T. Yokoyama

2.7k total citations · 1 hit paper
29 papers, 2.4k citations indexed

About

T. Yokoyama is a scholar working on Electrical and Electronic Engineering, Computer Vision and Pattern Recognition and Materials Chemistry. According to data from OpenAlex, T. Yokoyama has authored 29 papers receiving a total of 2.4k indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Electrical and Electronic Engineering, 6 papers in Computer Vision and Pattern Recognition and 6 papers in Materials Chemistry. Recurrent topics in T. Yokoyama's work include Perovskite Materials and Applications (9 papers), Organic Electronics and Photovoltaics (8 papers) and Quantum Dots Synthesis And Properties (5 papers). T. Yokoyama is often cited by papers focused on Perovskite Materials and Applications (9 papers), Organic Electronics and Photovoltaics (8 papers) and Quantum Dots Synthesis And Properties (5 papers). T. Yokoyama collaborates with scholars based in Japan, United States and Taiwan. T. Yokoyama's co-authors include Mercouri G. Kanatzidis, Tze‐Bin Song, Shinji Aramaki, Constantinos C. Stoumpos, Duyen H. Cao, Jenna L. Logsdon, Michael R. Wasielewski, Yoshiharu Sato, Joseph T. Hupp and Omar K. Farha and has published in prestigious journals such as Journal of the American Chemical Society, Advanced Materials and Applied Physics Letters.

In The Last Decade

T. Yokoyama

27 papers receiving 2.3k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Importance of Reducing Vapor Atmosphere in the Fabrication of Tin-Based Perovskite Solar Cells

2016 527 citations Tze‐Bin Song, T. Yokoyama et al. Journal of the American Chemical Society profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
T. Yokoyama Japan	15	2.3k	1.3k	1.1k	94	55	29	2.4k
Beat Ruhstaller Switzerland	25	2.0k 0.9×	550 0.4×	758 0.7×	37 0.4×	162 2.9×	104	2.1k
Erh-Kun Lai Taiwan	21	1.5k 0.6×	727 0.6×	292 0.3×	114 1.2×	61 1.1×	91	1.6k
Mingming Liu China	13	859 0.4×	721 0.6×	70 0.1×	44 0.5×	129 2.3×	28	962
J. S. Bhat India	16	277 0.1×	298 0.2×	76 0.1×	73 0.8×	201 3.7×	39	587
Yunlong Liu China	12	686 0.3×	418 0.3×	121 0.1×	37 0.4×	81 1.5×	65	797
Jingsheng Huang China	9	644 0.3×	380 0.3×	133 0.1×	29 0.3×	137 2.5×	30	718
Hyunsu Ju South Korea	15	599 0.3×	251 0.2×	153 0.1×	41 0.4×	50 0.9×	37	813
A. Andreev Austria	17	853 0.4×	344 0.3×	141 0.1×	67 0.7×	309 5.6×	57	1.1k
Wei-Chou Hsu Taiwan	11	439 0.2×	115 0.1×	102 0.1×	88 0.9×	139 2.5×	47	531
Qianlan Hu China	16	804 0.4×	543 0.4×	74 0.1×	108 1.1×	65 1.2×	39	1.0k

Countries citing papers authored by T. Yokoyama

Since Specialization

Citations

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

Fields of papers citing papers by T. Yokoyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Fukasawa, Keita, Yoshihiro Nakashima, Shun Takagi, et al.. (2025). Snapshot Japan 2023: the first camera trap dataset under a globally standardised protocol in Japan. Biodiversity Data Journal. 13. e141168–e141168. 1 indexed citations

Öz, Senol, Ajay Kumar Jena, Ashish Kulkarni, et al.. (2020). Lead(II) Propionate Additive and a Dopant-Free Polymer Hole Transport Material for CsPbI₂Br Perovskite Solar Cells. ACS Energy Letters. 5(4). 1292–1299. 84 indexed citations

