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
nanotechnology
nanoscience
Metrics
H-Index
i10 Index
Citation Counts
173
483
119,020
* Total H IndexRankings
Ranking Based On Selection: 2
Lithium ion batteries
All Solid State Battery
Na ion and Potassium ion batteries
Cathode for batteries
Li sulfur and Li oxyg
Metrics
H-Index
i10 Index
Citation Counts
165
713
105,917
* Total H IndexRankings
Ranking Based On Selection: 3
Metabolic engineering
synthetic biology
biochemical engineering
bioprocess engineering
Metrics
H-Index
i10 Index
Citation Counts
151
687
84,045
* Total H IndexRankings
Ranking Based On Selection: 4
batteries
Metrics
H-Index
i10 Index
Citation Counts
146
416
75,591
* Total H IndexRankings
Ranking Based On Selection: 5
Materials Application
Air Quality
Environmental analysis
Odor VOC
Metal-Organic Frameworks
Metrics
H-Index
i10 Index
Citation Counts
140
1,074
96,688
* Total H IndexRankings
Ranking Based On Selection: 6
Marine Biotechnology
Natural Products
Marine Biomaterials
Metrics
H-Index
i10 Index
Citation Counts
132
503
62,597
* Total H IndexRankings
Ranking Based On Selection: 7
Perovskite Solar Cell
Qunatun Dot Solar Cell
Dye-Sensitized Solar Cell
Metrics
H-Index
i10 Index
Citation Counts
126
369
84,151
* Total H IndexRankings
Ranking Based On Selection: 8
Photocatalysis
Solar fuel
Advanced oxidation process
Environmental chemistry
Environmental engineering
Metrics
H-Index
i10 Index
Citation Counts
123
334
78,032
* Total H IndexRankings
Ranking Based On Selection: 9
construction management
bim for construction
Metrics
H-Index
i10 Index
Citation Counts
122
387
77,946
* Total H IndexRankings
Ranking Based On Selection: 10
theranostics
molecular imaging
drug delivery
bioengineering
polymers
Metrics
H-Index
i10 Index
Citation Counts
120
416
48,940
* Total H IndexRankings
Ranking Based On Selection: 11
Materials Science
Batteries
First principles calculations
Water splitting
Materials Engineering
Metrics
H-Index
i10 Index
Citation Counts
119
315
53,233
* Total H IndexRankings
Ranking Based On Selection: 12
Nanocomposite
Food Packaging
Metrics
H-Index
i10 Index
Citation Counts
112
350
40,565
* Total H IndexRankings
Ranking Based On Selection: 13
Natural Language Processing
Metrics
H-Index
i10 Index
Citation Counts
107
939
88,654
* Total H IndexRankings
Ranking Based On Selection: 14
Metrics
H-Index
i10 Index
Citation Counts
106
440
38,632
* Total H IndexRankings
Ranking Based On Selection: 15
Battery
Energy Storage
Materials Chemistry
Polymer
Supramolecular Chemistry
Metrics
H-Index
i10 Index
Citation Counts
105
240
49,562
* Total H IndexRankings
Ranking Based On Selection: 16
Electrochemistry
Electrocatalysis
Nanomaterials
Metrics
H-Index
i10 Index
Citation Counts
104
500
41,356
* Total H IndexRankings
Ranking Based On Selection: 17
Materials Science
Semiconductor Devices
Thin film
Fabrication
Metrics
H-Index
i10 Index
Citation Counts
102
582
48,878
* Total H IndexRankings
Ranking Based On Selection: 18
Metrics
H-Index
i10 Index
Citation Counts
101
514
49,685
* Total H IndexRankings
Ranking Based On Selection: 19
Power Electronics
Metrics
H-Index
i10 Index
Citation Counts
101
392
36,265
* Total H IndexRankings
Ranking Based On Selection: 20
regenerative medicine
biomaterials
nanomedicine
Metrics
H-Index
i10 Index
Citation Counts
99
326
32,825
* Total H IndexRankings
Ranking Based On Selection: 21
Solar water splitting
chemical sensors
memristors
optoelectronics & plasmonics
metal-insulator transition
Metrics
H-Index
i10 Index
Citation Counts
98
481
33,807
* Total H IndexRankings
Ranking Based On Selection: 22
Green chemisrty
Porous materials
Metal-organic frameworks
Adsorption
Heterogenous catalysis
Metrics
H-Index
i10 Index
Citation Counts
98
319
36,127
* Total H IndexRankings
Ranking Based On Selection: 23
GIS
machine learning
landslides
land subsidence
groundwater
