit paper
171 papers, 3.3k citations indexed

About

Norihiko Kamata is a scholar working on Electrical and Electronic Engineering, Materials Chemistry and Condensed Matter Physics. According to data from OpenAlex, Norihiko Kamata has authored 171 papers receiving a total of 3.3k indexed citations (citations by other indexed papers that have themselves been cited), including 86 papers in Electrical and Electronic Engineering, 63 papers in Materials Chemistry and 59 papers in Condensed Matter Physics. Recurrent topics in Norihiko Kamata's work include GaN-based semiconductor devices and materials (53 papers), Ga2O3 and related materials (36 papers) and Semiconductor Quantum Structures and Devices (33 papers). Norihiko Kamata is often cited by papers focused on GaN-based semiconductor devices and materials (53 papers), Ga2O3 and related materials (36 papers) and Semiconductor Quantum Structures and Devices (33 papers). Norihiko Kamata collaborates with scholars based in Japan, Bangladesh and United Kingdom. Norihiko Kamata's co-authors include Hideki Hirayama, Sachie Fujikawa, Norimichi Noguchi, Noritoshi Maeda, Tohru Yatabe, Shiro Toyoda, T. Fukuda, Takayoshi Takano, Kenji Tsubaki and Jun Norimatsu and has published in prestigious journals such as Applied Physics Letters, Journal of Applied Physics and Scientific Reports.

In The Last Decade

Norihiko Kamata

164 papers receiving 3.2k citations

Hit Papers

1 papers align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Recent progress and future prospects of AlGaN-based high-efficiency deep-ultraviolet light-emitting diodes

2014 469 citations Hideki Hirayama, Noritoshi Maeda et al. Japanese Journal of Applied Physics profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Norihiko Kamata Japan	25	2.1k	1.5k	1.4k	1.1k	918	171	3.3k
Vanya Darakchieva Sweden	34	1.6k 0.8×	1.9k 1.2×	3.2k 2.3×	1.8k 1.6×	988 1.1×	188	4.9k
F. Sandiumenge Spain	33	2.7k 1.2×	1.7k 1.1×	2.3k 1.6×	553 0.5×	713 0.8×	157	4.4k
Ronny Kirste United States	35	2.5k 1.1×	1.6k 1.1×	1.5k 1.1×	1.5k 1.3×	938 1.0×	146	3.7k
S. B. Ogale India	33	1.4k 0.7×	1.8k 1.2×	2.2k 1.6×	798 0.7×	552 0.6×	128	3.7k
R. D. Vispute United States	29	1.2k 0.5×	1.8k 1.2×	3.2k 2.3×	2.1k 1.9×	540 0.6×	115	4.3k
M. E. Hawley United States	27	1.3k 0.6×	2.4k 1.5×	3.0k 2.1×	1.0k 0.9×	643 0.7×	94	4.2k
S. J. Chua Singapore	32	1.3k 0.6×	1.2k 0.8×	2.3k 1.6×	2.1k 1.9×	615 0.7×	174	3.7k
Akihiro Wakahara Japan	27	1.3k 0.6×	839 0.6×	2.0k 1.4×	2.0k 1.8×	456 0.5×	211	3.4k
F. Rivadulla Spain	35	2.7k 1.3×	3.4k 2.3×	2.4k 1.7×	559 0.5×	300 0.3×	152	4.7k
C. Terzioğlu Türkiye	29	2.0k 0.9×	1.2k 0.8×	787 0.6×	256 0.2×	721 0.8×	165	2.7k

Countries citing papers authored by Norihiko Kamata

Since Specialization

Citations

This map shows the geographic impact of Norihiko Kamata'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 Norihiko Kamata with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Norihiko Kamata more than expected).

Fields of papers citing papers by Norihiko Kamata

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Norihiko Kamata. 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 Norihiko Kamata. The network helps show where Norihiko Kamata may publish in the future.

Co-authorship network of co-authors of Norihiko Kamata

This figure shows the co-authorship network connecting the top 25 collaborators of Norihiko Kamata. A scholar is included among the top collaborators of Norihiko Kamata based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Norihiko Kamata. Norihiko Kamata is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Kamata, Norihiko, et al.. (2019). Nonradiative recombination centers in deep UV-wavelength AlGaN quantum wells detected by below-gap excitation light. Japanese Journal of Applied Physics. 58(SC). SCCB37–SCCB37. 4 indexed citations

Jo, Masafumi, et al.. (2019). Influence of the nucleation conditions on the quality of AlN layers with high-temperature annealing and regrowth processes. Japanese Journal of Applied Physics. 58(SC). SC1056–SC1056. 15 indexed citations

