Productivity Rankings is an exclusive service provided by AD Scientific Index. This ranking system, derived from the i10 index, highlights the productivity of scientists in publishing impactful scientific articles. Productivity Rankings serves as a tool to identify highly productive scientists across specific areas, disciplines, universities, and countries, and supports the creation of effective incentives and academic policies. The global, regional, and institutional rankings of scientists in this table are calculated based on their total i10 index. Moreover, you can explore special rankings derived from Productivity Rankings, such as Scientists Last 6 Years' i10 Index, Universities Total i10 Index Rankings 2025, Universities Last 6 Years' i10 Index Rankings 2025, Art and Humanities i10 Productivity Rankings, and Social Sciences and Humanities i10 Productivity Rankings.
* Total i10 IndexRankings
Ranking Based On Selection :1
nanophosphors
luminescence
cathodoluminescence
surface characterization
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
612
487
0.796
* Total i10 IndexRankings
Ranking Based On Selection :2
Chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
227
159
0.700
* Total i10 IndexRankings
Ranking Based On Selection :3
Pollen analysis
palaeoscience
palynology
palaeoecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
153
109
0.712
* Total i10 IndexRankings
Ranking Based On Selection :4
coordination chemistry
reaction mechanisms
crystallography
catalysis
radiopharmacy models
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
148
34
0.230
* Total i10 IndexRankings
Ranking Based On Selection :5
Reliability theory-stochastic modeling
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
141
90
0.638
* Total i10 IndexRankings
Ranking Based On Selection :6
Physics
Astrophysics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
140
107
0.764
* Total i10 IndexRankings
Ranking Based On Selection :7
higher education and development
social justice
development ethics
capability approach
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
124
94
0.758
* Total i10 IndexRankings
Ranking Based On Selection :8
housing
small towns
mining towns
public health
children
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
118
81
0.686
* Total i10 IndexRankings
Ranking Based On Selection :9
Food Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
113
82
0.726
* Total i10 IndexRankings
Ranking Based On Selection :10
Perovskite solar cell
Organic solar cell
DSSC
Gas Sensors
Materials for Energy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
112
103
0.920
* Total i10 IndexRankings
Ranking Based On Selection :11
Condensed Matter Physics
Renewable Energy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
106
86
0.811
* Total i10 IndexRankings
Ranking Based On Selection :12
Stable isotope ecology
Wildlife ecology
Evolutionary ecology
Palaeoecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
99
86
0.869
* Total i10 IndexRankings
Ranking Based On Selection :13
Physics
Semiconductors
Phosphors
Solar Cells
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
90
60
0.667
* Total i10 IndexRankings
Ranking Based On Selection :14
ferrocene
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
39
0.438
* Total i10 IndexRankings
Ranking Based On Selection :15
Arachnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
85
45
0.529
* Total i10 IndexRankings
Ranking Based On Selection :16
Biostatistics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
85
31
0.365
* Total i10 IndexRankings
Ranking Based On Selection :17
Limnology
Ecotoxicology
Integrated Water Resource Management
Water Ecosystem Services
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
82
56
0.683
* Total i10 IndexRankings
Ranking Based On Selection :18
Phytomedicine
Phytopharmacology
Bioactivity
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
69
0.852
* Total i10 IndexRankings
Ranking Based On Selection :19
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
64
0.790
* Total i10 IndexRankings
Ranking Based On Selection :20
Organic Chemistry
Nano Science
Clinical Biochemistry
Exosomes
Extracellular Vesicles
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
78
75
0.962
* Total i10 IndexRankings
Ranking Based On Selection :21
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
63
0.829
* Total i10 IndexRankings
Ranking Based On Selection :22
Agricultural Development Economics and Policy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
56
0.737
* Total i10 IndexRankings
Ranking Based On Selection :23
Pathogenic yeasts
Bioactive lipids
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
73
46
0.630
* Total i10 IndexRankings
Ranking Based On Selection :24
Water resources management
Water accounting
Water Footprint
Food
Irrigation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
70
56
0.800
* Total i10 IndexRankings
Ranking Based On Selection :25
Plant Pathology
soil ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
70
25
0.357
HC Swart
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
612
487
0.796
nanophosphors
luminescence
cathodoluminescence
surface characterization
Jeanet Conradie
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
227
159
0.700
Louis Scott
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
153
109
0.712
Pollen analysis
palaeoscience
palynology
palaeoecology
Andreas Roodt
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
148
34
0.230
coordination chemistry
reaction mechanisms
crystallography
catalysis
radiopharmacy models
Maxim Finkelstein
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
141
90
0.638
Reliability theory-stochastic modeling
Petrus Johannes Meintjes
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
140
107
0.764
Melanie Walker
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
124
94
0.758
higher education and development
social justice
development ethics
capability approach
Lochner Marais
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
118
81
0.686
housing
small towns
mining towns
public health
children
Arno Hugo
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
113
82
0.726
Vinod Kumar
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
112
103
0.920
Perovskite solar cell
Organic solar cell
DSSC
Gas Sensors
Materials for Energy
Francis Birhanu Dejene
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
106
86
0.811
Daryl Codron
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
99
86
0.869
Stable isotope ecology
Wildlife ecology
Evolutionary ecology
Palaeoecology
Elizabeth Coetsee
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
90
60
0.667
Physics
Semiconductors
Phosphors
Solar Cells
Jannie Swarts
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
39
0.438
Charles Haddad
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
85
45
0.529
Robert Schall
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
85
31
0.365
Paul J Oberholster
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
82
56
0.683
Limnology
Ecotoxicology
Integrated Water Resource Management
Water Ecosystem Services
Tom Ashafa
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
69
0.852
Phytomedicine
Phytopharmacology
Bioactivity
M Gryzenhout
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
64
0.790
Anand Krishnan
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
78
75
0.962
Organic Chemistry
Nano Science
Clinical Biochemistry
Exosomes
Extracellular Vesicles
Felicity Burt
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
63
0.829
Edilegnaw Wale
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
56
0.737
Agricultural Development Economics and Policy
Carolina Pohl
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
73
46
0.630
Pathogenic yeasts
Bioactive lipids
Ashok Chapagain
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
70
56
0.800
Water resources management
Water accounting
Water Footprint
Food
Irrigation
Wijnand Swart
University of the Free State
Bloemfontein, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
70
25
0.357