University, Subject, Country, Region, World
World 11.814 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 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 May 12, 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 (1.121.187) 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
nanogenerator
self-powered sensors/systems
blue energy
piezotronics
piezo-phototronic
Metrics
H-Index
i10 Index
Citation Counts
331
2,515
484,757
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* Total H IndexRankings
Ranking Based On Selection: 2
nanotechnology
energy
environment
2D materials
nanobi
Metrics
H-Index
i10 Index
Citation Counts
285
841
326,460
* Total H IndexRankings
Ranking Based On Selection: 3
Carbon
nanomaterials
energy storage
supercapacitors
MXen
Metrics
H-Index
i10 Index
Citation Counts
248
922
304,300
* Total H IndexRankings
Ranking Based On Selection: 4
biosensors
electrochemistry
nanomotors
modified electrodes
microfabricatio
Metrics
H-Index
i10 Index
Citation Counts
216
1,208
179,321
* Total H IndexRankings
Ranking Based On Selection: 5
Phase engineering of nanomaterials (PEN) and controlled epitaxial growth of heterostructure
Metrics
H-Index
i10 Index
Citation Counts
196
565
157,481
* Total H IndexRankings
Ranking Based On Selection: 6
Batteries
Fuel Cell
Carbon material
Fluorine material
Nanotechnolog
Metrics
H-Index
i10 Index
Citation Counts
183
775
115,366
* Total H IndexRankings
Ranking Based On Selection: 7
Materials
Energy
Manufacturin
Metrics
H-Index
i10 Index
Citation Counts
178
486
120,310
* Total H IndexRankings
Ranking Based On Selection: 8
synthetic biology
antibiotics
biological physics
bionanotechnolog
Metrics
H-Index
i10 Index
Citation Counts
176
376
140,034
* Total H IndexRankings
Ranking Based On Selection: 9
nanotechnology
nanoscienc
Metrics
H-Index
i10 Index
Citation Counts
174
491
120,865
* Total H IndexRankings
Ranking Based On Selection: 10
copolymers
nanoparticles
wrinkling
photovoltaics
thin film
Metrics
H-Index
i10 Index
Citation Counts
173
927
119,991
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* Total H IndexRankings
Ranking Based On Selection: 11
Nanotechnology
Plasmonics
Nanophotonic
Metrics
H-Index
i10 Index
Citation Counts
170
409
133,382
* Total H IndexRankings
Ranking Based On Selection: 12
Biomaterials
Polymers
Drug Delivery
Nanotechnolog
Metrics
H-Index
i10 Index
Citation Counts
168
742
108,812
* Total H IndexRankings
Ranking Based On Selection: 13
nanoscience
nanomaterials
plasmonics
colloids
SER
Metrics
H-Index
i10 Index
Citation Counts
163
586
99,799
* Total H IndexRankings
Ranking Based On Selection: 14
Nanoscience and nanotechnolog
Metrics
H-Index
i10 Index
Citation Counts
161
419
117,752
* Total H IndexRankings
Ranking Based On Selection: 15
Nanogeoscience
Microbial Ecology
Geomicrobiology
Metagenomics
Mineralog
Metrics
H-Index
i10 Index
Citation Counts
159
480
99,405
* Total H IndexRankings
Ranking Based On Selection: 16
biosensors
bioengineering
Chemistry
Nanotechnology
Energ
Metrics
H-Index
i10 Index
Citation Counts
158
571
93,516
* Total H IndexRankings
Ranking Based On Selection: 17
Nanomaterials
Self-Assembl
Metrics
H-Index
i10 Index
Citation Counts
154
473
87,706
* Total H IndexRankings
Ranking Based On Selection: 18
Photocatalysis
Solar energy conversion
Photofunctional Materials
Nanomaterial
Metrics
H-Index
i10 Index
Citation Counts
151
632
84,982
* Total H IndexRankings
Ranking Based On Selection: 19
nanomaterials
quantum dots
nanotechnolog
Metrics
H-Index
i10 Index
Citation Counts
151
523
80,912
* Total H IndexRankings
Ranking Based On Selection: 20
Nanomaterial
Catalysis
Hydrogen Technology
Microbiome
2D Material
Metrics
H-Index
i10 Index
Citation Counts
149
480
102,592
* Total H IndexRankings
Ranking Based On Selection: 21
nanotubes
nanosheets
boron nitride
in situ transmission electron microscop
Metrics
H-Index
i10 Index
Citation Counts
148
653
76,045
* Total H IndexRankings
Ranking Based On Selection: 22
Biomimetics
nanotribology
nanomaterials
bio/nanotechnology
magnetic storage device
Metrics
H-Index
i10 Index
Citation Counts
148
990
112,956
* Total H IndexRankings
Ranking Based On Selection: 23
Nucleic acids chemistry
DNA nanotechnology
Bioimaging and biosensor
Metrics
H-Index
i10 Index
Citation Counts
147
698
94,867
* Total H IndexRankings
Ranking Based On Selection: 24