Khan, M. Ajmal, Takuma Matsumoto, Noritoshi Maeda, Norihiko Kamata, & Hideki Hirayama. (2018). Improved external quantum efficiency of 293 nm AlGaN UVB LED grown on an AlN template. Japanese Journal of Applied Physics. 58(SA). SAAF01–SAAF01. 30 indexed citations

Kamata, Norihiko, et al.. (2018). Study of Nonradiative Recombination Centers in n-GaN Grown on LT-GaN and AlN Buffer Layer by Below-Gap Excitation. Advances in Materials Physics and Chemistry. 8(3). 143–155. 2 indexed citations

Kamata, Norihiko, et al.. (2017). Impedance Spectroscopy for Annealing-Induced Change of Molybdenum Oxide in Organic Photovoltaic Cell. Advances in Materials Physics and Chemistry. 7(8). 323–333. 1 indexed citations

Fukuda, T., et al.. (2017). Influence of annealing temperature for ZnO layer on photoconversion efficiency of organic devices. Molecular Crystals and Liquid Crystals. 653(1). 182–187.

Liao, Yingjie, T. Fukuda, & Norihiko Kamata. (2016). Improved Morphology of Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate) Thin Films for All-Electrospray-Coated Organic Photovoltaic Cells. Advances in Materials Science and Engineering. 2016. 1–8. 3 indexed citations

Li, Tingting, et al.. (2015). Trap and nonradiative centers in Ba_3Si_6O_12N_2:Eu^2+ phosphors observed by thermoluminescence and two-wavelength excited photoluminescence methods. Optics Express. 23(13). 16511–16511. 2 indexed citations

Kamata, Norihiko, et al.. (2014). Nonradiative centers in deep‐UV AlGaN‐based quantum wells revealed by two‐wavelength excited photoluminescence. physica status solidi (b). 252(5). 936–939. 9 indexed citations

10.

Fukuda, T., et al.. (2012). Solution-Processed Green-Sensitive Organic Photoconductive Device Using Rhodamine 6G. Molecular Crystals and Liquid Crystals. 566(1). 67–74. 6 indexed citations

11.

Fukuda, T., Takashi Suzuki, Ryohei Kobayashi, Zentaro Honda, & Norihiko Kamata. (2009). Organic photoconductive device fabricated by electrospray deposition method. Thin Solid Films. 518(2). 575–578. 34 indexed citations

12.

Ogawa, Hirohisa, et al.. (2008). Laser‐induced formation of nonradiative centers observed by two‐wavelength excited photoluminescence. Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics. 5(9). 2929–2931. 3 indexed citations

13.

Watabe, Toshihisa, Satoshi Aihara, Norifumi Egami, et al.. (2005). CMOS Image Sensor Overlaid with an Organic Photoconductive Film. 105(258). 21–25. 2 indexed citations

14.

Aihara, Satoshi, Kazunori Miyakawa, Yuji Ohkawa, et al.. (2005). Photoconductive Properties of Organic Films Based on Porphine Complex Evaluated with Image Pickup Tubes. Japanese Journal of Applied Physics. 44(6R). 3743–3743. 13 indexed citations

15.

Kamata, Norihiko, et al.. (2002). Below-gap recombination dynamics in GaN revealed by time-resolved and two-wavelength excited photoluminescence. Materials Science and Engineering B. 91-92. 290–293. 7 indexed citations

16.

Kamata, Norihiko, et al.. (2001). Extremely Slow Relaxation Process of a Yellow-Luminescence-Related State in GaN Revealed by Two-Wavelength Excited Photoluminescence. physica status solidi (b). 228(2). 433–436. 3 indexed citations

17.

Aihara, Satoshi, et al.. (1999). Electroluminescence of Poly Bis(p-propoxyphenyl)Silane from Double Layer Device with 8-Hydroxyquinoline Aluminum. Optical Review. 6(5). 393–395. 4 indexed citations

18.

Uchida, Takahiro, et al.. (1998). Below-Gap Spectroscopy of Undoped GaAs/AlGaAs Quantum Wells by Two-Wavelength Excited Photoluminescence. Japanese Journal of Applied Physics. 37(6R). 3210–3210. 8 indexed citations

19.

Kamata, Norihiko, Kazunori Hoshino, Hiroaki Kimura, et al.. (1997). Sensitive detection of below-gap states by two-wavelength excitation spectroscopy in single-photon-counting region. Journal of Luminescence. 72-74. 797–798. 9 indexed citations

20.

Tonooka, Kazuhiko, Fumio Maruyama, Norihiko Kamata, Koji Yamada, & Jun Ono. (1994). Effect of back-transfer on the energy transfer in Tb3+-doped glasses. Journal of Luminescence. 62(2). 69–76. 15 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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