World Scientist and University Rankings 2025
World Natural Sciences 64.674 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Feb 01, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (870.053) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
Metrics
H-Index
i10 Index
Citation Counts
268
2,054
281,401
* Total H IndexRankings
Ranking Based On Selection: 2
Photocatalysis
Metrics
H-Index
i10 Index
Citation Counts
236
801
206,713
* Total H IndexRankings
Ranking Based On Selection: 3
Metrics
H-Index
i10 Index
Citation Counts
216
510
206,060
* Total H IndexRankings
Ranking Based On Selection: 4
chemistry
materials science
physics
nanotechnology
Metrics
H-Index
i10 Index
Citation Counts
214
529
259,812
* Total H IndexRankings
Ranking Based On Selection: 5
Chemistry
Polymers
Polymer Chemistry
Polymer Science
Materials
Metrics
H-Index
i10 Index
Citation Counts
214
1,401
203,327
* Total H IndexRankings
Ranking Based On Selection: 6
Chemistry
Metrics
H-Index
i10 Index
Citation Counts
212
705
190,501
* Total H IndexRankings
Ranking Based On Selection: 7
Mass Spectrometry
Proteomics
Metrics
H-Index
i10 Index
Citation Counts
210
993
183,067
* Total H IndexRankings
Ranking Based On Selection: 8
molecular imaging
nanomedicine
drug and gene delivery
theranostics
radiopharmaceuticals
Metrics
H-Index
i10 Index
Citation Counts
206
1,016
155,561
* Total H IndexRankings
Ranking Based On Selection: 9
Electrocatalysis
quantum dots
perovskites
CO2 capture
Reactive capture
Metrics
H-Index
i10 Index
Citation Counts
205
845
170,086
* Total H IndexRankings
Ranking Based On Selection: 10
Nanotechnology
Metrics
H-Index
i10 Index
Citation Counts
204
964
201,817
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* Total H IndexRankings
Ranking Based On Selection: 11
Aggregation-Induced Emission
Functional Polymers
Sensing and Imaging
Room Temperature Phosphorescence
Clusteroluminescence
Metrics
H-Index
i10 Index
Citation Counts
202
2,025
214,737
* Total H IndexRankings
Ranking Based On Selection: 12
organic synthesis
organometallic chemistry
catalysis
asymmetric catalysis
flow chemistry
Metrics
H-Index
i10 Index
Citation Counts
202
671
135,145
* Total H IndexRankings
Ranking Based On Selection: 13
Chemistry
Environmental Engineering
Chemical Engg
Metrics
H-Index
i10 Index
Citation Counts
201
908
140,089
* Total H IndexRankings
Ranking Based On Selection: 14
Chemistry
Physics
Computation
Metrics
H-Index
i10 Index
Citation Counts
199
1,409
244,355
* Total H IndexRankings
Ranking Based On Selection: 15
Chemistry and Chemical engineering
Metrics
H-Index
i10 Index
Citation Counts
197
793
144,794
* Total H IndexRankings
Ranking Based On Selection: 16
theory
materials
catalysis
nanotechnology
drug design
Metrics
H-Index
i10 Index
Citation Counts
196
1,446
199,976
* Total H IndexRankings
Ranking Based On Selection: 17
Metrics
H-Index
i10 Index
Citation Counts
195
1,358
197,382
* Total H IndexRankings
Ranking Based On Selection: 18
Reticular Chemistry
Metal-Organic Framework
Covalent Organic Framework
Metrics
H-Index
i10 Index
Citation Counts
193
412
258,647
* Total H IndexRankings
Ranking Based On Selection: 19
Physical Chemistry
Quantum Mechanics
Quantum Field Theory
Vibration/Rotation Spectroscopy
Nanomedicine
Metrics
H-Index
i10 Index
Citation Counts
192
409
137,205
* Total H IndexRankings
Ranking Based On Selection: 20
Metrics
H-Index
i10 Index
Citation Counts
192
431
199,588
* Total H IndexRankings
Ranking Based On Selection: 21
environmental organic chemistry
environmental sciences
Metrics
H-Index
i10 Index
Citation Counts
191
1,529
164,114
* Total H IndexRankings
Ranking Based On Selection: 22
photocatalysis
Metrics
H-Index
i10 Index
Citation Counts
185
1,516
237,871
* Total H IndexRankings
Ranking Based On Selection: 23
Inorganic Chemistry
Nanochemistry (无机化学，纳米化学）
Metrics
