Shigeki Naka

2.4k total citations
138 papers, 2.0k citations indexed

About

Shigeki Naka is a scholar working on Electrical and Electronic Engineering, Polymers and Plastics and Materials Chemistry. According to data from OpenAlex, Shigeki Naka has authored 138 papers receiving a total of 2.0k indexed citations (citations by other indexed papers that have themselves been cited), including 135 papers in Electrical and Electronic Engineering, 49 papers in Polymers and Plastics and 21 papers in Materials Chemistry. Recurrent topics in Shigeki Naka's work include Organic Electronics and Photovoltaics (104 papers), Organic Light-Emitting Diodes Research (94 papers) and Conducting polymers and applications (49 papers). Shigeki Naka is often cited by papers focused on Organic Electronics and Photovoltaics (104 papers), Organic Light-Emitting Diodes Research (94 papers) and Conducting polymers and applications (49 papers). Shigeki Naka collaborates with scholars based in Japan, China and Malaysia. Shigeki Naka's co-authors include Hiroyuki Okada, Hiroyoshi Onnagawa, Zhao‐Kui Wang, Tetsuo Tsutsui, Yanhui Lou, Yoshihisa Yamaguchi, Mir Waqas Alam, Masahiro Morimoto, Liang‐Sheng Liao and Masahiro Hiramoto and has published in prestigious journals such as Nature Communications, The Journal of Chemical Physics and Applied Physics Letters.

In The Last Decade

Shigeki Naka

131 papers receiving 2.0k citations

Peers

Shigeki Naka

EEE

EOMM

Frank Jaiser Germany

Xue-Yin Jiang China

Robert Steyrleuthner Germany

Guy O. Ngongang Ndjawa Saudi Arabia

Daniel Kasemann Germany

Johannes Widmer Germany

Martin Schwarze Germany

Jan Blochwitz Germany

Joachim Vollbrecht Germany

Marlus Koehler Brazil

Frank Jaiser Germany

Shigeki Naka

1.3k ×0.7

EEE

953 ×1.1

386 ×0.7

142 ×1.1

45 ×0.5

EOMM

Citations per year, relative to Shigeki Naka Shigeki Naka (= 1×) peers Frank Jaiser

Countries citing papers authored by Shigeki Naka

Since Specialization

Citations

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

Fields of papers citing papers by Shigeki Naka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Shigeki Naka

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

Morimoto, Masahiro, et al.. (2025). Improved Freedom of Material Selection for Exciplex Upconversion-Type Organic Light-Emitting Diodes by Controlling Energy Transfer at the Donor/Acceptor Interface. ACS Applied Optical Materials. 3(6). 1219–1225.

Morimoto, Masahiro, et al.. (2024). Stable driving voltage in exciplex-type OLEDs with a bilayer interface. Applied Physics Express. 17(8). 81006–81006. 1 indexed citations

Ishiyama, Tatsuya, Masahiro Morimoto, & Shigeki Naka. (2024). Molecular dynamics study of N,N′-di-n-alkyl-3,4,9,10-perylenetetracarboxylic diimide (PTCDI)/rubrene interface: Why the charge transfer at the interface is optimized depending on the alkyl chain length of PTCDI. The Journal of Chemical Physics. 161(16). 1 indexed citations

Morimoto, Masahiro, et al.. (2023). Influence of Introduction of an Exciton Capture Layer in the Donor on the Performance of Exciplex Upconversion‐Type Organic Light‐Emitting Diodes. physica status solidi (a). 220(24). 3 indexed citations

Izawa, Seiichiro, Masahiro Morimoto, Keisuke Fujimoto, et al.. (2023). Blue organic light-emitting diode with a turn-on voltage of 1.47 V. Nature Communications. 14(1). 5494–5494. 35 indexed citations

Izawa, Seiichiro, Masahiro Morimoto, Shigeki Naka, & Masahiro Hiramoto. (2022). Efficient Interfacial Upconversion Enabling Bright Emission at an Extremely Low Driving Voltage in Organic Light‐Emitting Diodes. Advanced Optical Materials. 10(4). 30 indexed citations

Izawa, Seiichiro, Masahiro Morimoto, Shigeki Naka, & Masahiro Hiramoto. (2022). Spatial distribution of triplet excitons formed from charge transfer states at the donor/acceptor interface. Journal of Materials Chemistry A. 10(37). 19935–19940. 11 indexed citations

Morimoto, Masahiro, et al.. (2021). Carrier Mobilities in Amorphous Organic Semiconductor Films Prepared at Various Film Formation Processes. physica status solidi (a). 218(19). 2 indexed citations

Morimoto, Masahiro, et al.. (2021). Additive color mixing of semitransparent laminated tandem type polymer light-emitting diodes. Molecular Crystals and Liquid Crystals. 729(1). 78–84. 1 indexed citations

10.

Okada, Hiroyuki & Shigeki Naka. (2020). Mixed single-layer and self-alignment technology of organic light-emitting diodes and multi-functional integration in organic devices. Japanese Journal of Applied Physics. 59(SO). SO0802–SO0802. 2 indexed citations

11.

Morimoto, Masahiro, et al.. (2019). Characteristics of electron injection at the oxide electrode/polyethylenimine ethoxylated/Alq ₃ interface. Japanese Journal of Applied Physics. 59(SD). SDDC03–SDDC03. 2 indexed citations

12.

Hossain, Md. Faruk, Hiroyuki Okada, & Shigeki Naka. (2017). Investigation of photovoltaic performance of perovskite solar cells with α-NPD and electron-beam evaporated TiO 2 photoelectrode. 219–222. 1 indexed citations

13.

Fujikake, Hideo, Takahiro Ishinabe, Masahiro Baba, et al.. (2015). ITE Review 2015 Series (2); Research Trend on Information Display Technology. The Journal of The Institute of Image Information and Television Engineers. 69(3). 234–247. 1 indexed citations

14.

Naka, Shigeki, et al.. (2015). Synthesis and polymerization of phenylacetylene having two carbazole units and properties of the formed polymer. Journal of Polymer Science Part A Polymer Chemistry. 53(10). 1245–1251. 5 indexed citations

15.

Takada, Eiji, Akihiro Inoue, Hideyuki Imai, et al.. (2009). Application of a heterojunction organic photodiode to radiation measurement. 352. 1295–1299. 2 indexed citations

16.

Naka, Shigeki, et al.. (2008). Surface Roughness of Organic Semiconductor Superlattice Using Pentacene as Semiconductor. Japanese Journal of Applied Physics. 47(1S). 438–438. 3 indexed citations

17.

Shimada, Hiroyuki, et al.. (2006). Organic Multifunction Diodes Operable for Emission and Photodetection Modes. Japanese Journal of Applied Physics. 45(4S). 3750–3750. 15 indexed citations

18.

Naka, Shigeki, et al.. (2002). Circuit Simulation of Organic Electroluminescent Devices. IEICE Transactions on Electronics. 85(11). 1946. 1 indexed citations

19.

Naka, Shigeki, et al.. (2000). Circuit simulation of organic electroluminescent devices. 99(597). 1–6. 1 indexed citations

20.

Naka, Shigeki, Hiroyuki Okada, Hiroshi Anada, et al.. (1997). White Organic Electroluminescent Devices with Mixed Single Layer. IEICE Transactions on Electronics. 80(8). 1114–1116. 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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