Akiya Karen

582 total citations
16 papers, 467 citations indexed

About

Akiya Karen is a scholar working on Electrical and Electronic Engineering, Materials Chemistry and Physical and Theoretical Chemistry. According to data from OpenAlex, Akiya Karen has authored 16 papers receiving a total of 467 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Electrical and Electronic Engineering, 6 papers in Materials Chemistry and 5 papers in Physical and Theoretical Chemistry. Recurrent topics in Akiya Karen's work include Photochemistry and Electron Transfer Studies (5 papers), Porphyrin and Phthalocyanine Chemistry (4 papers) and Ion-surface interactions and analysis (3 papers). Akiya Karen is often cited by papers focused on Photochemistry and Electron Transfer Studies (5 papers), Porphyrin and Phthalocyanine Chemistry (4 papers) and Ion-surface interactions and analysis (3 papers). Akiya Karen collaborates with scholars based in Japan, United States and Canada. Akiya Karen's co-authors include Noboru Mataga, Tadashi Okada, Soichi Misumi, Fumio Tanaka, Yoshiteru Sakata, Masatoshi Yanagida, Neeti Tripathi, Yasuhiro Shirai, Kenjiro Miyano and Noriaki Ikeda and has published in prestigious journals such as Journal of the American Chemical Society, The Journal of Physical Chemistry and ACS Applied Materials & Interfaces.

In The Last Decade

Akiya Karen

16 papers receiving 451 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Akiya Karen Japan 10 239 216 168 154 56 16 467
Larry Takiff United States 10 98 0.4× 133 0.6× 281 1.7× 88 0.6× 202 3.6× 12 467
Alexander Heck Germany 8 150 0.6× 153 0.7× 73 0.4× 328 2.1× 193 3.4× 9 524
Leonard J. Andrews United States 10 177 0.7× 153 0.7× 89 0.5× 127 0.8× 93 1.7× 14 442
Lijun Guo United States 9 203 0.8× 171 0.8× 251 1.5× 79 0.5× 109 1.9× 11 574
Jens T. Törring Germany 10 84 0.4× 70 0.3× 136 0.8× 82 0.5× 80 1.4× 10 382
Brian S. Leigh United States 8 107 0.4× 105 0.5× 185 1.1× 178 1.2× 76 1.4× 11 485
Miroslav Dvořák Czechia 13 254 1.1× 61 0.3× 54 0.3× 236 1.5× 133 2.4× 42 578
Caitriona Creely United Kingdom 10 175 0.7× 96 0.4× 174 1.0× 161 1.0× 99 1.8× 20 640
Teng‐Shuo Zhang China 11 146 0.6× 127 0.6× 83 0.5× 75 0.5× 91 1.6× 37 331
Stephanie L. Gould United States 9 271 1.1× 134 0.6× 100 0.6× 64 0.4× 32 0.6× 15 496

Countries citing papers authored by Akiya Karen

Since Specialization
Citations

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

Fields of papers citing papers by Akiya Karen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Akiya Karen

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

All Works

16 of 16 papers shown
1.
Tripathi, Neeti, Yasuhiro Shirai, Masatoshi Yanagida, Akiya Karen, & Kenjiro Miyano. (2016). Novel Surface Passivation Technique for Low-Temperature Solution-Processed Perovskite PV Cells. ACS Applied Materials & Interfaces. 8(7). 4644–4650. 80 indexed citations
2.
Karen, Akiya, Kimihiko Ito, & Yoshimi Kubo. (2014). TOF-SIMS Analysis of Lithium Reaction Products on Electrodes of Lithium Air Batteries. e-Journal of Surface Science and Nanotechnology. 12(0). 75–78. 4 indexed citations
3.
Karen, Akiya, Kimihiko Ito, & Yoshimi Kubo. (2014). TOF‐SIMS analysis of lithium air battery discharge products utilizing gas cluster ion beam sputtering for surface stabilization. Surface and Interface Analysis. 46(S1). 344–347. 9 indexed citations
4.
Karen, Akiya, et al.. (2012). Industrial standardization and quantification of the carrier concentration in semiconductor devices using electric SPM. Journal of Surface Analysis. 19(2). 76–80. 3 indexed citations
5.
Inoue, Koji, Hisashi Takamizawa, Jun Kato, et al.. (2011). Three-Dimensional Elemental Analysis of Commercial 45 nm Node Device with High-$k$/Metal Gate Stack by Atom Probe Tomography. Applied Physics Express. 4(11). 116601–116601. 7 indexed citations
6.
Aoyagi, Satoka, et al.. (2008). Evaluation of oriented lysozyme immobilized with monoclonal antibody. Applied Surface Science. 255(4). 1096–1099. 2 indexed citations
7.
Hasegawa, Takahiro, et al.. (2004). Study on change in SIMS intensities near the interface between silicon-nitride film and silicon substrate. Applied Surface Science. 231-232. 725–728. 4 indexed citations
8.
Karen, Akiya, et al.. (2002). TOF-SIMS characterization of industrial materials: from silicon wafer to polymer. Applied Surface Science. 203-204. 541–546. 8 indexed citations
9.
Karen, Akiya, et al.. (1987). DYNAMICS OF EXCITED FLAVOPROTEINS—PICOSECOND LASER PHOTOLYSIS STUDIES. Photochemistry and Photobiology. 45(1). 49–53. 61 indexed citations
10.
Sakata, Yoshiteru, Soichi Misumi, Alan R. McIntosh, et al.. (1985). Synthesis of a model compound for the photosynthetic electron transfer. Tetrahedron Letters. 26(42). 5207–5210. 26 indexed citations
11.
12.
Mataga, Noboru, et al.. (1984). Role of solvation in the ultrafast nonradiative deactivation of porphyrin-quinone exciplex systems. Picosecond laser photolysis studies. Journal of the American Chemical Society. 106(8). 2442–2443. 22 indexed citations
13.
Mataga, Noboru, et al.. (1984). Picosecond dynamics of photochemical electron transfer in porphyrin-quinone intramolecular exciplex systems. The Journal of Physical Chemistry. 88(22). 5138–5141. 47 indexed citations
14.
Sakata, Yoshiteru, et al.. (1983). A new model for the study of multistep electron transfer in photosynthesis. Journal of the American Chemical Society. 105(26). 7771–7772. 89 indexed citations
15.
Karen, Akiya, Noriaki Ikeda, Noboru Mataga, & Fumio Tanaka. (1983). PICOSECOND LASER PHOTOLYSIS STUDIES OF FLUORESCENCE QUENCHING MECHANISMS OF FLAVIN: A DIRECT OBSERVATION OF INDOLE‐FLAVIN SINGLET CHARGE TRANSFER STATE FORMATION IN SOLUTIONS and FLAVOENZYMES. Photochemistry and Photobiology. 37(5). 495–502. 52 indexed citations
16.
Masuhara, Hiroshi, Hiroshi Miyasaka, Akiya Karen, et al.. (1983). Temporal characteristics of picosecond continuum as revealed by a two-dimensional analysis of streak images. Optics Communications. 44(6). 426–429. 24 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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