Metrics
H-Index
i10 Index
Citation Counts
97
226
30,688
* Total H IndexRankings
Ranking Based On Selection: 24
Nano sensors
Energy device
Electrospun nanofibers
Metrics
H-Index
i10 Index
Citation Counts
97
365
35,427
* Total H IndexRankings
Ranking Based On Selection: 25
Nanogenerators: Triboelectric/Piezoelectric
Nanomaterials & Nanotechnology
Energy/Bio Materials
Flexible/Implantable Devices
Metrics
H-Index
i10 Index
Citation Counts
96
307
32,004
Taeghwan Hyeon
Metrics
H-Index
i10-Index
Citation Counts
173
483
119,020
nanotechnology
nanoscience
Sun Yang Kook
Hanyang University
Seoul, South Korea
Metrics
H-Index
i10-Index
Citation Counts
165
713
105,917
Lithium ion batteries
All Solid State Battery
Na ion and Potassium ion batteries
Cathode for batteries
Li sulfur and Li oxyg
Sang Yup Lee
Metrics
H-Index
i10-Index
Citation Counts
151
687
84,045
Metabolic engineering
synthetic biology
biochemical engineering
bioprocess engineering
Jaephil Cho
Metrics
H-Index
i10-Index
Citation Counts
146
416
75,591
Ki Hyun Kim
Hanyang University
Seoul, South Korea
Metrics
H-Index
i10-Index
Citation Counts
140
1,074
96,688
Materials Application
Air Quality
Environmental analysis
Odor VOC
Metal-Organic Frameworks
Se-Kwon Kim
Metrics
H-Index
i10-Index
Citation Counts
132
503
62,597
Marine Biotechnology
Natural Products
Marine Biomaterials
Nam Gyu Park
Metrics
H-Index
i10-Index
Citation Counts
126
369
84,151
Perovskite Solar Cell
Qunatun Dot Solar Cell
Dye-Sensitized Solar Cell
Wonyong Choi
Metrics
H-Index
i10-Index
Citation Counts
123
334
78,032
Photocatalysis
Solar fuel
Advanced oxidation process
Environmental chemistry
Environmental engineering
John Kim
Kyung Hee University
Seoul, South Korea
Metrics
H-Index
i10-Index
Citation Counts
122
387
77,946
construction management
bim for construction
Ick Chan Kwon
Metrics
H-Index
i10-Index
Citation Counts
120
416
48,940
theranostics
molecular imaging
drug delivery
bioengineering
polymers
Kisuk Kang
Metrics
H-Index
i10-Index
Citation Counts
119
315
53,233
Materials Science
Batteries
First principles calculations
Water splitting
Materials Engineering
Jong Whan RH im
Metrics
H-Index
i10-Index
Citation Counts
112
350
40,565
Nanocomposite
Food Packaging
Hae Chang Rim
Korea University
Seoul, South Korea
Metrics
H-Index
i10-Index
Citation Counts
107
939
88,654
Natural Language Processing
Kilwon Cho
Metrics
H-Index
i10-Index
Citation Counts
106
440
38,632
Jang Wook Choi
Metrics
H-Index
i10-Index
Citation Counts
105
240
49,562
Battery
Energy Storage
Materials Chemistry
Polymer
Supramolecular Chemistry
Yung-Eun Sung
Metrics
H-Index
i10-Index
Citation Counts
104
500
41,356
Electrochemistry
Electrocatalysis
Nanomaterials
Cheol Seong Hwang
Metrics
H-Index
i10-Index
Citation Counts
102
582
48,878
Materials Science
Semiconductor Devices
Thin film
Fabrication
Hyeong Joon Kim
Metrics
H-Index
i10-Index
Citation Counts
101
514
49,685
Seungki Sul
Metrics
H-Index
i10-Index
Citation Counts
101
392
36,265
Byung Soo Kim
Metrics
H-Index
i10-Index
Citation Counts
99
326
32,825
regenerative medicine
biomaterials
nanomedicine
Ho Won Jang
Metrics
H-Index
i10-Index
Citation Counts
98
481
33,807
Solar water splitting
chemical sensors
memristors
optoelectronics & plasmonics
metal-insulator transition
Sung Hwa Jhung
Metrics
H-Index
i10-Index
Citation Counts
98
319
36,127
Green chemisrty
Porous materials
Metal-organic frameworks
Adsorption
Heterogenous catalysis
Saro Lee
Metrics
H-Index
i10-Index
Citation Counts
97
226
30,688
GIS
machine learning
landslides
land subsidence
groundwater
Il Doo Kim
Metrics
H-Index
i10-Index
Citation Counts
97
365
35,427
Nano sensors
Energy device
Electrospun nanofibers
Sang Woo Kim
Metrics
H-Index
i10-Index
Citation Counts
96
307
32,004
Nanogenerators: Triboelectric/Piezoelectric
Nanomaterials & Nanotechnology
Energy/Bio Materials
Flexible/Implantable Devices