H. Uoyama

8.3k total citations · 1 hit paper
19 papers, 7.1k citations indexed

About

H. Uoyama is a scholar working on Materials Chemistry, Organic Chemistry and Pulmonary and Respiratory Medicine. According to data from OpenAlex, H. Uoyama has authored 19 papers receiving a total of 7.1k indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Materials Chemistry, 8 papers in Organic Chemistry and 3 papers in Pulmonary and Respiratory Medicine. Recurrent topics in H. Uoyama's work include Porphyrin and Phthalocyanine Chemistry (15 papers), Luminescence and Fluorescent Materials (5 papers) and Photodynamic Therapy Research Studies (3 papers). H. Uoyama is often cited by papers focused on Porphyrin and Phthalocyanine Chemistry (15 papers), Luminescence and Fluorescent Materials (5 papers) and Photodynamic Therapy Research Studies (3 papers). H. Uoyama collaborates with scholars based in Japan, South Korea and Singapore. H. Uoyama's co-authors include Kenichi Goushi, Hiroko Nomura, Katsuyuki Shizu, Chihaya Adachi, Hidemitsu Uno, Tetsuo Okujima, Hiroko Yamada, Noboru Ono, Toshi Nagata and Shigeki Mori and has published in prestigious journals such as Nature, The Journal of Physical Chemistry B and Physical Chemistry Chemical Physics.

In The Last Decade

H. Uoyama

19 papers receiving 7.0k 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.

Highly efficient organic light-emitting diodes from delayed fluorescence

2012 6.8k citations H. Uoyama, Kenichi Goushi et al. Nature profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
H. Uoyama Japan	10	5.9k	4.9k	892	832	526	19	7.1k
Przemysław Data Poland	33	4.0k 0.7×	3.5k 0.7×	871 1.0×	886 1.1×	514 1.0×	118	5.1k
Yujian You China	17	6.3k 1.1×	4.4k 0.9×	700 0.8×	1.8k 2.2×	379 0.7×	33	7.2k
Fangzhong Shen China	34	4.3k 0.7×	4.1k 0.8×	637 0.7×	1.1k 1.4×	374 0.7×	64	5.5k
Fernando B. Dias United Kingdom	50	7.2k 1.2×	6.0k 1.2×	1.1k 1.3×	1.4k 1.7×	903 1.7×	127	8.6k
Shaolong Gong China	51	7.1k 1.2×	6.2k 1.3×	1.3k 1.4×	1.3k 1.6×	315 0.6×	169	8.6k
Qiming Peng China	34	3.9k 0.6×	3.2k 0.6×	599 0.7×	712 0.9×	297 0.6×	101	4.7k
Scott P. Sibley United States	10	6.3k 1.1×	4.4k 0.9×	818 0.9×	1.8k 2.2×	337 0.6×	16	7.0k
Shuzo Hirata Japan	31	5.3k 0.9×	5.9k 1.2×	927 1.0×	545 0.7×	296 0.6×	91	7.0k
Caijun Zheng China	42	5.4k 0.9×	3.6k 0.7×	571 0.6×	1.6k 1.9×	202 0.4×	170	6.2k

Countries citing papers authored by H. Uoyama

Since Specialization

Citations

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

Fields of papers citing papers by H. Uoyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of H. Uoyama

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

All Works

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19 of 19 papers shown

Kim, Pyosang, Sujin Ham, Juwon Oh, et al.. (2013). Shape-dependent two-photon absorption in two-dimensionally extended benzoporphyrin arrays. Physical Chemistry Chemical Physics. 15(26). 10612–10612. 16 indexed citations

Tahara, Hiroyuki, Kohtaro Takahashi, Toshi Nagata, et al.. (2012). π-Fused bis-BODIPY as a candidate for NIR dyes. Organic & Biomolecular Chemistry. 10(34). 6840–6840. 86 indexed citations

Uoyama, H., Kenichi Goushi, Katsuyuki Shizu, Hiroko Nomura, & Chihaya Adachi. (2012). Highly efficient organic light-emitting diodes from delayed fluorescence. Nature. 492(7428). 234–238. 6812 indexed citations breakdown →

Uoyama, H., Shin‐ichi Nagaoka, Takahiro Nakae, et al.. (2012). Synthesis, structure and properties of ethyl naphth[2,3-f]isoindole-1-carboxylate. RSC Advances. 3(9). 3006–3006. 4 indexed citations

