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
hollow structures
batteries
electrocatalysis
supercapacitors
photocatalysis
Metrics
H-Index
i10 Index
Citation Counts
227
397
145,955
* Total H IndexRankings
Ranking Based On Selection: 2
energy storage materials
graphene 2D materials
photonics
hybrid perovskites
Metrics
H-Index
i10 Index
Citation Counts
126
436
64,982
* Total H IndexRankings
Ranking Based On Selection: 3
Energy storage
Batteries
E-waste/Batteries recycling
Sustainability
Circular economy
Metrics
H-Index
i10 Index
Citation Counts
113
385
41,870
* Total H IndexRankings
Ranking Based On Selection: 4
Microgrids
Power System Stability
Smart Grid
Data-Analytics
Metrics
H-Index
i10 Index
Citation Counts
83
300
21,893
* Total H IndexRankings
Ranking Based On Selection: 5
Energy Studies
Performance Indicators
Decomposition Analysis
LMDI
Metrics
H-Index
i10 Index
Citation Counts
80
153
36,691
* Total H IndexRankings
Ranking Based On Selection: 6
Energy and thermal systems
microscale combustion
micro thrusters and propulsion
energy management
Metrics
H-Index
i10 Index
Citation Counts
73
171
18,052
* Total H IndexRankings
Ranking Based On Selection: 7
Photovoltaic materials
cells
modules
Metrics
H-Index
i10 Index
Citation Counts
67
280
19,845
* Total H IndexRankings
Ranking Based On Selection: 8
Energy System Modeling
Input-Output Analysis
Decomposition Analysis
Global Value Chains
Metrics
H-Index
i10 Index
Citation Counts
63
139
14,161
* Total H IndexRankings
Ranking Based On Selection: 9
Solar cells
supercapacitors
Water Splitting Materials and Systems
Transparent Semiconductors
Electronic and Functional Mater
Metrics
H-Index
i10 Index
Citation Counts
63
193
18,252
* Total H IndexRankings
Ranking Based On Selection: 10
Power & Energy
Metrics
H-Index
i10 Index
Citation Counts
59
261
14,238
* Total H IndexRankings
Ranking Based On Selection: 11
Numerical Analysis
Data Science
Marketing
Metrics
H-Index
i10 Index
Citation Counts
55
184
12,504
* Total H IndexRankings
Ranking Based On Selection: 12
Energy storage
Metrics
H-Index
i10 Index
Citation Counts
52
93
11,636
* Total H IndexRankings
Ranking Based On Selection: 13
Batteries
Electrochemistry
Hydrogels
Ionogels
Metrics
H-Index
i10 Index
Citation Counts
44
64
12,318
* Total H IndexRankings
Ranking Based On Selection: 14
Power System Automation
Cyber-physical Energy Systems
Metrics
H-Index
i10 Index
Citation Counts
44
100
5,466
* Total H IndexRankings
Ranking Based On Selection: 15
Energy storage
Design and synthesis of materials
Metrics
H-Index
i10 Index
Citation Counts
41
82
5,897
* Total H IndexRankings
Ranking Based On Selection: 16
Energy material
Thin film
Perovskite solar cell
Organic photovoltaic
Redox flow battery
Metrics
H-Index
i10 Index
Citation Counts
41
66
5,095
* Total H IndexRankings
Ranking Based On Selection: 17
Biomass-to-fuel/ green chemicals
passive cooling
nanofabrication
Metrics
H-Index
i10 Index
Citation Counts
40
78
19,504
* Total H IndexRankings
Ranking Based On Selection: 18
energy storage
materials
Metrics
H-Index
i10 Index
Citation Counts
40
62
10,008
* Total H IndexRankings
Ranking Based On Selection: 19
energy
Metrics
H-Index
i10 Index
Citation Counts
37
69
5,243
* Total H IndexRankings
Ranking Based On Selection: 20
Renewable Energy
Power system
Optimization
Solar Energy
Electrical Engineering
Metrics
H-Index
i10 Index
Citation Counts
35
55
3,221
* Total H IndexRankings
Ranking Based On Selection: 21
Energy Storage
Catalyst
MOF
3D printing
Nanomaterial
Metrics
H-Index
i10 Index
Citation Counts
34
37
6,512
* Total H IndexRankings
Ranking Based On Selection: 22
solar energy
photoelectrochemical water splitting
biomass/plastic waste upgrading
Metrics
H-Index
i10 Index
Citation Counts
33
48
3,178
* Total H IndexRankings
Ranking Based On Selection: 23
Smart and Sustainable Building Technologies Air-conditioning and Mechanical Ventilation Buildi
