Citation Rankings
Highly Cited Researchers
Engineering & Technology Highly Cited Researchers 6.029 Scientists Citation Rankings - 2025
The Citation Rankings (Highly Cited Researchers) list 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
Solar energy conversion
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
502,880
138,895
0.276
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Statistics
Machine Learning
Renewable Energy
Building Physics
Particle Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
208,476
59,722
0.286
* Total Citation Counts Rankings
Ranking Based On Selection: 3
solar energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
190,419
62,819
0.330
* Total Citation Counts Rankings
Ranking Based On Selection: 4
solar cells
memory
semiconductor
organic electronics
organic photovoltaics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
159,422
50,997
0.320
* Total Citation Counts Rankings
Ranking Based On Selection: 5
hollow structures
batteries
electrocatalysis
supercapacitors
photocatalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
145,955
68,836
0.472
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Photovoltaics
Semiconductors
Solar Cells
Conversion Efficiency
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
128,550
41,853
0.326
* Total Citation Counts Rankings
Ranking Based On Selection: 7
batteries
fuel cells
materials chemistry
synthesis
nanomaterials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
126,793
65,846
0.519
* Total Citation Counts Rankings
Ranking Based On Selection: 8
solar energy
photochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87,330
29,645
0.339
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Solar Cells & Solar Fuels
Artificial Photosynthesis
Water Splitting
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77,798
32,017
0.412
* Total Citation Counts Rankings
Ranking Based On Selection: 10
batteries
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,591
33,818
0.447
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Electron Microscopy
Tomography
Renewable Energy
Complex Oxides
Ptychography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,336
34,002
0.451
* Total Citation Counts Rankings
Ranking Based On Selection: 12
energy storage materials
graphene 2D materials
photonics
hybrid perovskites
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,982
26,201
0.403
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Energy storage
Li-S batteries
Lithium metal anode
Carbon nanomaterials
Fluidized bed
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,625
46,527
0.720
* Total Citation Counts Rankings
Ranking Based On Selection: 14
solar energy conversion materials (potocatalysis
photoelectrochemical
solar cells)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,717
31,696
0.514
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Energy Studies
Solar Thermal
Photovoltaics
Renewable Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,282
34,746
0.586
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Hybrid solar cells
Perovskite solar cells
Perovskites
Tin perovskite
Solar energy conversion
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,346
34,105
0.585
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Engine Combustion
bio-fuel
ragne extender
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,797
29,033
0.530
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Solar Energy Conversion and Storage
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,453
33,184
0.633
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Electrochemical Engineering
Fuel cells
Hydrogen
Electrocatalysis
Polymer Electrolytes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,150
22,918
0.466
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Solar Energy
Renewable Energy Systems
Solar Cooling
Desalination
Neural Networks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,840
21,492
0.449
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Renewable Energy
Energy Storage Systems
CAD and Design
Smart Materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,452
36,437
0.768
* Total Citation Counts Rankings
Ranking Based On Selection: 22
perovskite solar cells
perovskite LEDs
organic solar cells
organic electronics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,417
26,245
0.565
* Total Citation Counts Rankings
Ranking Based On Selection: 23
renewable energy
sustainability assessment
techno-economic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,797
28,678
0.626
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Batteries
Energy Storage
Electrochemistry
Battery Characterization
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,121
15,786
0.350
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Renewable Energy
Power Electronics
Drives
Electrical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,935
25,177
0.560
* Total Citation Counts Rankings
Rankings
28
1
1
Ranking Based On Selection: 1
Michael Graetzel
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
502,880
138,895
0.276
* Total Citation Counts Rankings
Rankings
761
14
2
Ranking Based On Selection: 2
Roberto Castello
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
208,476
59,722
0.286
Statistics
Machine Learning
Renewable Energy
Building Physics
Particle Physics
* Total Citation Counts Rankings
Rankings
933
17
4
Ranking Based On Selection: 3
Nazeeruddin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
190,419
62,819
0.330
* Total Citation Counts Rankings
Rankings
1,305
575
9
Ranking Based On Selection: 4
