Ryuji Oshima

2.0k total citations
106 papers, 1.6k citations indexed

About

Ryuji Oshima is a scholar working on Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics and Materials Chemistry. According to data from OpenAlex, Ryuji Oshima has authored 106 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 83 papers in Electrical and Electronic Engineering, 68 papers in Atomic and Molecular Physics, and Optics and 35 papers in Materials Chemistry. Recurrent topics in Ryuji Oshima's work include Semiconductor Quantum Structures and Devices (61 papers), solar cell performance optimization (49 papers) and Chalcogenide Semiconductor Thin Films (42 papers). Ryuji Oshima is often cited by papers focused on Semiconductor Quantum Structures and Devices (61 papers), solar cell performance optimization (49 papers) and Chalcogenide Semiconductor Thin Films (42 papers). Ryuji Oshima collaborates with scholars based in Japan, Germany and United States. Ryuji Oshima's co-authors include Yoshitaka Okada, Ayami Takata, Takeyoshi Sugaya, Yasushi Shoji, Kikuo Makita, Koji Matsubara, Hidemi Shigekawa, Shigeru Niki, Tomoya Inoue and Takashi Kita and has published in prestigious journals such as Physical Review Letters, SHILAP Revista de lepidopterología and Energy & Environmental Science.

In The Last Decade

Ryuji Oshima

101 papers receiving 1.6k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ryuji Oshima Japan 18 1.2k 1.1k 750 392 100 106 1.6k
Simone Assali Canada 20 980 0.8× 668 0.6× 605 0.8× 749 1.9× 99 1.0× 62 1.5k
N. Pauc France 22 1.3k 1.1× 623 0.6× 433 0.6× 650 1.7× 54 0.5× 87 1.6k
Gregory M. Rutter United States 13 570 0.5× 1.0k 0.9× 1.8k 2.4× 293 0.7× 52 0.5× 18 2.0k
L. Largeau France 21 1.1k 0.9× 859 0.8× 519 0.7× 210 0.5× 253 2.5× 55 1.3k
Kunal Mukherjee United States 17 795 0.7× 611 0.6× 291 0.4× 111 0.3× 49 0.5× 59 1.0k
H. I. Jørgensen Denmark 14 707 0.6× 897 0.8× 541 0.7× 761 1.9× 423 4.2× 20 1.5k
B. Salem France 22 1.3k 1.1× 752 0.7× 649 0.9× 707 1.8× 107 1.1× 148 1.6k
Felix Fromm Germany 19 525 0.4× 645 0.6× 1.2k 1.6× 310 0.8× 43 0.4× 28 1.5k
K. Hiruma Japan 14 785 0.7× 495 0.5× 607 0.8× 848 2.2× 94 0.9× 30 1.3k
Aron W. Cummings Spain 24 509 0.4× 889 0.8× 1.4k 1.8× 235 0.6× 53 0.5× 61 1.6k

Countries citing papers authored by Ryuji Oshima

Since Specialization
Citations

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

Fields of papers citing papers by Ryuji Oshima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryuji Oshima

