Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (873,690 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 1
Hin-Lap Yip 葉軒立)
perovskite solar cells
perovskite LEDs
organic solar cells
organic electronics
Metrics
H-Index
i10 Index
Citation
108
276
46,417
* Rankings
Ranking Based On Selection: 3
Yun Hau Ng 吴永豪
Photoelectrochemistry
Photochemistry
Photocatalysis
solar water splitting
solar energy
Metrics
H-Index
i10 Index
Citation
76
212
29,096
* Rankings
Ranking Based On Selection: 5
Walid Daoud
Energy Harvesting
Smart Wearable Technologies
Metrics
H-Index
i10 Index
Citation
59
130
10,505
* Rankings
Ranking Based On Selection: 6
Nallapaneni Manoj Kumar
Energy Systems
Digital Circular Economy
Sustainability & Resilience
Techno-economic Analysis
Metrics
H-Index
i10 Index
Citation
53
151
9,181
* Rankings
Ranking Based On Selection: 8
Sun Yongjun
Urban renewable energy application
Coordinated demand response control for smart grid
Data center liquid cooling
Metrics
H-Index
i10 Index
Citation
45
103
6,156
* Rankings
Ranking Based On Selection: 9
Kf Fong
Renewable cooling and heating
Sustainable trigeneration
Zero carbon building design
Indoor environmental quality
Evolutionar
Metrics
H-Index
i10 Index
Citation
45
88
7,636
* Rankings
Ranking Based On Selection: 10
Patrick KH Lee
Environmental engineering
microbiology
microbiome
microbial ecology
biotechnology
Metrics
H-Index
i10 Index
Citation
42
89
6,508

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Rankings
Ranking Based On Selection: 11
Chi Yan Tso
Energy Engineering
Built Environment
Thermal Management
Energy Efficient Buildings
Metrics
H-Index
i10 Index
Citation
39
70
4,698
* Rankings
Ranking Based On Selection: 12
Shauhrat S Chopra
Industrial Ecology
Sustainability and Resilience Indicators
Dynamic LCA of Emerging Technologies
Sustainable Food Service Sys
Metrics
H-Index
i10 Index
Citation
38
65
4,498
* Rankings
Ranking Based On Selection: 13
Sam Hsien Yi Hsu
Energy Engineering
Environmental Engineering
Photonic Engineering
Metrics
H-Index
i10 Index
Citation
37
97
4,064
* Rankings
Ranking Based On Selection: 16
Jiapeng Liu
Energy Storage Materials
Density Function Theory
Machine Learning
Solid State Electrochemistry
Metrics
H-Index
i10 Index
Citation
34
49
3,398
* Rankings
Ranking Based On Selection: 22
Zhongming Huang
Photothermal conversion
Raman detection
Solar technology
Metrics
H-Index
i10 Index
Citation
28
34
2,173
* Rankings
Ranking Based On Selection: 23
Lam Chun Ho Jason|Chun Ho Lam, JCH Lam, CH Lam
Electrocatalytic
Hydrogenation
Hydrogenolysis
Biomass Upgrading
Renewable Fuel
Metrics
H-Index
i10 Index
Citation
27
44
3,162
* Rankings
Ranking Based On Selection: 24
Yuan Xu
Public policy
Energy transition
Carbon neutrality
Metrics
H-Index
i10 Index
Citation
26
47
2,246
* Rankings
Ranking Based On Selection: 25
Laurence L Delina
energy studies
climate policy
sustainable development
energy policy
international development
Metrics
H-Index
i10 Index
Citation
23
37
1,697
* Rankings
Ranking Based On Selection: 26
Menglin Li
perovskite solar cells
device physics
quantum dots
Metrics
H-Index
i10 Index
Citation
22
24
1,955
* Rankings
Ranking Based On Selection: 27
Lingyun Wang (王凌云)
Soft electronics
Iontronics
Nanogenerators
Smart sensors
Metrics
H-Index
i10 Index