H-Index
i10 Index
Citation Counts
183
746
116,789
* Total H IndexRankings
Ranking Based On Selection: 24
Chemistry
materials
carbon materials
Metrics
H-Index
i10 Index
Citation Counts
182
556
274,634
* Total H IndexRankings
Ranking Based On Selection: 25
solar cells
photoelectrochemistry
solar fuel
dye-sensitized
perovskite solar cells
Metrics
H-Index
i10 Index
Citation Counts
179
630
148,231
Jun Chen
Nankai University
Tianjin, China
Metrics
H-Index
i10-Index
Citation Counts
268
2,054
281,401
Jiaguo Yu
Metrics
H-Index
i10-Index
Citation Counts
236
801
206,713
Peidong Yang
Metrics
H-Index
i10-Index
Citation Counts
216
510
206,060
Hongjie Dai
Stanford University
Stanford, United States
Metrics
H-Index
i10-Index
Citation Counts
214
529
259,812
chemistry
materials science
physics
nanotechnology
Krzysztof Matyjaszewski
Carnegie Mellon University
Pittsburgh, United States
Metrics
H-Index
i10-Index
Citation Counts
214
1,401
203,327
Chemistry
Polymers
Polymer Chemistry
Polymer Science
Materials
George Church
Harvard University
Cambridge, United States
Metrics
H-Index
i10-Index
Citation Counts
212
705
190,501
John Yates
Scripps Research Institute
La Jolla, United States
Metrics
H-Index
i10-Index
Citation Counts
210
993
183,067
Xiaoyuan Shawn Chen
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
206
1,016
155,561
molecular imaging
nanomedicine
drug and gene delivery
theranostics
radiopharmaceuticals
Edward Sargent
University of Toronto
Toronto, Canada
Metrics
H-Index
i10-Index
Citation Counts
205
845
170,086
Electrocatalysis
quantum dots
perovskites
CO2 capture
Reactive capture
Chad Mirkin
Northwestern University
Evanston, United States
Metrics
H-Index
i10-Index
Citation Counts
204
964
201,817
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Ben Zhong Tang
Metrics
H-Index
i10-Index
Citation Counts
202
2,025
214,737
Aggregation-Induced Emission
Functional Polymers
Sensing and Imaging
Room Temperature Phosphorescence
Clusteroluminescence
Stephen L Buchwald
Metrics
H-Index
i10-Index
Citation Counts
202
671
135,145
organic synthesis
organometallic chemistry
catalysis
asymmetric catalysis
flow chemistry
Vinod Kumar Gupta
Metrics
H-Index
i10-Index
Citation Counts
201
908
140,089
Chemistry
Environmental Engineering
Chemical Engg
Donald Truhlar
University of Minnesota Twin Cities
Minneapolis, United States
Metrics
H-Index
i10-Index
Citation Counts
199
1,409
244,355
Jean Frechet
Metrics
H-Index
i10-Index
Citation Counts
197
793
144,794
Chemistry and Chemical engineering
William A Goddard
Metrics
H-Index
i10-Index
Citation Counts
196
1,446
199,976
theory
materials
catalysis
nanotechnology
drug design
Avelino Corma Canos
Universitat Politècnica de València
Valencia, Spain
Metrics
H-Index
i10-Index
Citation Counts
195
1,358
197,382
Omar M Yaghi
Metrics
H-Index
i10-Index
Citation Counts
193
412
258,647
Reticular Chemistry
Metal-Organic Framework
Covalent Organic Framework
Yu-Hung Chen 陳毓宏
National Cheng Kung University
Tainan City, Taiwan
Metrics
H-Index
i10-Index
Citation Counts
192
409
137,205
Physical Chemistry
Quantum Mechanics
Quantum Field Theory
Vibration/Rotation Spectroscopy
Nanomedicine
Paul Alivisatos
Metrics
H-Index
i10-Index
Citation Counts
192
431
199,588
Damià Barceló
Metrics
H-Index
i10-Index
Citation Counts
191
1,529
164,114
environmental organic chemistry
environmental sciences
Zhi LIU 刘智
Wuhan University
Wuhan, China
Metrics
H-Index
i10-Index
Citation Counts
185
1,516
237,871
Shu Hong Yu
Metrics
H-Index
i10-Index
Citation Counts
183
746
116,789
Inorganic Chemistry
Nanochemistry (无机化学，纳米化学）
Rodney Ruoff
Metrics
H-Index
i10-Index
Citation Counts
182
556
274,634
Chemistry
materials
carbon materials
Anders Hagfeldt
Metrics
H-Index
i10-Index
Citation Counts
179
630
148,231
solar cells
photoelectrochemistry
solar fuel
dye-sensitized
perovskite solar cells