This figure shows the co-authorship network connecting the top 25 collaborators of Ryuji Oshima. A scholar is included among the top collaborators of Ryuji Oshima 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 Ryuji Oshima. Ryuji Oshima 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.
Oshima, Ryuji, Κ. Yoshihara, Tsukasa Akasaka, et al.. (2025). Pharmacokinetics and the effectiveness of pyrogen-free bioabsorbable wet adhesives. Scientific Reports. 15(1). 20056–20056. 1 indexed citations
2.
3.
Oshima, Ryuji, T. Sasaki, Hidenori Okuzaki, et al.. (2023). Effect of Interfacial Oxide Layers on Self-Doped PEDOT/Si Hybrid Solar Cells. Energies. 16(19). 6900–6900. 1 indexed citations
4.
Sasaki, T., et al.. (2023). Effect of Film Morphology on Electrical Conductivity of PEDOT:PSS. Nanomaterials. 14(1). 95–95. 6 indexed citations
5.
Shoji, Yasushi, Ryuji Oshima, Kikuo Makita, Akinori Ubukata, & Takeyoshi Sugaya. (2023). 1.5 eV GaInAsP Solar Cells Grown via Hydride Vapor‐Phase Epitaxy for Low‐Cost GaInP/GaInAsP//Si Triple‐Junction Structures. Advanced Energy and Sustainability Research. 4(5).
6.
Makita, Kikuo, Yukiko Kamikawa, Takashi Koida, et al.. (2022). Mechanical stacked GaAs//CuIn1−yGaySe2three‐junction solar cells with 30% efficiency via an improved bonding interface and area current‐matching technique. Progress in Photovoltaics Research and Applications. 31(1). 71–84. 15 indexed citations
7.
Makita, Kikuo, Hidenori Mizuno, Hitoshi Sai, et al.. (2022). GaAs//Si Multijunction Solar Cells Fabricated via Mechanical Stack Technology Using Pd Nanoparticles and Metal-Assisted Chemical Etching. IEEE Journal of Photovoltaics. 13(1). 105–112. 1 indexed citations
8.
Makita, Kikuo, Yukiko Kamikawa, Hidenori Mizuno, et al.. (2021). GaAs//CuIn1−yGaySe2 Three-Junction Solar Cells With 28.06% Efficiency Fabricated Using a Bonding Technique Involving Pd Nanoparticles and an Adhesive. IEEE Journal of Photovoltaics. 12(2). 639–645. 7 indexed citations
9.
Makita, Kikuo, Yukiko Kamikawa, Hidenori Mizuno, et al.. (2021). III‐V//CuxIn1−yGaySe2 multijunction solar cells with 27.2% efficiency fabricated using modified smart stack technology with Pd nanoparticle array and adhesive material. Progress in Photovoltaics Research and Applications. 29(8). 887–898. 30 indexed citations
10.
Shoji, Yasushi, Ryuji Oshima, Kikuo Makita, Akinori Ubukata, & Takeyoshi Sugaya. (2021). InGaP/GaAs dual‐junction solar cells with AlInGaP passivation layer grown by hydride vapor phase epitaxy. Progress in Photovoltaics Research and Applications. 29(12). 1285–1293. 9 indexed citations
11.
Tayagaki, Takeshi, Ryuji Oshima, Yasushi Shoji, et al.. (2020). Analysis of subcell open-circuit voltages of InGaP/GaAs dual-junction solar cells fabricated using hydride vapor phase epitaxy. Japanese Journal of Applied Physics. 59(SG). SGGF02–SGGF02. 3 indexed citations
12.
Makita, Kikuo, Hidenori Mizuno, Takeshi Tayagaki, et al.. (2019). III‐V//Si multijunction solar cells with 30% efficiency using smart stack technology with Pd nanoparticle array. Progress in Photovoltaics Research and Applications. 28(1). 16–24. 46 indexed citations
13.
Tayagaki, Takeshi, et al.. (2018). Analysis of luminescence coupling effect in three-terminal tandem solar cells. Journal of Photonics for Energy. 8(4). 1–1. 8 indexed citations
14.
Sugaya, Takeyoshi, Kikuo Makita, Hidenori Mizuno, et al.. (2015). InGaP/GaAs/InGaAsP triple junction solar cells grown using solid-source molecular beam epitaxy. Journal of Crystal Growth. 425. 322–325. 9 indexed citations
15.
Yoshida, Shoji, Yuta Aizawa, Zihan Wang, et al.. (2014). Probing ultrafast spin dynamics with optical pump–probe scanning tunnelling microscopy. Nature Nanotechnology. 9(8). 588–593. 78 indexed citations
16.
Yoshida, Shoji, Yasuhiko Terada, Ryuji Oshima, Osamu Takeuchi, & Hidemi Shigekawa. (2012). Nanoscale probing of transient carrier dynamics modulated in a GaAs–PIN junction by laser-combined scanning tunneling microscopy. Nanoscale. 4(3). 757–757. 24 indexed citations
17.
Shoji, Yasushi, Ryuji Oshima, Ayami Takata, & Yoshitaka Okada. (2009). The effect of spacer layer thickness on vertical alignment of InGaAs/GaNAs quantum dots grown on GaAs(311)B substrate. Physica E Low-dimensional Systems and Nanostructures. 42(10). 2768–2771. 9 indexed citations
18.
Yoshida, Shoji, et al.. (2007). Microscopic Basis for the Mechanism of Carrier Dynamics in an Operatingp−nJunction Examined by Using Light-Modulated Scanning Tunneling Spectroscopy. Physical Review Letters. 98(2). 26802–26802. 38 indexed citations
19.
Oshima, Ryuji, Hiroshi Nakano, Masafumi Katayama, et al.. (2007). Modification of the Hepatic Mitochondrial Proteome in Response to Ischemic Preconditioning following Ischemia-Reperfusion Injury of the Rat Liver. European Surgical Research. 40(3). 247–255. 1 indexed citations
20.
Oshima, Ryuji, Kouichi Akahane, Masahiro Tsuchiya, Hidemi Shigekawa, & Yoshitaka Okada. (2007). Optical properties of stacked InAs self-organized quantum dots on InP (311)B. Journal of Crystal Growth. 301-302. 776–780. 11 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Simone Assali Breakdown of academic impact, for papers by N. Pauc Breakdown of academic impact, for papers by Gregory M. Rutter Breakdown of academic impact, for papers by L. Largeau Breakdown of academic impact, for papers by Kunal Mukherjee Breakdown of academic impact, for papers by H. I. Jørgensen Breakdown of academic impact, for papers by B. Salem Breakdown of academic impact, for papers by Felix Fromm Breakdown of academic impact, for papers by K. Hiruma Breakdown of academic impact, for papers by Aron W. Cummings
Rankless by CCL
2026