University, Subject, Country, Region, World
World 11.867 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 Jan 30, 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 (873.690) 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-phototronics
Metrics
H-Index
i10 Index
Citation Counts
326
2,468
469,134
* Total H IndexRankings
Ranking Based On Selection: 2
nanotechnology
energy
environment
2D materials
nanobio
Metrics
H-Index
i10 Index
Citation Counts
282
831
317,192
* Total H IndexRankings
Ranking Based On Selection: 3
Carbon
nanomaterials
energy storage
supercapacitors
MXene
Metrics
H-Index
i10 Index
Citation Counts
243
909
292,452
* Total H IndexRankings
Ranking Based On Selection: 4
biosensors
electrochemistry
nanomotors
modified electrodes
microfabrication
Metrics
H-Index
i10 Index
Citation Counts
211
1,195
175,248
* Total H IndexRankings
Ranking Based On Selection: 5
Phase engineering of nanomaterials (PEN) and controlled epitaxial growth of heterostructures
Metrics
H-Index
i10 Index
Citation Counts
193
562
154,491
* Total H IndexRankings
Ranking Based On Selection: 6
Batteries
Fuel Cell
Carbon material
Fluorine material
Nanotechnology
Metrics
H-Index
i10 Index
Citation Counts
178
759
110,391
* Total H IndexRankings
Ranking Based On Selection: 7
nanomaterials
energy technologies
manufacturing
Metrics
H-Index
i10 Index
Citation Counts
173
484
116,104
* Total H IndexRankings
Ranking Based On Selection: 8
synthetic biology
antibiotics
biological physics
bionanotechnology
Metrics
H-Index
i10 Index
Citation Counts
173
366
135,979
* Total H IndexRankings
Ranking Based On Selection: 9
nanotechnology
nanoscience
Metrics
H-Index
i10 Index
Citation Counts
173
483
119,020
* Total H IndexRankings
Ranking Based On Selection: 10
copolymers
nanoparticles
wrinkling
photovoltaics
thin films
Metrics
H-Index
i10 Index
Citation Counts
172
919
118,810
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* Total H IndexRankings
Ranking Based On Selection: 11
Biomaterials
Polymers
Drug Delivery
Nanotechnology
Metrics
H-Index
i10 Index
Citation Counts
170
744
107,751
* Total H IndexRankings
Ranking Based On Selection: 12
Nanotechnology
Plasmonics
Nanophotonics
Metrics
H-Index
i10 Index
Citation Counts
169
404
131,647
* Total H IndexRankings
Ranking Based On Selection: 13
nanoscience
nanomaterials
plasmonics
colloids
SERS
Metrics
H-Index
i10 Index
Citation Counts
162
573
97,792
* Total H IndexRankings
Ranking Based On Selection: 14
Nanoscience and nanotechnology
Metrics
H-Index
i10 Index
Citation Counts
157
409
113,419
* Total H IndexRankings
Ranking Based On Selection: 15
biosensors
bioengineering
Chemistry
Nanotechnology
Energy
Metrics
H-Index
i10 Index
Citation Counts
157
563
91,496
* Total H IndexRankings
Ranking Based On Selection: 16
Nanogeoscience
Microbial Ecology
Geomicrobiology
Metagenomics
Mineralogy
Metrics
H-Index
i10 Index
Citation Counts
157
471
96,420
* Total H IndexRankings
Ranking Based On Selection: 17
Nanomaterials
Self-Assembly
Metrics
H-Index
i10 Index
Citation Counts
152
469
85,638
* Total H IndexRankings
Ranking Based On Selection: 18
nanomaterials
quantum dots
nanotechnology
Metrics
H-Index
i10 Index
Citation Counts
148
516
79,262
* Total H IndexRankings
Ranking Based On Selection: 19
Photocatalysis
Solar energy conversion
Photofunctional Materials
Nanomaterials
Metrics
H-Index
i10 Index
Citation Counts
147
621
82,364
* Total H IndexRankings
Ranking Based On Selection: 20
nanotubes
nanosheets
boron nitride
in situ transmission electron microscopy
Metrics
H-Index
i10 Index
Citation Counts
147
651
75,108
* Total H IndexRankings
Ranking Based On Selection: 21
nanoscience
nanotechnology
nanomedicine
nanocatalysis
nanosensors
Metrics
H-Index
i10 Index
Citation Counts
147
674
161,394
* Total H IndexRankings
Ranking Based On Selection: 22
Biomimetics
nanotribology
nanomaterials
bio/nanotechnology
magnetic storage devices
Metrics
H-Index
i10 Index
Citation Counts
146
980
110,829
* Total H IndexRankings
Ranking Based On Selection: 23
Surface Science
nanoscience
scanning probe microscopy
Metrics
H-Index
i10 Index
Citation Counts
145
672
80,699
* Total H IndexRankings
Ranking Based On Selection: 24
Nanomaterial
Catalysis
Hydrogen Technology
Microbiome
2D Materials
Metrics