Citation
22
24
2,392
* Rankings
Ranking Based On Selection: 33
Ka Chung Chan
Energy
Environment
Indoor Air Quality
Heat and Mass Transfer
HVAC
Metrics
H-Index
i10 Index
Citation
18
23
1,392
* Rankings
Ranking Based On Selection: 34
Qi Bao
energy storage
corrosion
biofouling
electrochemistry
water treatment
Metrics
H-Index
i10 Index
Citation
14
16
1,152
* Rankings
Ranking Based On Selection: 35
Farooq R Siddiqui
HVACR
Desalination
Renewable Energy
Nanofluids
Electronic Cooling
Metrics
H-Index
i10 Index
Citation
13
13
753
Su Zhang
Organic Solar Cell
Solar Energy
Renewable Energy
Metrics
H-Index
i10 Index
Citation
2
2
137
Rankings
Ranking Based On Selection: 1
Hin-Lap Yip 葉軒立)
Metrics
H-Index
i10 Index
Citation Counts
108
276
46,417
perovskite solar cells
perovskite LEDs
organic solar cells
organic electronics
Rankings
Ranking Based On Selection: 2
Zonglong Zhu
Metrics
H-Index
i10 Index
Citation Counts
77
143
19,212
Rankings
Ranking Based On Selection: 3
Yun Hau Ng 吴永豪
Metrics
H-Index
i10 Index
Citation Counts
76
212
29,096
Photoelectrochemistry
Photochemistry
Photocatalysis
solar water splitting
solar energy
Rankings
Ranking Based On Selection: 4
Zhaodong Huang
Metrics
H-Index
i10 Index
Citation Counts
68
118
14,209
Rankings
Ranking Based On Selection: 5
Walid Daoud
Metrics
H-Index
i10 Index
Citation Counts
59
130
10,505
Rankings
Ranking Based On Selection: 6
Nallapaneni Manoj Kumar
Metrics
H-Index
i10 Index
Citation Counts
53
151
9,181
Energy Systems
Digital Circular Economy
Sustainability & Resilience
Techno-economic Analysis
Rankings
Ranking Based On Selection: 7
Denis Yw Yu
Metrics
H-Index
i10 Index
Citation Counts
46
99
7,981
Rankings
Ranking Based On Selection: 8
Sun Yongjun
Metrics
H-Index
i10 Index
Citation Counts
45
103
6,156
Urban renewable energy application
Coordinated demand response control for smart grid
Data center liquid cooling
Rankings
Ranking Based On Selection: 9
Kf Fong
Metrics
H-Index
i10 Index
Citation Counts
45
88
7,636
Renewable cooling and heating
Sustainable trigeneration
Zero carbon building design
Indoor environmental quality
Evolutionar
Rankings
Ranking Based On Selection: 10
Patrick KH Lee
Metrics
H-Index
i10 Index
Citation Counts
42
89
6,508
Environmental engineering
microbiology
microbiome
microbial ecology
biotechnology

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

Rankings
Ranking Based On Selection: 11
Chi Yan Tso
Metrics
H-Index
i10 Index
Citation Counts
39
70
4,698
Energy Engineering
Built Environment
Thermal Management
Energy Efficient Buildings
Rankings
Ranking Based On Selection: 12
Shauhrat S Chopra
Metrics
H-Index
i10 Index
Citation Counts
38
65
4,498
Industrial Ecology
Sustainability and Resilience Indicators
Dynamic LCA of Emerging Technologies
Sustainable Food Service Sys
Rankings
Ranking Based On Selection: 13
Sam Hsien Yi Hsu
Metrics
H-Index
i10 Index
Citation Counts
37
97
4,064
Energy Engineering
Environmental Engineering
Photonic Engineering
Rankings
Ranking Based On Selection: 14
Xiaoli Zheng
Metrics
H-Index
i10 Index
Citation Counts
36
65
5,153
Rankings
Ranking Based On Selection: 16
Jiapeng Liu
Metrics
H-Index
i10 Index
Citation Counts
34
49
3,398
Energy Storage Materials
Density Function Theory
Machine Learning
Solid State Electrochemistry
Rankings
Ranking Based On Selection: 17
