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 Feb 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 (870.053) 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
nanostructured materials
high entropy materials
tuneable nanostructures
energy materials
Metrics
H-Index
i10 Index
Citation Counts
96
477
35,409
* Total H IndexRankings
Ranking Based On Selection: 2
solar energy
luminescence
up- & down-conversion
NIR tags for plastic sorting
photocatalysis
Metrics
H-Index
i10 Index
Citation Counts
75
256
21,075
* Total H IndexRankings
Ranking Based On Selection: 3
transmission electron microscopy
Metrics
H-Index
i10 Index
Citation Counts
62
165
14,461
* Total H IndexRankings
Ranking Based On Selection: 4
Metrics
H-Index
i10 Index
Citation Counts
37
79
3,759
* Total H IndexRankings
Ranking Based On Selection: 5
Nanotechnology
Dip-Pen Nanolithography
Life Sciences
Metrics
H-Index
i10 Index
Citation Counts
37
83
3,841
* Total H IndexRankings
Ranking Based On Selection: 6
Supercritical fluids
Particle formation
Nanoparticles
Metrics
H-Index
i10 Index
Citation Counts
33
57
3,980
* Total H IndexRankings
Ranking Based On Selection: 7
nanoparticle synthesis
catalysis
magnetic nanoparticles
Metrics
H-Index
i10 Index
Citation Counts
32
68
3,249
* Total H IndexRankings
Ranking Based On Selection: 8
Energy storage and conversion
Nanomaterials
Lithium/sodium-ion batteries
fuel cell catalysts
Metrics
H-Index
i10 Index
Citation Counts
29
39
2,825
* Total H IndexRankings
Ranking Based On Selection: 9
Energy Conversion
Energy Storage
nanomaterials
spectroscopy
biosensor
Metrics
H-Index
i10 Index
Citation Counts
29
54
3,726
* Total H IndexRankings
Ranking Based On Selection: 10
Nanophotonics
Nonlinear Optics
Optical manipulation
Semiconductor lasers
Metrics
H-Index
i10 Index
Citation Counts
28
45
3,403
* Total H IndexRankings
Ranking Based On Selection: 11
Nanoscience
Thin Films
Thermoelectrics
Photo-Electrocatalysis
Optical Nanomaterials
Metrics
H-Index
i10 Index
Citation Counts
28
44
3,191
* Total H IndexRankings
Ranking Based On Selection: 12
Nanomaterials
Energy Storage Materials
Metrics
H-Index
i10 Index
Citation Counts
27
39
2,652
* Total H IndexRankings
Ranking Based On Selection: 13
Tribology
Nanotribology
Friction
Wear
Metrics
H-Index
i10 Index
Citation Counts
27
35
4,021
* Total H IndexRankings
Ranking Based On Selection: 14
cluster
fluorescence spectroscopy
ion traps
Metrics
H-Index
i10 Index
Citation Counts
25
37
3,507
* Total H IndexRankings
Ranking Based On Selection: 15
Electrochemistry
Lithium-Ion Battery
Nanomaterials
Metrics
H-Index
i10 Index
Citation Counts
23
28
2,004
* Total H IndexRankings
Ranking Based On Selection: 16
Batteries
Nanomaterials
Science Management
Metrics
H-Index
i10 Index
Citation Counts
23
33
3,479
* Total H IndexRankings
Ranking Based On Selection: 17
Nanomaterials
Photocatalysis
Electrospun Nanofibers (Polymeric
Inorganic and composite)
Metrics
H-Index
i10 Index
Citation Counts
21
25
1,147
* Total H IndexRankings
Ranking Based On Selection: 18
3D Cell Culture
Biophysics
Direct Laser Writing
3D printing
Two-photon polymerization
Metrics
H-Index
i10 Index
Citation Counts
18
22
2,042
* Total H IndexRankings
Ranking Based On Selection: 19
Microtechnology
Nanotechnology
Systemintegration
Metrics
H-Index
i10 Index
Citation Counts
17
30
1,067
* Total H IndexRankings
Ranking Based On Selection: 20
in situ electron microscopy
nanoscience
materials science
chemistry
solid state physics
Metrics
H-Index
i10 Index
Citation Counts
13
17
1,097
* Total H IndexRankings
Ranking Based On Selection: 21
Photonics
Integrated Optics
Single Photon Detectors
MEMS
Surface Acoustic Wave Resonators
Metrics
H-Index
i10 Index
Citation Counts
12
15
930
* Total H IndexRankings
Ranking Based On Selection: 22
Solution Chemistry
Computational Chemistry
Machine Learning
Metrics
H-Index
i10 Index
Citation Counts
11
11
582
* Total H IndexRankings
Ranking Based On Selection: 23
Electron Microscopy
Nanomaterials
Electronic Materials and Devices
Thin Films
Nanocomposites
