Koshi Okamura

419 total citations
20 papers, 377 citations indexed

About

Koshi Okamura is a scholar working on Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics and Materials Chemistry. According to data from OpenAlex, Koshi Okamura has authored 20 papers receiving a total of 377 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Electrical and Electronic Engineering, 9 papers in Atomic and Molecular Physics, and Optics and 7 papers in Materials Chemistry. Recurrent topics in Koshi Okamura's work include Semiconductor materials and devices (6 papers), Thin-Film Transistor Technologies (6 papers) and Molecular Junctions and Nanostructures (5 papers). Koshi Okamura is often cited by papers focused on Semiconductor materials and devices (6 papers), Thin-Film Transistor Technologies (6 papers) and Molecular Junctions and Nanostructures (5 papers). Koshi Okamura collaborates with scholars based in Japan, Germany and United States. Koshi Okamura's co-authors include Horst Hahn, Norman Mechau, Babak Nasr, Richard A. Brand, Michio Niwano, Yasuo Kimura, Hisao Ishii, Yoshinobu Hosoi, Masakazu Nakamura and Nobuo Ueno and has published in prestigious journals such as Applied Physics Letters, Journal of Applied Physics and Journal of Materials Chemistry.

In The Last Decade

Koshi Okamura

19 papers receiving 372 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Koshi Okamura Japan 9 328 273 67 62 39 20 377
Cleber A. Amorim Brazil 7 249 0.8× 147 0.5× 78 1.2× 96 1.5× 25 0.6× 19 319
A. Jolene Mork United States 6 269 0.8× 254 0.9× 74 1.1× 39 0.6× 31 0.8× 6 369
Tobias W. Canzler Germany 9 395 1.2× 137 0.5× 95 1.4× 83 1.3× 40 1.0× 22 439
Joohee Bang South Korea 3 169 0.5× 164 0.6× 39 0.6× 88 1.4× 17 0.4× 3 264
Zdeňka Hájková Czechia 7 360 1.1× 290 1.1× 92 1.4× 40 0.6× 38 1.0× 11 422
Hye‐Yong Chu South Korea 11 389 1.2× 229 0.8× 115 1.7× 62 1.0× 20 0.5× 30 447
Gregory Tainter Germany 8 482 1.5× 304 1.1× 154 2.3× 51 0.8× 16 0.4× 9 526
Gary Zaiats United States 10 372 1.1× 373 1.4× 37 0.6× 45 0.7× 30 0.8× 12 444
Tzu‐Hung Yeh Taiwan 13 468 1.4× 316 1.2× 105 1.6× 69 1.1× 14 0.4× 18 536
L. H. Smith United Kingdom 5 276 0.8× 107 0.4× 36 0.5× 93 1.5× 46 1.2× 5 337

Countries citing papers authored by Koshi Okamura

Since Specialization
Citations

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

Fields of papers citing papers by Koshi Okamura

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koshi Okamura

This figure shows the co-authorship network connecting the top 25 collaborators of Koshi Okamura. A scholar is included among the top collaborators of Koshi Okamura 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 Koshi Okamura. Koshi Okamura is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Okamura, Koshi. (2025). Rashba effect originates from the reduction of point-group symmetries. Physical Chemistry Chemical Physics. 27(6). 3138–3149.
2.
Okamura, Koshi. (2023). Bloch state constrained by spatial and time-reversal symmetries. Journal of Physics A Mathematical and Theoretical. 56(33). 335003–335003. 2 indexed citations
3.
Okamura, Koshi. (2021). Spin-dependent electron–radiation interaction. Journal of Physics Condensed Matter. 33(28). 285501–285501. 2 indexed citations
4.
Okamura, Koshi. (2020). Focus on the overlap density of wavefunctions inGWapproximations. Physical Chemistry Chemical Physics. 22(9). 5366–5376. 2 indexed citations
5.
Okamura, Koshi, Simone Dehm, & Horst Hahn. (2013). Metal-semiconductor hybrid thin films in field-effect transistors. Applied Physics Letters. 103(25). 2 indexed citations
6.
7.
Okamura, Koshi, Babak Nasr, Richard A. Brand, & Horst Hahn. (2012). Solution-processed oxide semiconductor SnO in p-channel thin-film transistors. Journal of Materials Chemistry. 22(11). 4607–4607. 109 indexed citations
8.
Okamura, Koshi & Horst Hahn. (2012). Potential distribution in channel of thin-film transistors. Applied Physics Letters. 101(1). 3 indexed citations
9.
Okamura, Koshi, et al.. (2010). Application of capacitance–voltage measurements to the determination of interface roughness in nanoparticulate field‐effect transistors. physica status solidi (a). 207(7). 1672–1676. 3 indexed citations
10.
Okamura, Koshi & Horst Hahn. (2010). Carrier transport in nanocrystalline field-effect transistors: Impact of interface roughness and geometrical carrier trap. Applied Physics Letters. 97(15). 153114–153114. 18 indexed citations
11.
Okamura, Koshi, et al.. (2010). Polymer stabilized ZnO nanoparticles for low-temperature and solution-processed field-effect transistors. Journal of Materials Chemistry. 20(27). 5651–5651. 22 indexed citations
12.
Okamura, Koshi, et al.. (2009). Appropriate choice of channel ratio in thin-film transistors for the exact determination of field-effect mobility. Applied Physics Letters. 94(18). 68 indexed citations
13.
Okamura, Koshi, Tomoki Sueyoshi, Takashi Miyamoto, et al.. (2009). Vertical electrical conduction in pentacene polycrystalline thin films mediated by Au-induced gap states at grain boundaries. Applied Physics A. 95(1). 225–232. 21 indexed citations
14.
Okamura, Koshi, et al.. (2008). Influence of interface roughness on the performance of nanoparticulate zinc oxide field-effect transistors. Applied Physics Letters. 93(8). 63 indexed citations
15.
Hosoi, Yoshinobu, Koshi Okamura, Yasuo Kimura, Hisao Ishii, & Michio Niwano. (2005). Infrared spectroscopy of pentacene thin film on SiO2 surface. Applied Surface Science. 244(1-4). 607–610. 35 indexed citations
16.
Okamura, Koshi, Hisao Ishii, Yasuo Kimura, & Michio Niwano. (2004). Adsorption of naphthalene on a Si(1 0 0)-2 × 1 surface investigated by infrared spectroscopy. Surface Science. 576(1-3). 45–55. 10 indexed citations
17.
Okamura, Koshi, et al.. (2004). Adsorption of cata-condensed aromatics on a Si(100)–2 × 1 surface investigated by infrared absorption spectroscopy. Applied Surface Science. 237(1-4). 440–444. 6 indexed citations
18.
Okamura, Koshi, et al.. (2004). Adsorption of cata-condensed aromatics on a Si(100)–2 × 1 surface investigated by infrared absorption spectroscopy. Applied Surface Science. 237(1-4). 440–444. 1 indexed citations
19.
Okamura, Koshi, et al.. (2003). Infrared Spectroscopy Study of Adsorption of Naphthalene on a Si(100)-2*1 Surface. Hyomen Kagaku. 24(9). 543–549. 1 indexed citations
20.
Azumi, T., et al.. (1965). Atom-atom correlation order and its relation to the molecular properties. Theoretical Chemistry Accounts. 3(3). 254–260. 1 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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