Cao, Duyen H., Constantinos C. Stoumpos, T. Yokoyama, et al.. (2017). Thin Films and Solar Cells Based on Semiconducting Two-Dimensional Ruddlesden–Popper (CH₃(CH₂)₃NH₃)₂(CH₃NH₃)_n−1Sn_nI_3n+1 Perovskites. ACS Energy Letters. 2(5). 982–990. 367 indexed citations

Yokoyama, T., Duyen H. Cao, Constantinos C. Stoumpos, et al.. (2016). Overcoming Short-Circuit in Lead-Free CH₃NH₃SnI₃ Perovskite Solar Cells via Kinetically Controlled Gas–Solid Reaction Film Fabrication Process. The Journal of Physical Chemistry Letters. 7(5). 776–782. 305 indexed citations

Wang, Ming, Hengbin Wang, T. Yokoyama, et al.. (2014). High Open Circuit Voltage in Regioregular Narrow Band Gap Polymer Solar Cells. Journal of the American Chemical Society. 136(36). 12576–12579. 218 indexed citations

Yoshida, Zensho, Y. Kawazura, & T. Yokoyama. (2014). Relativistic helicity and link in Minkowski space-time. Journal of Mathematical Physics. 55(4). 13 indexed citations

Yokoyama, T., et al.. (2009). Grain size increase in pentacene thin films prepared in low-pressure gas ambient. Thin Solid Films. 518(2). 507–509.

Yokoyama, T., et al.. (2008). Grain Size Increase and Field-Effect Mobility Enhancement of Pentacene Thin Films Prepared in a Low-Pressure H₂Ambient. Applied Physics Express. 1. 41801–41801. 15 indexed citations

Yokoyama, T., et al.. (2008). Threshold-Voltage-Shift Mechanism in Pentacene Field Effect Transistors Caused by Photoirradiation. Japanese Journal of Applied Physics. 47(4S). 3189–3189. 8 indexed citations

10.

Yokoyama, T., et al.. (2008). Oxygen-Related Degradation Mechanisms for On- and Off-States of Perfluoropentacene Thin-Film Transistors. Japanese Journal of Applied Physics. 47(5R). 3643–3643. 20 indexed citations

11.

Yokoyama, T., et al.. (2008). Molecular Ordering and Interface State Modification for Reducing Bias-Induced Threshold Voltage Shift in Pentacene Field-Effect Transistors. Journal of The Electrochemical Society. 155(8). H575–H575. 16 indexed citations

12.

Nakadai, Kazuhiro, et al.. (2004). Improvement of robot audition by interfacing sound source separation and automatic speech recognition with Missing Feature Theory. 38. 1517–1523 Vol.2. 27 indexed citations

13.

Yokoyama, T., Takahiro Shinozaki, Koji Iwano, & Sadaoki Furui. (2003). Unsupervised class-based language model adaptation for spontaneous speech recognition. 2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03).. 1. I–236. 9 indexed citations

14.

Yagi, Yasushi, et al.. (2003). Face identification using an omnidirectional image sequence. 1. 275–280. 1 indexed citations

15.

Yokoyama, T., Yasushi Yagi, & M. Yachida. (2002). Active contour model for extracting human faces. 1. 673–676. 6 indexed citations

16.

Mitsunaga, Tomoo, et al.. (2002). Key extraction by image differentiation. Proceedings - International Conference on Image Processing. 2. 248–251.

17.

Yokoyama, T., Yasushi Yagi, & M. Yachida. (2002). Facial contour extraction model. 27. 254–259. 5 indexed citations

18.

Dimitrova, V., A. D. Draeseke, Janet Tate, et al.. (1999). Red electroluminescence from ZnGaS:Mn thin films. Applied Physics Letters. 75(16). 2353–2355. 4 indexed citations

19.

Tachikawa, K., Seiichiro Yamamoto, T. Yokoyama, & Takaaki Kato. (1999). New high-field Nb/sub 3/Sn conductors prepared from Ta-Sn compound powder. IEEE Transactions on Applied Superconductivity. 9(2). 2500–2504. 14 indexed citations

20.

Enokizono, Masato, Takashi Todaka, & T. Yokoyama. (1993). Flux controlling method of magnetic circuit and its application. IEEE Transactions on Magnetics. 29(6). 3019–3021. 4 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