Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Click for "last 6 years' i10 index". Also see: Universities Rankings 2024 (Sort by : Total i10 Index) and Universities Rankings 2024 (Sort by : Last 6 Years i10 Index)
![Qin Fen (Katherine) Zhang](https://cdn.adscientificindex.com/pictures/3c/4418248.jpg)
Hydropower
Renewable Energy
Pumped Storage Hydro Technology Innovation
Hydropower Cost and Economics
Transient Analysis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
623
301
0.483
![Wei Wang(Nrel)](https://cdn.adscientificindex.com/pictures/f8/4384299.jpg)
Bioenergy
Biotechnology
Chemical pretreatment and transformation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
531
427
0.804
![David Ginley](https://cdn.adscientificindex.com/pictures/91/4393954.jpg)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
386
158
0.409
![Arjun Singh](/user/assets/images/profile/no-profile-photo.png)
biofuels
metabolic engineering
genetics
molecular biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
354
136
0.384
![Michael Himmel](https://cdn.adscientificindex.com/pictures/fe/4387502.jpg)
cellulase
biomass
pretreatment
chromatography
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
351
236
0.672
![Mowafak Al-Jassim](/user/assets/images/profile/no-profile-photo.png)
Semiconductors
solar cell materials and devices
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
346
177
0.512
![Sarah Kurtz](/user/assets/images/profile/no-profile-photo.png)
Photovoltaic devices and materials
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
339
170
0.501
![Gregg T Beckham](https://cdn.adscientificindex.com/pictures/bc/4396144.jpg)
Biochemicals
Biofuels
Green Chemistry
Lignin
Plastics Recycling
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
264
261
0.989
![Arthur Nozik](https://cdn.adscientificindex.com/pictures/a5/4391527.jpg)
Energy
Nanoscience
Next Generation Solar Photoconversion
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
224
122
0.545
![Kai Zhu](https://cdn.adscientificindex.com/pictures/e0/4399188.jpg)
Solar Energy Conversion and Storage
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
223
212
0.951
![Anthony K Burrell](/user/assets/images/profile/no-profile-photo.png)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
223
111
0.498
![Dileep Singh](https://cdn.adscientificindex.com/pictures/a5/4418979.jpg)
Materials Science
Energy Storage
Renewable Energy
Ceramics
Additive Manufacturing
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
211
75
0.355
![Daniel J Friedman](https://cdn.adscientificindex.com/pictures/e6/4393694.jpg)
photovoltaics
multijunction solar cells
concentrating photovoltaics
solar cells
thermophotovoltaics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
191
89
0.466
![Matthew C Beard](https://cdn.adscientificindex.com/pictures/7a/4387056.jpg)
Solar energy conversion
Terahertz spectroscopy
Multiple Exciton Generation
Chirality
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
188
170
0.904
![Keith A Emery](https://cdn.adscientificindex.com/pictures/50/4399484.jpg)
Photovoltaics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
186
82
0.441
![Michael Seibert](/user/assets/images/profile/no-profile-photo.png)
photosynthesis
photosystem II reaction center
algae
hydrogen
cell culture
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
186
71
0.382
![Joseph J Berry](https://cdn.adscientificindex.com/pictures/6b/4398815.jpg)
Physics
perovskites
organics
magnetics
materials
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
178
156
0.876
![John Geisz](/user/assets/images/profile/no-profile-photo.png)
solar cells
OMVPE
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
178
93
0.522
![Jason Jonkman](https://cdn.adscientificindex.com/pictures/cc/4397548.jpg)
Wind energy
Wind Power
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
175
151
0.863
![Bri-Mathias Hodge](https://cdn.adscientificindex.com/pictures/f9/4392347.jpg)
Energy Systems Analysis
Renewable Energy Integration
Power Systems
Process Systems Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
174
146
0.839
![Garry Rumbles](https://cdn.adscientificindex.com/pictures/62/4395805.jpg)
photochemistry
solar energy
time-resolved microwave conductivity
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
174
93
0.534
![Ilias Belharouak](https://cdn.adscientificindex.com/pictures/ad/4418306.jpg)
Materials Science
Energy Storage
Batteries
Renewable Energy
Manufacturing
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