nanoscience
nanotechnology
nanomedicine
nanocatalysis
nanosensor
Metrics
H-Index
i10 Index
Citation Counts
146
672
163,349
* Total H IndexRankings
Ranking Based On Selection: 25
Surface Science
nanoscience
scanning probe microscop
Metrics
H-Index
i10 Index
Citation Counts
146
673
81,692
Zhong Lin Wang
Metrics
H-Index
i10-Index
Citation Counts
331
2,515
484,757
nanogenerator
self-powered sensors/systems
blue energy
piezotronics
piezo-phototronic
Yi Cui
Stanford University
Stanford, United States
Metrics
H-Index
i10-Index
Citation Counts
285
841
326,460
nanotechnology
energy
environment
2D materials
nanobi
Yury Gogotsi
Drexel University
Philadelphia, United States
Metrics
H-Index
i10-Index
Citation Counts
248
922
304,300
Carbon
nanomaterials
energy storage
supercapacitors
MXen
Joseph Wang
University of California San Diego
San Diego, United States
Metrics
H-Index
i10-Index
Citation Counts
216
1,208
179,321
biosensors
electrochemistry
nanomotors
modified electrodes
microfabricatio
Hua Zhang (张华)
City University of Hong Kong
Kowloon, Hong Kong
Metrics
H-Index
i10-Index
Citation Counts
196
565
157,481
Phase engineering of nanomaterials (PEN) and controlled epitaxial growth of heterostructure
Khalil Amine
Metrics
H-Index
i10-Index
Citation Counts
183
775
115,366
Batteries
Fuel Cell
Carbon material
Fluorine material
Nanotechnolog
Liangbing Hu
University of Maryland
College Park, United States
Metrics
H-Index
i10-Index
Citation Counts
178
486
120,310
Materials
Energy
Manufacturin
James J Collins
Metrics
H-Index
i10-Index
Citation Counts
176
376
140,034
synthetic biology
antibiotics
biological physics
bionanotechnolog
Russell TP
Metrics
H-Index
i10-Index
Citation Counts
173
927
119,991
copolymers
nanoparticles
wrinkling
photovoltaics
thin film
Is Your University Ready for the Future?
Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis
NJ Halas
Rice University
Houston, United States
Metrics
H-Index
i10-Index
Citation Counts
170
409
133,382
Nanotechnology
Plasmonics
Nanophotonic
Kazunori Kataoka
University of Tokyo
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
168
742
108,812
Biomaterials
Polymers
Drug Delivery
Nanotechnolog
Luis M. Liz-Marzán
CIC biomaGUNE
San Sebastián, Spain
Metrics
H-Index
i10-Index
Citation Counts
163
586
99,799
nanoscience
nanomaterials
plasmonics
colloids
SER
Xiangfeng Duan
University of California Los Angeles
Los Angeles, United States
Metrics
H-Index
i10-Index
Citation Counts
161
419
117,752
Nanoscience and nanotechnolog
Jillian Banfield
Metrics
H-Index
i10-Index
Citation Counts
159
480
99,405
Nanogeoscience
Microbial Ecology
Geomicrobiology
Metagenomics
Mineralog
Yuehe Lin
Metrics
H-Index
i10-Index
Citation Counts
158
571
93,516
biosensors
bioengineering
Chemistry
Nanotechnology
Energ
Nicholas A Kotov
University of Michigan
Ann Arbor, United States
Metrics
H-Index
i10-Index
Citation Counts
154
473
87,706
Nanomaterials
Self-Assembl
Jinhua Ye
Metrics
H-Index
i10-Index
Citation Counts
151
632
84,982
Photocatalysis
Solar energy conversion
Photofunctional Materials
Nanomaterial
Andrey Rogach
City University of Hong Kong
Kowloon, Hong Kong
Metrics
H-Index
i10-Index
Citation Counts
151
523
80,912
nanomaterials
quantum dots
nanotechnolog
Yu Huang
University of California Los Angeles
Los Angeles, United States
Metrics
H-Index
i10-Index
Citation Counts
149
480
102,592
Nanomaterial
Catalysis
Hydrogen Technology
Microbiome
2D Material
Dmitri Golberg
Queensland University of Technology
Brisbane, Australia
Metrics
H-Index
i10-Index
Citation Counts
148
653
76,045
nanotubes
nanosheets
boron nitride
in situ transmission electron microscop
Bharat Bhushan
Ohio State University
Columbus, United States
Metrics
H-Index
i10-Index
Citation Counts
148
990
112,956
Biomimetics
nanotribology
nanomaterials
bio/nanotechnology
magnetic storage device
Chunhai Fan
Shanghai Jiao Tong University
Shanghai, China
Metrics
H-Index
i10-Index
Citation Counts
147
698
94,867
Nucleic acids chemistry
DNA nanotechnology
Bioimaging and biosensor
Mostafa A El Sayed
Metrics
H-Index
i10-Index
Citation Counts
146
672
163,349
nanoscience
nanotechnology
nanomedicine
nanocatalysis
nanosensor
Flemming Besenbacher
Aarhus University
Aarhus, Denmark
Metrics
H-Index
i10-Index
Citation Counts
146
673
81,692
Surface Science
nanoscience
scanning probe microscop