Metrics
H-Index
i10 Index
Citation Counts
10
12
386
* Total H IndexRankings
Ranking Based On Selection: 24
Nanotechnology
Carbon nanotubes
Metrics
H-Index
i10 Index
Citation Counts
10
12
1,004
* Total H IndexRankings
Ranking Based On Selection: 25
Nano Electronics
DNA & Proteins
Theoretical Chemistry
Quantum Chemistry
Molecular Dynamics
Metrics
H-Index
i10 Index
Citation Counts
10
10
736
Horst Hahn
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
96
477
35,409
nanostructured materials
high entropy materials
tuneable nanostructures
energy materials
Bryce S Richards
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
75
256
21,075
solar energy
luminescence
up- & down-conversion
NIR tags for plastic sorting
photocatalysis
Di Wang
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
62
165
14,461
transmission electron microscopy
Ben Flavel
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
37
79
3,759
Michael Hirtz
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
37
83
3,841
Nanotechnology
Dip-Pen Nanolithography
Life Sciences
Michael Türk
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
33
57
3,980
Supercritical fluids
Particle formation
Nanoparticles
Silke Behrens
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
32
68
3,249
nanoparticle synthesis
catalysis
magnetic nanoparticles
Yanjiao Ma
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
29
39
2,825
Energy storage and conversion
Nanomaterials
Lithium/sodium-ion batteries
fuel cell catalysts
Ying Chu Chen
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
29
54
3,726
Energy Conversion
Energy Storage
nanomaterials
spectroscopy
biosensor
Rasoul Alaee
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
28
45
3,403
Nanophotonics
Nonlinear Optics
Optical manipulation
Semiconductor lasers
Engelbert Redel
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
28
44
3,191
Nanoscience
Thin Films
Thermoelectrics
Photo-Electrocatalysis
Optical Nanomaterials
Yuan Ma
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
27
39
2,652
Nanomaterials
Energy Storage Materials
Martin Dienwiebel
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
27
35
4,021
Tribology
Nanotribology
Friction
Wear
Detlef Schooss
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
25
37
3,507
cluster
fluorescence spectroscopy
ion traps
Franziska Mueller
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
23
28
2,004
Electrochemistry
Lithium-Ion Battery
Nanomaterials
Christian Punckt
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
23
33
3,479
Batteries
Nanomaterials
Science Management
Gopal Panthi
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
21
25
1,147
Nanomaterials
Photocatalysis
Electrospun Nanofibers (Polymeric
Inorganic and composite)
Benjamin Richter
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
18
22
2,042
3D Cell Culture
Biophysics
Direct Laser Writing
3D printing
Two-photon polymerization
Ulrich Gengenbach
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
17
30
1,067
Microtechnology
Nanotechnology
Systemintegration
Christian Dolle
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
13
17
1,097
in situ electron microscopy
nanoscience
materials science
chemistry
solid state physics
Patrik Rath
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
12
15
930
Photonics
Integrated Optics
Single Photon Detectors
MEMS
Surface Acoustic Wave Resonators
Payam Kalhor
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
11
11
582
Solution Chemistry
Computational Chemistry
Machine Learning
Saleh Gorji
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
10
12
386
Electron Microscopy
Nanomaterials
Electronic Materials and Devices
Thin Films
Nanocomposites
Felix Pyatkov
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
10
12
1,004
Nanotechnology
Carbon nanotubes
P Benjamin Woiczikowski
Karlsruhe Institute of Technology
Karlsruhe, Germany
Metrics
H-Index
i10-Index
Citation Counts
10
10
736
Nano Electronics
DNA & Proteins
Theoretical Chemistry
Quantum Chemistry
Molecular Dynamics