173
155
0.896
![Andriy Zakutayev](https://cdn.adscientificindex.com/pictures/b0/4391171.jpg)
high throughput experiments
transparent conductors
materials for energy
materials design
nitrides
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
170
157
0.924
![Vasilis Fthenakis](https://cdn.adscientificindex.com/pictures/c6/4377102.jpg)
Systems Engineering
Photovoltaics
Energy Life Cycles
Mining/Materials Sustainability
Renewable Energy Grid Integration
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
168
107
0.637
![Robert L Mccormick](https://cdn.adscientificindex.com/pictures/7d/4381140.jpg)
chemical engineering - fuel/engine interactions -biofuels - fuels properties - combustion - pollutant emissions - quality stand
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
158
106
0.671
Qin Fen (Katherine) Zhang
Oak Ridge National Laboratory
Oak Ridge, United States
![United States](/flags/us.png)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
623
301
0.483
Hydropower
Renewable Energy
Pumped Storage Hydro Technology Innovation
Hydropower Cost and Economics
Transient Analysis
Wei Wang(Nrel)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
531
427
0.804
Bioenergy
Biotechnology
Chemical pretreatment and transformation
David Ginley
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
386
158
0.409
Arjun Singh
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
354
136
0.384
biofuels
metabolic engineering
genetics
molecular biology
Michael Himmel
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
351
236
0.672
Mowafak Al-Jassim
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
346
177
0.512
Semiconductors
solar cell materials and devices
Sarah Kurtz
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
339
170
0.501
Photovoltaic devices and materials
Gregg T Beckham
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
264
261
0.989
Biochemicals
Biofuels
Green Chemistry
Lignin
Plastics Recycling
Arthur Nozik
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
224
122
0.545
Energy
Nanoscience
Next Generation Solar Photoconversion
Kai Zhu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
223
212
0.951
Solar Energy Conversion and Storage
Anthony K Burrell
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
223
111
0.498
Dileep Singh
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
211
75
0.355
Materials Science
Energy Storage
Renewable Energy
Ceramics
Additive Manufacturing
Daniel J Friedman
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
191
89
0.466
photovoltaics
multijunction solar cells
concentrating photovoltaics
solar cells
thermophotovoltaics
Matthew C Beard
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
188
170
0.904
Solar energy conversion
Terahertz spectroscopy
Multiple Exciton Generation
Chirality
Keith A Emery
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
186
82
0.441
Michael Seibert
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
186
71
0.382
photosynthesis
photosystem II reaction center
algae
hydrogen
cell culture
Joseph J Berry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
178
156
0.876
Physics
perovskites
organics
magnetics
materials
John Geisz
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
178
93
0.522
Jason Jonkman
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
175
151
0.863
Bri-Mathias Hodge
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
174
146
0.839
Energy Systems Analysis
Renewable Energy Integration
Power Systems
Process Systems Engineering
Garry Rumbles
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
174
93
0.534
photochemistry
solar energy
time-resolved microwave conductivity
Ilias Belharouak
Oak Ridge National Laboratory
Oak Ridge, United States
![United States](/flags/us.png)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
173
155
0.896
Materials Science
Energy Storage
Batteries
Renewable Energy
Manufacturing
Andriy Zakutayev
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
170
157
0.924
high throughput experiments
transparent conductors
materials for energy
materials design
nitrides
Vasilis Fthenakis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
168
107
0.637
Systems Engineering
Photovoltaics
Energy Life Cycles
Mining/Materials Sustainability
Renewable Energy Grid Integration
Robert L Mccormick
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
158
106
0.671
chemical engineering - fuel/engine interactions -biofuels - fuels properties - combustion - pollutant emissions - quality stand