Yu Zheng
Metrics
H-Index
i10 Index
Citation Counts
31
55
4,620
Rankings
Ranking Based On Selection: 18
Guijun Li
Metrics
H-Index
i10 Index
Citation Counts
31
61
2,677
Rankings
Ranking Based On Selection: 19
Fucong Lyu Lv 吕富聪
Metrics
H-Index
i10 Index
Citation Counts
29
48
3,273
Rankings
Ranking Based On Selection: 20
Qinglan Zhao
Metrics
H-Index
i10 Index
Citation Counts
29
45
2,306
Rankings
Ranking Based On Selection: 21
Jingwen Zhou 周静雯|Zhou Jingwen, Jingwen Zhou
Metrics
H-Index
i10 Index
Citation Counts
28
41
3,818
Energy storage and conversion
Nanomaterials
Electrochemistry
Rankings
Ranking Based On Selection: 22
Zhongming Huang
Metrics
H-Index
i10 Index
Citation Counts
28
34
2,173
Photothermal conversion
Raman detection
Solar technology
Rankings
Ranking Based On Selection: 23
Lam Chun Ho Jason|Chun Ho Lam, JCH Lam, CH Lam
Metrics
H-Index
i10 Index
Citation Counts
27
44
3,162
Electrocatalytic
Hydrogenation
Hydrogenolysis
Biomass Upgrading
Renewable Fuel
Rankings
Ranking Based On Selection: 24
Yuan Xu
Metrics
H-Index
i10 Index
Citation Counts
26
47
2,246
Public policy
Energy transition
Carbon neutrality
Rankings
Ranking Based On Selection: 25
Laurence L Delina
Metrics
H-Index
i10 Index
Citation Counts
23
37
1,697
energy studies
climate policy
sustainable development
energy policy
international development
Rankings
Ranking Based On Selection: 26
Menglin Li
Metrics
H-Index
i10 Index
Citation Counts
22
24
1,955
perovskite solar cells
device physics
quantum dots
Rankings
Ranking Based On Selection: 27
Lingyun Wang (王凌云)
Metrics
H-Index
i10 Index
Citation Counts
22
24
2,392
Soft electronics
Iontronics
Nanogenerators
Smart sensors
Rankings
Ranking Based On Selection: 28
Xiaoguang Liang
Metrics
H-Index
i10 Index
Citation Counts
22
36
2,188
Rankings
Ranking Based On Selection: 29
Xiaobing Cao
Metrics
H-Index
i10 Index
Citation Counts
21
26
1,235
Rankings
Ranking Based On Selection: 30
Mingzhu Long
Metrics
H-Index
i10 Index
Citation Counts
21
25
3,029
Rankings
Ranking Based On Selection: 31
Yang Li
Metrics
H-Index
i10 Index
Citation Counts
20
25
2,791
Rankings
Ranking Based On Selection: 32
Lam King Hang
Metrics
H-Index
i10 Index
Citation Counts
19
26
1,282
Rankings
Ranking Based On Selection: 33
Ka Chung Chan
Metrics
H-Index
i10 Index
Citation Counts
18
23
1,392
Energy
Environment
Indoor Air Quality
Heat and Mass Transfer
HVAC
Rankings
Ranking Based On Selection: 34
Qi Bao
Metrics
H-Index
i10 Index
Citation Counts
14
16
1,152
energy storage
corrosion
biofouling
electrochemistry
water treatment
Rankings
Ranking Based On Selection: 35
Farooq R Siddiqui
Metrics
H-Index
i10 Index
Citation Counts
13
13
753
HVACR
Desalination
Renewable Energy
Nanofluids
Electronic Cooling
Rankings
Ranking Based On Selection: 36
Chih Chun Chung Willy
Metrics
H-Index
i10 Index
Citation Counts
12
12
904
Solar cells
Materials
perovskites
energy harvesting
Rankings
Ranking Based On Selection: 37
Yelin Zhang
Metrics
H-Index
i10 Index
Citation Counts
10
10
494
Rankings
Ranking Based On Selection: 38
Danni Lan
Metrics
H-Index
i10 Index
Citation Counts
9
9
516
Rankings
Ranking Based On Selection: 39
Jian He
Metrics
H-Index
i10 Index
Citation Counts
9
9
434
Rankings
Ranking Based On Selection: 40
Su Zhang
Metrics
H-Index
i10 Index
Citation Counts
2
2
137