Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (873,937 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection :1
Andrew R Barron
Chemistry
Nanotechnology
Materials Science
Energy
Environmental Science
Metrics
H-Index
i10 Index
Citation
81
421
24,526
* Rankings
Ranking Based On Selection :4
Mariolino Carta
Material Chemistry
Porous Materials
Organic Chemistry
Polymers of Intrinsic Microporosity (PIMs)
Catalysis
Metrics
H-Index
i10 Index
Citation
43
94
7,399
Matthew L Davies
Photochemistry/photophysics
physical chemistry
materials chemistry
dye sensitized solar cells
hybrid solar cells
Metrics
H-Index
i10 Index
Citation
26
52
2,859
Michael EA Warwick
Photocatalysis
CVD
Energy Efficency
Thinfilms
Building Modelling
Metrics
H-Index
i10 Index
Citation
26
38
1,914
Martin R Gill
Inorganic Chemistry
Chemical Biology
Cancer Research
Medicinal Inorganic Chemistry
Metrics
H-Index
i10 Index
Citation
24
33
3,240
* Rankings
Ranking Based On Selection :10
Helen Chadwick
Physical Chemistry
Chemical Physics
Stereodynamics
Gas-surface dynamics
Metrics
H-Index
i10 Index
Citation
23
38
1,481
* Rankings
Ranking Based On Selection :11
Moritz F Kuehnel|Moritz Kuehnel
Solar Fuels
Hydrogen
CO2 Reduction
Biomass
Plastic Waste
Metrics
H-Index
i10 Index
Citation
22
30
4,066
* Rankings
Ranking Based On Selection :12
Cécile Charbonneau
Materials chemistry and engineering
TiO2 nanoparticles
3rd generation photovoltaics
metal oxide films
inorganic synthesis
Metrics
H-Index
i10 Index
Citation
22
33
1,758
* Rankings
Ranking Based On Selection :15
Jennifer A Rudd
Electrochemistry
Photochemistry
Catalysis
CO2 reduction
Materials Chemistry
Metrics
H-Index
i10 Index
Citation
15
18
878
Geraint Sullivan
Chemistry
analytical chemistry
environmental sciences
Metrics
H-Index
i10 Index
Citation
7
7
467
Rankings
Ranking Based On Selection: 1
Andrew R Barron
Metrics
H-Index
i10 Index
Citation Counts
81
421
24,526
Chemistry
Nanotechnology
Materials Science
Energy
Environmental Science
Rankings
Ranking Based On Selection: 2
William J Griffiths
Metrics
H-Index
i10 Index
Citation Counts
66
237
16,562
Rankings
Ranking Based On Selection: 3
Simon G Bott
Metrics
H-Index
i10 Index
Citation Counts
59
259
13,142
Rankings
Ranking Based On Selection: 4
Mariolino Carta
Metrics
H-Index
i10 Index
Citation Counts
43
94
7,399
Material Chemistry
Porous Materials
Organic Chemistry
Polymers of Intrinsic Microporosity (PIMs)
Catalysis
Rankings
Ranking Based On Selection: 5
Paolo Bertoncello
Metrics
H-Index
i10 Index
Citation Counts
28
48
3,291
Rankings
Ranking Based On Selection: 6
James McGettrick
Metrics
H-Index
i10 Index
Citation Counts
27
41
2,465
Rankings
Ranking Based On Selection: 7
Matthew L Davies
Metrics
H-Index
i10 Index
Citation Counts
26
52
2,859
Photochemistry/photophysics
physical chemistry
materials chemistry
dye sensitized solar cells
hybrid solar cells
Rankings
Ranking Based On Selection: 8
Michael EA Warwick
Metrics
H-Index
i10 Index
Citation Counts
26
38
1,914
Photocatalysis
CVD
Energy Efficency
Thinfilms
Building Modelling
Rankings
Ranking Based On Selection: 9
Martin R Gill
Metrics
H-Index
i10 Index
Citation Counts
24
33
3,240
Inorganic Chemistry
Chemical Biology
Cancer Research
Medicinal Inorganic Chemistry
Rankings
Ranking Based On Selection: 10
Helen Chadwick
Metrics
H-Index
i10 Index
Citation Counts
23
38
1,481
Physical Chemistry
Chemical Physics
Stereodynamics
Gas-surface dynamics
Rankings
Ranking Based On Selection: 11
Moritz F Kuehnel|Moritz Kuehnel
Metrics
H-Index
i10 Index
Citation Counts
22
30
4,066
Solar Fuels
Hydrogen
CO2 Reduction
Biomass
Plastic Waste
Rankings
Ranking Based On Selection: 12
Cécile Charbonneau
Metrics
H-Index
i10 Index
Citation Counts
22
33
1,758
Materials chemistry and engineering
TiO2 nanoparticles
3rd generation photovoltaics
metal oxide films
inorganic synthesis
Rankings
Ranking Based On Selection: 13
Shirin Alexander
Metrics
H-Index
i10 Index
Citation Counts
19
26
1,400
Rankings
Ranking Based On Selection: 14
Jonas Abdel Khalik
Metrics
H-Index
i10 Index
Citation Counts
17
21
1,056
Rankings
Ranking Based On Selection: 15
Jennifer A Rudd
Metrics
H-Index
i10 Index
Citation Counts
15
18
878
Electrochemistry
Photochemistry
Catalysis
CO2 reduction
Materials Chemistry
Rankings
Ranking Based On Selection: 16
Geraint Sullivan
Metrics
H-Index
i10 Index
Citation Counts
7
7
467
Chemistry
analytical chemistry
environmental sciences