Uno, Hidemitsu, H. Uoyama, Hiroko Yamada, & Tetsuo Okujima. (2012). SYNTHESIS OF BIS-nAPHTHOPORPHYRINS. Heterocycles. 86(1). 515–515. 1 indexed citations

Uno, Hidemitsu, Akiko Fujimoto, H. Uoyama, et al.. (2011). Porphyrin molecular tweezers for fullerenes. Journal of Porphyrins and Phthalocyanines. 15(09n10). 951–963. 10 indexed citations

Uno, Hidemitsu, et al.. (2011). Facile Synthesis of 4,9-Dihydro-2H-benz[f]- and 4,11-Dihydro-2H-naphth[2,3-f]isoindoles and Their Utility for Porphyrin Synthesis. Heterocycles. 84(2). 829–829. 7 indexed citations

Kim, Pyosang, Jooyoung Sung, H. Uoyama, et al.. (2011). Ultrafast Intramolecular Energy Relaxation Dynamics of Benzoporphyrins: Influence of Fused Benzo Rings on Singlet Excited States. The Journal of Physical Chemistry B. 115(14). 3784–3792. 14 indexed citations

Uno, Hidemitsu, H. Uoyama, Cai Chenxin, et al.. (2010). Thermal Behavior of Bicyclo[2.2.2]octadiene-Installed Precursors for 2H-Anthra[2,3-c]pyrroles and Anthra[2,3-c]thiophene. Heterocycles. 80(2). 1187–1187. 3 indexed citations

10.

Uoyama, H., Kil Suk Kim, Jae‐Yoon Shin, et al.. (2010). Highly Pure Synthesis, Spectral Assignments, and Two‐Photon Properties of Cruciform Porphyrin Pentamers Fused with Benzene Units. Chemistry - A European Journal. 16(13). 4063–4074. 34 indexed citations

11.

Uoyama, H., Hiroko Yamada, Tetsuo Okujima, & Hidemitsu Uno. (2010). Pentacene precursors for solution-processed OFETs. Tetrahedron. 66(34). 6889–6894. 15 indexed citations

12.

Uno, Hidemitsu, et al.. (2010). Preparation of Highly Conjugated Oligoaza-PAHs Based on the Oxidative Intramolecular Coupling of Bicyclo[2.2.2]octadiene-Fused Pyrrole. Heterocycles. 82(1). 791–791. 4 indexed citations

13.

Uoyama, H., et al.. (2009). Synthesis, structures, and properties of BCOD-fused porphyrins and benzoporphyrins. Journal of Porphyrins and Phthalocyanines. 13(1). 122–135. 11 indexed citations

14.

Uoyama, H., et al.. (2009). 1-Aminoisoindole as a useful π-system elongation unit. Tetrahedron. 65(22). 4345–4350. 5 indexed citations

15.

Mack, John, Y. Shimizu, H. Uoyama, et al.. (2008). Application of MCD Spectroscopy and TD‐DFT to Nonplanar Core‐Modified Tetrabenzoporphyrins: Effect of Reduced Symmetry on Nonplanar Porphyrinoids. Chemistry - A European Journal. 14(16). 5001–5020. 46 indexed citations

16.

Uno, Hidemitsu, et al.. (2008). Preparation of 1,3,3a,7a-Tetrahydroisothianaphthene and Its Application to Tetrahydrothiophene-Fused Porphyrin. Heterocycles. 76(1). 667–667. 5 indexed citations

17.

Uno, Hidemitsu, et al.. (2007). Derivatization of Tetrafluorobenzo[c]thiophene. Preparation of Tetrafluorothiabenzoporphyrin. Heterocycles. 73(1). 673–673. 3 indexed citations

18.

Uno, Hidemitsu, et al.. (2007). Thermal Behavior of Free‐Base and Core‐Modified Bicyclo[2.2.2]octadiene‐Fused Porphyrins. European Journal of Organic Chemistry. 2008(1). 87–98. 17 indexed citations

19.

Uno, Hidemitsu, H. Uoyama, & Noboru Ono. (2007). Preparation of Biphenylene- and Benzocyclooctene-Fused Heterocycles. Heterocycles. 72(1). 363–363. 3 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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