Yang Yang (楊陽）
University of California Los Angeles
Los Angeles, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
159,422
50,997
0.320
solar cells
memory
semiconductor
organic electronics
organic photovoltaics
* Total Citation Counts Rankings
Rankings
1,550
7
2
Ranking Based On Selection: 5
Xiong Wen David Lou
Nanyang Technological University
Jurong West, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
145,955
68,836
0.472
hollow structures
batteries
electrocatalysis
supercapacitors
photocatalysis
* Total Citation Counts Rankings
Rankings
1,976
61
8
Ranking Based On Selection: 6
Martin A Green
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
128,550
41,853
0.326
Photovoltaics
Semiconductors
Solar Cells
Conversion Efficiency
* Total Citation Counts Rankings
Rankings
2,024
928
8
Ranking Based On Selection: 7
Arumugam Manthiram
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
126,793
65,846
0.519
batteries
fuel cells
materials chemistry
synthesis
nanomaterials
* Total Citation Counts Rankings
Rankings
4,122
333
31
Ranking Based On Selection: 8
James Robert Durrant
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87,330
29,645
0.339
solar energy
photochemistry
* Total Citation Counts Rankings
Rankings
5,043
52
3
Ranking Based On Selection: 9
Licheng Sun
Royal Institute of Technology
Stockholm, Sweden
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77,798
32,017
0.412
Solar Cells & Solar Fuels
Artificial Photosynthesis
Water Splitting
* Total Citation Counts Rankings
Rankings
5,290
56
3
Ranking Based On Selection: 10
Jaephil Cho
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,591
33,818
0.447
* Total Citation Counts Rankings
Rankings
5,327
2,522
22
Ranking Based On Selection: 11
David A Muller
Cornell University
Ithaca, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,336
34,002
0.451
Electron Microscopy
Tomography
Renewable Energy
Complex Oxides
Ptychography
* Total Citation Counts Rankings
Rankings
6,760
33
11
Ranking Based On Selection: 12
Shen Ze Xiang
Nanyang Technological University
Jurong West, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,982
26,201
0.403
energy storage materials
graphene 2D materials
photonics
hybrid perovskites
* Total Citation Counts Rankings
Rankings
6,805
187
2
Ranking Based On Selection: 13
Jia-Qi Huang 黄佳琦
Beijing Institute of Technology
Beijing, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,625
46,527
0.720
Energy storage
Li-S batteries
Lithium metal anode
Carbon nanomaterials
Fluidized bed
* Total Citation Counts Rankings
Rankings
7,321
200
3
Ranking Based On Selection: 14
Gang Liu (刘岗)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,717
31,696
0.514
solar energy conversion materials (potocatalysis
photoelectrochemical
solar cells)
* Total Citation Counts Rankings
Rankings
7,798
8
1
Ranking Based On Selection: 15
Kamaruzzaman Sopian
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,282
34,746
0.586
Energy Studies
Solar Thermal
Photovoltaics
Renewable Energy
* Total Citation Counts Rankings
Rankings
7,997
323
1
Ranking Based On Selection: 16
Antonio Abate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,346
34,105
0.585
Hybrid solar cells
Perovskite solar cells
Perovskites
Tin perovskite
Solar energy conversion
* Total Citation Counts Rankings
Rankings
8,890
256
2
Ranking Based On Selection: 17
Liguang Liu
Tongji University
Shanghai, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,797
29,033
0.530
Engine Combustion
bio-fuel
ragne extender
* Total Citation Counts Rankings
Rankings
9,538
4,525
2
Ranking Based On Selection: 18
Kai Zhu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,453
33,184
0.633
Solar Energy Conversion and Storage
* Total Citation Counts Rankings
Rankings
10,533
5,004
8
Ranking Based On Selection: 19
Yushan Yan
University of Delaware
Newark, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,150
22,918
0.466
Electrochemical Engineering
Fuel cells
Hydrogen
Electrocatalysis
Polymer Electrolytes
* Total Citation Counts Rankings
Rankings
10,990
6
1
Ranking Based On Selection: 20
Soteris Kalogirou
Cyprus University of Technology
Limassol, Cyprus
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,840
21,492
0.449
Solar Energy
Renewable Energy Systems
Solar Cooling
Desalination
Neural Networks
* Total Citation Counts Rankings
Rankings
11,112
9
4
Ranking Based On Selection: 21
Abdul-Ghani Olabi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,452
36,437
0.768
Renewable Energy
Energy Storage Systems
CAD and Design
Smart Materials
* Total Citation Counts Rankings
Rankings
11,523
92
18
Ranking Based On Selection: 22
Hin-Lap Yip 葉軒立）
City University of Hong Kong
Kowloon, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,417
26,245
0.565
perovskite solar cells
perovskite LEDs
organic solar cells
organic electronics
* Total Citation Counts Rankings
Rankings
11,770
374
3
Ranking Based On Selection: 23
Liu Gang
Central South University
Changsha, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,797
28,678
0.626
renewable energy
sustainability assessment
techno-economic
* Total Citation Counts Rankings
Rankings
12,056
219
51
Ranking Based On Selection: 24
Petr Novák
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,121
15,786
0.350
Batteries
Energy Storage
Electrochemistry
Battery Characterization
* Total Citation Counts Rankings
Rankings
12,140
16
2
Ranking Based On Selection: 25
Nasrudin Abd Rahim
University of Malaya
Kuala Lumpur, Malaysia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,935
25,177
0.560
Renewable Energy
Power Electronics
Drives
Electrical Engineering