Citation Rankings
Highly Cited Researchers

California Institute of Technology Caltech Highly Cited Researchers CitationEngineering & Technology / Energy Engineering Rankings 2025

Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation IndexUniversities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025

* Total Citation Counts Rankings
Ranking Based On Selection :1
United States
Jen Kan Yu
renewable energy
thermoelectrics
nanotechnology
organic light emitting diode
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,263
2,373
0.327
* Total Citation Counts Rankings
Ranking Based On Selection :2
United States
Jonathan Grandidier
Photovoltaics
Solar Arrays
Power Systems for Space Applications
Plasmonics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,021
508
0.251
* Total Citation Counts Rankings
Ranking Based On Selection :3
United States
Joeson Wong
Nanotechnology
Quantum Information
Photovoltaics
Condensed Matter Physics
Photonics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,555
1,402
0.902
* Total Citation Counts Rankings
Rankings
136,927
United States
52,364
175
Ranking Based On Selection: 1
Jen Kan Yu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,263
2,373
0.327
renewable energy
thermoelectrics
nanotechnology
organic light emitting diode
* Total Citation Counts Rankings
Rankings
427,478
United States
136,765
339
Ranking Based On Selection: 2
Jonathan Grandidier
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,021
508
0.251
Photovoltaics
Solar Arrays
Power Systems for Space Applications
Plasmonics
* Total Citation Counts Rankings
Rankings
512,102
United States
159,407
380
Ranking Based On Selection: 3
Joeson Wong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,555
1,402
0.902
Nanotechnology
Quantum Information
Photovoltaics
Condensed Matter Physics
Photonics