University, Subject, Country, Region, World
Fraunhofer-Institut für System- und Innovationsforschung ISI 51 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 Mar 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 (941.641) 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
energy systems
electric vehicles
statistics
energy economics
Metrics
H-Index
i10 Index
Citation Counts
40
107
7,641
* Total H IndexRankings
Ranking Based On Selection: 2
energy policy
energy markets
energy efficiency
renewables
Metrics
H-Index
i10 Index
Citation Counts
39
114
6,358
* Total H IndexRankings
Ranking Based On Selection: 3
Energy and sustainability transition
individual and collective behaviour
decision making processes
societal stakeholders and
Metrics
H-Index
i10 Index
Citation Counts
37
80
5,682
* Total H IndexRankings
Ranking Based On Selection: 4
Datenschutz
Internet of Things
Privatheit
Künstliche Intelligenz
Metrics
H-Index
i10 Index
Citation Counts
34
82
4,599
* Total H IndexRankings
Ranking Based On Selection: 5
Innovation Economics
Economic Geography
Metrics
H-Index
i10 Index
Citation Counts
32
97
4,961
* Total H IndexRankings
Ranking Based On Selection: 6
alternative fuel vehicles
electric vehicles
market diffusion models
Metrics
H-Index
i10 Index
Citation Counts
30
57
3,821
* Total H IndexRankings
Ranking Based On Selection: 7
Metrics
H-Index
i10 Index
Citation Counts
29
59
3,662
* Total H IndexRankings
Ranking Based On Selection: 8
Metrics
H-Index
i10 Index
Citation Counts
28
66
3,340
* Total H IndexRankings
Ranking Based On Selection: 9
raw materials supply and demand
material flow analysis
raw materials criticality
raw materials for emerging technologies
Metrics
H-Index
i10 Index
Citation Counts
26
44
3,304
* Total H IndexRankings
Ranking Based On Selection: 10
Metrics
H-Index
i10 Index
Citation Counts
26
37
2,412
Maximize your institution's potential with our 360° Institutional Analysis Subscription and Institutional Exclusive Package, offering comprehensive insights and strategic advantages.
* Total H IndexRankings
Ranking Based On Selection: 11
Policy analysis in the area of science
technology and innovation
mission-oriented innovation policy
technology assessment
re
Metrics
H-Index
i10 Index
Citation Counts
25
59
3,342
* Total H IndexRankings
Ranking Based On Selection: 12
Metrics
H-Index
i10 Index
Citation Counts
25
56
2,790
* Total H IndexRankings
Ranking Based On Selection: 13
Energy economics
Metrics
H-Index
i10 Index
Citation Counts
24
43
2,025
* Total H IndexRankings
Ranking Based On Selection: 14
Circular Economy
Industrial Ecology
Raw Material Criticality
Cleaner Production
Life Cycle Assessment
Metrics
H-Index
i10 Index
Citation Counts
18
25
1,457
* Total H IndexRankings
Ranking Based On Selection: 15
Metrics
H-Index
i10 Index
Citation Counts
18
27
1,334
* Total H IndexRankings
Ranking Based On Selection: 16
Innovation
Functional Materials
Microelectronics
Energy technologies
Quantum Technologies
Metrics
H-Index
i10 Index
Citation Counts
17
22
1,189
* Total H IndexRankings
Ranking Based On Selection: 17
Metrics
H-Index
i10 Index
Citation Counts
15
20
1,057
* Total H IndexRankings
Ranking Based On Selection: 18
Energie
Metrics
H-Index
i10 Index
Citation Counts
14
19
1,000
* Total H IndexRankings
Ranking Based On Selection: 19
Metrics
H-Index
i10 Index
Citation Counts
14
23
879
* Total H IndexRankings
Ranking Based On Selection: 20
Innovation research and policy
science-industry relations
knowledge production in the age of Artificial Intelligence
Metrics
H-Index
i10 Index
Citation Counts
14
23
760
* Total H IndexRankings
Ranking Based On Selection: 21
Metrics
H-Index
i10 Index
Citation Counts
12
16
635