H-Index
i10 Index
Citation Counts
144
392
95,750
* Total H IndexRankings
Ranking Based On Selection: 25
Nucleic acids chemistry
DNA nanotechnology
Bioimaging and biosensors
Metrics
H-Index
i10 Index
Citation Counts
144
685
93,112
Zhong Lin Wang
Metrics
H-Index
i10-Index
Citation Counts
326
2,468
469,134
nanogenerator
self-powered sensors/systems
blue energy
piezotronics
piezo-phototronics
Yi Cui
Stanford University
Stanford, United States
Metrics
H-Index
i10-Index
Citation Counts
282
831
317,192
nanotechnology
energy
environment
2D materials
nanobio
Yury Gogotsi
Drexel University
Philadelphia, United States
Metrics
H-Index
i10-Index
Citation Counts
243
909
292,452
Carbon
nanomaterials
energy storage
supercapacitors
MXene
Joseph Wang
University of California San Diego
San Diego, United States
Metrics
H-Index
i10-Index
Citation Counts
211
1,195
175,248
biosensors
electrochemistry
nanomotors
modified electrodes
microfabrication
Hua Zhang (张华)
City University of Hong Kong
Kowloon, Hong Kong
Metrics
H-Index
i10-Index
Citation Counts
193
562
154,491
Phase engineering of nanomaterials (PEN) and controlled epitaxial growth of heterostructures
Khalil Amine
Metrics
H-Index
i10-Index
Citation Counts
178
759
110,391
Batteries
Fuel Cell
Carbon material
Fluorine material
Nanotechnology
Liangbing Hu
University of Maryland
College Park, United States
Metrics
H-Index
i10-Index
Citation Counts
173
484
116,104
nanomaterials
energy technologies
manufacturing
James J Collins
Metrics
H-Index
i10-Index
Citation Counts
173
366
135,979
synthetic biology
antibiotics
biological physics
bionanotechnology
Russell TP
Metrics
H-Index
i10-Index
Citation Counts
172
919
118,810
copolymers
nanoparticles
wrinkling
photovoltaics
thin films
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!
Kazunori Kataoka
University of Tokyo
Tokyo, Japan
Metrics
H-Index
i10-Index
Citation Counts
170
744
107,751
Biomaterials
Polymers
Drug Delivery
Nanotechnology
NJ Halas
Rice University
Houston, United States
Metrics
H-Index
i10-Index
Citation Counts
169
404
131,647
Nanotechnology
Plasmonics
Nanophotonics
Luis M. Liz-Marzán
CIC biomaGUNE
San Sebastián, Spain
Metrics
H-Index
i10-Index
Citation Counts
162
573
97,792
nanoscience
nanomaterials
plasmonics
colloids
SERS
Xiangfeng Duan
University of California Los Angeles
Los Angeles, United States
Metrics
H-Index
i10-Index
Citation Counts
157
409
113,419
Nanoscience and nanotechnology
Yuehe Lin
Metrics
H-Index
i10-Index
Citation Counts
157
563
91,496
biosensors
bioengineering
Chemistry
Nanotechnology
Energy
Jillian Banfield
Metrics
H-Index
i10-Index
Citation Counts
157
471
96,420
Nanogeoscience
Microbial Ecology
Geomicrobiology
Metagenomics
Mineralogy
Nicholas A Kotov
University of Michigan
Ann Arbor, United States
Metrics
H-Index
i10-Index
Citation Counts
152
469
85,638
Nanomaterials
Self-Assembly
Andrey Rogach
City University of Hong Kong
Kowloon, Hong Kong
Metrics
H-Index
i10-Index
Citation Counts
148
516
79,262
nanomaterials
quantum dots
nanotechnology
Jinhua Ye
Metrics
H-Index
i10-Index
Citation Counts
147
621
82,364
Photocatalysis
Solar energy conversion
Photofunctional Materials
Nanomaterials
Dmitri Golberg
Queensland University of Technology
Brisbane, Australia
Metrics
H-Index
i10-Index
Citation Counts
147
651
75,108
nanotubes
nanosheets
boron nitride
in situ transmission electron microscopy
Mostafa A El Sayed
Metrics
H-Index
i10-Index
Citation Counts
147
674
161,394
nanoscience
nanotechnology
nanomedicine
nanocatalysis
nanosensors
Bharat Bhushan
Ohio State University
Columbus, United States
Metrics
H-Index
i10-Index
Citation Counts
146
980
110,829
Biomimetics
nanotribology
nanomaterials
bio/nanotechnology
magnetic storage devices
Flemming Besenbacher
Aarhus University
Aarhus, Denmark
Metrics
H-Index
i10-Index
Citation Counts
145
672
80,699
Surface Science
nanoscience
scanning probe microscopy
Yu Huang
University of California Los Angeles
Los Angeles, United States
Metrics
H-Index
i10-Index
Citation Counts
144
392
95,750
Nanomaterial
Catalysis
Hydrogen Technology
Microbiome
2D Materials
Chunhai Fan
Shanghai Jiao Tong University
Shanghai, China
Metrics
H-Index
i10-Index
Citation Counts
144
685
93,112
Nucleic acids chemistry
DNA nanotechnology
Bioimaging and biosensors