The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection :1
First-principles calculations
photocatalysis
oxides
defects
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,460
6,184
0.459
* Total Citation Counts Rankings
Ranking Based On Selection :2
Materials Science
Phosphor
First-principles calculation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,266
2,011
0.243
* Total Citation Counts Rankings
Ranking Based On Selection :3
Plant Biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,545
539
0.152
* Total Citation Counts Rankings
Ranking Based On Selection :4
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,694
924
0.545
* Total Citation Counts Rankings
Ranking Based On Selection :5
chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,613
514
0.319
* Total Citation Counts Rankings
Ranking Based On Selection :6
Photochemistry
Electrochemistry
Electronic devices
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,396
328
0.235
* Total Citation Counts Rankings
Ranking Based On Selection :7
organic electronics
flexible electronics
perovskite solar cells
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
603
396
0.657
* Total Citation Counts Rankings
Ranking Based On Selection :8
Water Corrosion and Prevention
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4
0
0.000
Naoto Umezawa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,460
6,184
0.459
First-principles calculations
photocatalysis
oxides
defects
Masayoshi Mikami
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,266
2,011
0.243
Materials Science
Phosphor
First-principles calculation
takahiko hayakawa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,545
539
0.152
Plant Biotechnology
Takahiro Hayashi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,694
924
0.545
Fumihiko Shimizu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,613
514
0.319
Tomoyuki Ogata
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,396
328
0.235
Photochemistry
Electrochemistry
Electronic devices
Hidenori Nakayama
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
603
396
0.657
organic electronics
flexible electronics
perovskite solar cells
Sayed Zaman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4
0
0.000