Metrics
H-Index
i10 Index
Citation Counts
32
53
7,190
* Total H IndexRankings
Ranking Based On Selection: 24
multi-energy systems
AI
green hydrogen
optimization
smart grids and ships
Metrics
H-Index
i10 Index
Citation Counts
30
42
3,225
* Total H IndexRankings
Ranking Based On Selection: 25
energy storage and electrocatalysis
Metrics
H-Index
i10 Index
Citation Counts
30
50
2,459
Xiong Wen David Lou
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
227
397
145,955
hollow structures
batteries
electrocatalysis
supercapacitors
photocatalysis
Shen Ze Xiang
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
126
436
64,982
energy storage materials
graphene 2D materials
photonics
hybrid perovskites
Madhavi Srinivasan
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
113
385
41,870
Energy storage
Batteries
E-waste/Batteries recycling
Sustainability
Circular economy
Yan Xu
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
83
300
21,893
Microgrids
Power System Stability
Smart Grid
Data-Analytics
BW Ang
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
80
153
36,691
Energy Studies
Performance Indicators
Decomposition Analysis
LMDI
SK Chou Chou Siaw Kiang
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
73
171
18,052
Energy and thermal systems
microscale combustion
micro thrusters and propulsion
energy management
Armin Aberle
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
67
280
19,845
Photovoltaic materials
cells
modules
Bin Su B Su
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
63
139
14,161
Energy System Modeling
Input-Output Analysis
Decomposition Analysis
Global Value Chains
Hao Gong
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
63
193
18,252
Solar cells
supercapacitors
Water Splitting Materials and Systems
Transparent Semiconductors
Electronic and Functional Mater
Sanjib Kumar Panda
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
59
261
14,238
Song Chen
Metrics
H-Index
i10-Index
Citation Counts
55
184
12,504
Numerical Analysis
Data Science
Marketing
Palani Balaya
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
52
93
11,636
Peihua Yang
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
44
64
12,318
Batteries
Electrochemistry
Hydrogels
Ionogels
SM Suhail Hussain
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
44
100
5,466
Power System Automation
Cyber-physical Energy Systems
Dezhi Kong
Metrics
H-Index
i10-Index
Citation Counts
41
82
5,897
Energy storage
Design and synthesis of materials
Yuanhang Cheng 程远航
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
41
66
5,095
Energy material
Thin film
Perovskite solar cell
Organic photovoltaic
Redox flow battery
Hong Li Colin
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
40
78
19,504
Biomass-to-fuel/ green chemicals
passive cooling
nanofabrication
Linfei Lai
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
40
62
10,008
energy storage
materials
Philip Andrews
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
37
69
5,243
Nishant Kumar
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
35
55
3,221
Renewable Energy
Power system
Optimization
Solar Energy
Electrical Engineering
Ximeng Liu
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
34
37
6,512
Energy Storage
Catalyst
MOF
3D printing
Nanomaterial
Xin Zhao
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
33
48
3,178
solar energy
photoelectrochemical water splitting
biomass/plastic waste upgrading
Swapnil Dubey
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
32
53
7,190
Smart and Sustainable Building Technologies Air-conditioning and Mechanical Ventilation Buildi
Li Zhengmao
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
30
42
3,225
multi-energy systems
AI
green hydrogen
optimization
smart grids and ships
Zixu Sun
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
30
50
2,459
energy storage and electrocatalysis