T. Sumita

1.1k total citations
26 papers, 910 citations indexed

About

T. Sumita is a scholar working on Electrical and Electronic Engineering, Materials Chemistry and Renewable Energy, Sustainability and the Environment. According to data from OpenAlex, T. Sumita has authored 26 papers receiving a total of 910 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Electrical and Electronic Engineering, 12 papers in Materials Chemistry and 9 papers in Renewable Energy, Sustainability and the Environment. Recurrent topics in T. Sumita's work include solar cell performance optimization (11 papers), Silicon and Solar Cell Technologies (9 papers) and Electronic and Structural Properties of Oxides (7 papers). T. Sumita is often cited by papers focused on solar cell performance optimization (11 papers), Silicon and Solar Cell Technologies (9 papers) and Electronic and Structural Properties of Oxides (7 papers). T. Sumita collaborates with scholars based in Japan and United States. T. Sumita's co-authors include Shunya Yamamoto, Tetsuya Yamaki, A. Miyashita, T. Umebayashi, Shojiro Tanaka, Keisuke Asai, H. Naramoto, H. Itoh, Mitsuru Imaizumi and Takeshi Ohshima and has published in prestigious journals such as Journal of Applied Physics, Journal of Physics Condensed Matter and Thin Solid Films.

In The Last Decade

T. Sumita

24 papers receiving 880 citations

Peers

T. Sumita

RESE

EEE

EOMM

Sudhakar Shet United States

Hsuan‐Fu Yu Taiwan

Chunfang Zhang China

Hengyi Wu China

Xudong Zhang China

S.A. Mayén-Hernández Mexico

L. Fedorenko Ukraine

Athanasios A. Papaderakis Greece

Jason R. Avila United States

Xianwei Zeng China

Sudhakar Shet United States

T. Sumita

492 ×0.8

RESE

740 ×1.2

327 ×1.1

EEE

41 ×0.6

206 ×3.6

EOMM

Citations per year, relative to T. Sumita T. Sumita (= 1×) peers Sudhakar Shet

Countries citing papers authored by T. Sumita

Since Specialization

Citations

This map shows the geographic impact of T. Sumita'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 T. Sumita with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites T. Sumita more than expected).

Fields of papers citing papers by T. Sumita

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of T. Sumita

This figure shows the co-authorship network connecting the top 25 collaborators of T. Sumita. A scholar is included among the top collaborators of T. Sumita 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 T. Sumita. T. Sumita 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

Imaizumi, Mitsuru, Sumio Matsuda, Shirou Kawakita, et al.. (2005). Activity and current status of R&D on space solar cells in Japan. Progress in Photovoltaics Research and Applications. 13(6). 529–543. 25 indexed citations

Sumita, T., et al.. (2005). Terrestrial solar cells in space [radiation tolerance]. 206. 130–136. 1 indexed citations

Ohshima, Takeshi, T. Sumita, Mitsuru Imaizumi, Shirou Kawakita, & Kazunori Shimazaki. (2005). Evaluation of the electrical characteristics of III-V compounds solar cells irradiated with protons at low temperature. 806–809. 8 indexed citations

Sumita, T., Mitsuru Imaizumi, Shirou Kawakita, et al.. (2004). Analysis of radiation effects in space for terrestrial solar cells on MDS-1. 85. 11–16. 2 indexed citations

Sumita, T., Mitsuru Imaizumi, Shirou Kawakita, et al.. (2004). Terrestrial Solar Cells in Space.

Yamaguchi, Masafumi, et al.. (2004). Radiation-resistant and high-efficiency InGaP/InGaAs/Ge 3-junction solar cells. 189–190. 2 indexed citations

Sumita, T., Mitsuru Imaizumi, Sumio Matsuda, et al.. (2003). Analysis of end-of-life performance for proton-irradiated triple-junction space solar cell. 3rd World Conference onPhotovoltaic Energy Conversion, 2003. Proceedings of. 1. 689–692. 5 indexed citations

Imaizumi, Mitsuru, Tatsuya Takamoto, T. Sumita, et al.. (2003). Study of radiation response on single-junction component sub-cells in triple-junction solar cells. 3rd World Conference onPhotovoltaic Energy Conversion, 2003. Proceedings of. 1. 599–602. 13 indexed citations

Matsuda, Sumio, et al.. (2003). Radiation effects in space on solar cells developed for terrestrial use demonstrated by MDS-1. 3rd World Conference onPhotovoltaic Energy Conversion, 2003. Proceedings of. 1. 642–645. 3 indexed citations

10.

Umebayashi, T., Tetsuya Yamaki, Shunya Yamamoto, et al.. (2003). Sulfur-doping of rutile-titanium dioxide by ion implantation: Photocurrent spectroscopy and first-principles band calculation studies. Journal of Applied Physics. 93(9). 5156–5160. 277 indexed citations

11.

Kawakita, Shirou, Mitsuru Imaizumi, T. Sumita, et al.. (2003). Super radiation tolerance of CIGS solar cells demonstrated in space by MDS-1 satellite. 1. 693–696. 14 indexed citations

12.

Sumita, T., Tetsuya Yamaki, Shunya Yamamoto, & A. Miyashita. (2003). Ion beam modification of photo-induced charge separation in TiO2 films. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms. 206. 245–248. 5 indexed citations

13.

Choi, Young Woo, et al.. (2003). Influence of carbon-ion irradiation and hydrogen-plasma treatment on photocatalytic properties of titanium dioxide films. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms. 206. 241–244. 5 indexed citations

14.

Umebayashi, T., Tetsuya Yamaki, T. Sumita, et al.. (2003). UV-ray photoelectron and ab initio band calculation studies on electronic structures of Cr- or Nb-ion implanted titanium dioxide. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms. 206. 264–267. 21 indexed citations

15.

Yamaki, Tetsuya, T. Sumita, & Shunya Yamamoto. (2002). Formation of TiO2−xF x compounds in fluorine-implanted TiO2. Journal of Materials Science Letters. 21(1). 33–35. 80 indexed citations

16.

Yamaki, Tetsuya, T. Sumita, Shunya Yamamoto, & A. Miyashita. (2002). Preparation of epitaxial TiO2 films by PLD for photocatalyst applications. Journal of Crystal Growth. 237-239. 574–579. 38 indexed citations

17.

Yamamoto, Shunya, T. Sumita, Tetsuya Yamaki, A. Miyashita, & H. Naramoto. (2002). Characterization of epitaxial TiO2 films prepared by pulsed laser deposition. Journal of Crystal Growth. 237-239. 569–573. 50 indexed citations

18.

Sugiharto, Sugiharto, Shunya Yamamoto, T. Sumita, & A. Miyashita. (2001). Preparation of TiO₂-anatase film on Si(001) substrate with TiN and SrTiO₃as buffer layers. Journal of Physics Condensed Matter. 13(13). 2875–2881. 14 indexed citations

19.

Miyashita, Kiyoshi, et al.. (2001). Spectrum response of the vacuum-deposited SiO2/TiO2 multilayer film with improved photo-catalytic activity. Journal of Materials Science Letters. 20(23). 2137–2140. 9 indexed citations

20.

Sumita, T., et al.. (1991). Analysis of planing motion with Japanese plane. The Japanese Journal of Ergonomics. 27(Supplement). 154–155.

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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