* Total H IndexRankings
Ranking Based On Selection: 22
Energy Demand
Energy Efficiency
Energy Policy
Policy Networks
Energy Transition
Metrics
H-Index
i10 Index
Citation Counts
11
11
386
* Total H IndexRankings
Ranking Based On Selection: 23
Metrics
H-Index
i10 Index
Citation Counts
11
15
1,128
* Total H IndexRankings
Ranking Based On Selection: 24
Urban mobility
Environmental Policy
Delta planning
Governance
Automated minibuses
Metrics
H-Index
i10 Index
Citation Counts
10
10
354
* Total H IndexRankings
Ranking Based On Selection: 25
consumer psychology
environmental psychology
Metrics
H-Index
i10 Index
Citation Counts
10
10
322
Patrick Plötz
Metrics
H-Index
i10-Index
Citation Counts
40
107
7,641
energy systems
electric vehicles
statistics
energy economics
Wolfgang Eichhammer
Metrics
H-Index
i10-Index
Citation Counts
39
114
6,358
Elisabeth Dütschke
Metrics
H-Index
i10-Index
Citation Counts
37
80
5,682
Energy and sustainability transition
individual and collective behaviour
decision making processes
societal stakeholders and
Michael Friedewald
Metrics
H-Index
i10-Index
Citation Counts
34
82
4,599
Datenschutz
Internet of Things
Privatheit
Künstliche Intelligenz
Knut Koschatzky
Metrics
H-Index
i10-Index
Citation Counts
32
97
4,961
Innovation Economics
Economic Geography
Till Gnann
Metrics
H-Index
i10-Index
Citation Counts
30
57
3,821
alternative fuel vehicles
electric vehicles
market diffusion models
Frank SensfuíŸ
Metrics
H-Index
i10-Index
Citation Counts
29
59
3,662
Henning Kroll
Metrics
H-Index
i10-Index
Citation Counts
28
66
3,340
Luis Tercero
Metrics
H-Index
i10-Index
Citation Counts
26
44
3,304
raw materials supply and demand
material flow analysis
raw materials criticality
raw materials for emerging technologies
Henning Döscher
Metrics
H-Index
i10-Index
Citation Counts
26
37
2,412
Maximize your institution's potential with our 360° Institutional Analysis Subscription and Institutional Exclusive Package, offering comprehensive insights and strategic advantages.
Ralf Lindner
Metrics
H-Index
i10-Index
Citation Counts
25
59
3,342
Policy analysis in the area of science
technology and innovation
mission-oriented innovation policy
technology assessment
re
Barbara Schlomann
Metrics
H-Index
i10-Index
Citation Counts
25
56
2,790
Benjamin Pfluger
Metrics
H-Index
i10-Index
Citation Counts
24
43
2,025
Simon Gloeser|Simon Glöser-Chahoud
Metrics
H-Index
i10-Index
Citation Counts
18
25
1,457
Circular Economy
Industrial Ecology
Raw Material Criticality
Cleaner Production
Life Cycle Assessment
Steinbach, Jan
Metrics
H-Index
i10-Index
Citation Counts
18
27
1,334
Thomas Schmaltz
Metrics
H-Index
i10-Index
Citation Counts
17
22
1,189
Innovation
Functional Materials
Microelectronics
Energy technologies
Quantum Technologies
Christoph P. Kiefer
Metrics
H-Index
i10-Index
Citation Counts
15
20
1,057
Gerda Deac
Metrics
H-Index
i10-Index
Citation Counts
14
19
1,000
Sven Wydra
Metrics
H-Index
i10-Index
Citation Counts
14
23
879
Bernd Beckert
Metrics
H-Index
i10-Index
Citation Counts
14
23
760
Innovation research and policy
science-industry relations
knowledge production in the age of Artificial Intelligence
Christiane Bernath
Metrics
H-Index
i10-Index
Citation Counts
12
16
635
Heike Brugger
Metrics
H-Index
i10-Index
Citation Counts
11
11
386
Energy Demand
Energy Efficiency
Energy Policy
Policy Networks
Energy Transition
Matthias Gotsch
Metrics
H-Index
i10-Index
Citation Counts
11
15
1,128
Dorien Korbee|Dorien Duffner-Korbee
Metrics
H-Index
i10-Index
Citation Counts
10
10
354
Urban mobility
Environmental Policy
Delta planning
Governance
Automated minibuses
Johannes Schuler
Metrics
H-Index
i10-Index
Citation Counts
10
10
322
consumer psychology
environmental psychology