Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 113 Scientists Citation Rankings - 2025
Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
ELECTROCHEMISTRY
ELECTROANALYTICAL CHEMISTRY MATERIAL SCIENC
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,196
477
0.217
Get Full Access to Premium Data
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Soil Fertility
Plant Nutrition
Environmental Pollution and Remediation
Conservation Agricultur
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,162
1,064
0.492
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Analytical Chemistry
Environmental Chemistry
Environmental Remediation
Renewable Energ
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,941
1,814
0.935
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Vegetation Ecology
Biodiversity
Freshwater Ecology
Ecosystem Services
Ethnobotan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,748
1,623
0.928
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Leadership
commitment
organisational justice
organisational citizenship behaviour
innovative work behaviou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
911
771
0.846
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Graphene
Energy and Materials Scienc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
874
340
0.389
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Entomology
Ecology
Conservation Biology
IPM
Biological contro
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
739
166
0.225
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Genetic Toxicolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
701
203
0.290
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Ethnobotany
biodiversity
medicinal plants
systematic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
691
468
0.677
Smart Institutional Plan
Powerful Insights + Smart Membership = Institutional Success
Unlock 360° Real-Time Institutional Analysis to identify your institution’s strengths and areas for improvement.
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Analytical Chemistry
sample preparation
chromatography
chemical education
chemical entrepreneurshi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
678
479
0.706
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Semiconductor Physics
Photovoltaics
Renewable Energy
Climate Change Mitigation
Energy Povert
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
614
348
0.567
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Pre-colonial African History
Land and Agrarian Reform
Restitution
Liberation Movement
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
532
230
0.432
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Materials Science
Swift Heavy Ions Irradiation
Nanomaterials
Nanotechnolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
527
220
0.417
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Microelectronics
Energ
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
509
244
0.479
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Agricultural Economics
Agricultural Policy & Economic Development
Climate Change
Rural and Smallholder Farmer Developmen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
438
393
0.897
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Chemical engineerin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
433
194
0.448
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Special/Inclusive Education
Education for Social Justic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
389
322
0.828
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Development Finance
International Economics
Environmental and political economic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
371
307
0.827
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Microbiolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
356
104
0.292
* Total Citation Counts Rankings
Ranking Based On Selection: 20
error analysis
errors and misconceptions
epistemological obstacles
Apos theory
Van Hiele theor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
329
193
0.587
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Teacher education
Teaching in higher education
policy developmen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
327
106
0.324
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Agricultural
Medical
Biotechnology
Bioenergy
Environmen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
322
171
0.531
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Mathematics Education
Quality Assurance and Assessmen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
308
67
0.218
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Medicinal plants bioactivt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
304
161
0.530
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Performance Management
HR analytic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
294
151
0.514
* Total Citation Counts Rankings
Rankings
433,002
1
1
Ranking Based On Selection: 1
Hailemichael Alemu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,196
477
0.217
ELECTROCHEMISTRY
ELECTROANALYTICAL CHEMISTRY MATERIAL SCIENC
* Total Citation Counts Rankings
Rankings
437,848
2
2
Ranking Based On Selection: 2
Fisseha Itanna
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,162
1,064
0.492
Soil Fertility
Plant Nutrition
Environmental Pollution and Remediation
Conservation Agricultur
* Total Citation Counts Rankings
Rankings
472,638
3
3
Ranking Based On Selection: 3
Abiodun Olagoke Adeniji
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,941
1,814
0.935
Analytical Chemistry
Environmental Chemistry
Environmental Remediation
Renewable Energ
* Total Citation Counts Rankings
Rankings
507,731
4
4
Ranking Based On Selection: 4
Peter Chatanga
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,748
1,623
0.928
Vegetation Ecology
Biodiversity
Freshwater Ecology
Ecosystem Services
Ethnobotan
* Total Citation Counts Rankings
Rankings
738,143
5
5
Ranking Based On Selection: 5
Peter Khaola
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
911
771
0.846
Leadership
commitment
organisational justice
organisational citizenship behaviour
innovative work behaviou
* Total Citation Counts Rankings
Rankings
753,216
6
6
Ranking Based On Selection: 6
Mopeli Fabiane
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
874
340
0.389
Graphene
Energy and Materials Scienc
* Total Citation Counts Rankings
Rankings
812,121
7
7
Ranking Based On Selection: 7
Mpho Wycliffe Phoofolo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
739
166
0.225
Entomology
Ecology
Conservation Biology
IPM
Biological contro
* Total Citation Counts Rankings
Rankings
830,443
8
8
Ranking Based On Selection: 8
Asita Okorie Asita
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
701
203
0.290
* Total Citation Counts Rankings
Rankings
835,279
9
9
Ranking Based On Selection: 9
Lerato Seleteng Kose
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
691
468
0.677
Ethnobotany
biodiversity
medicinal plants
systematic
* Total Citation Counts Rankings
Rankings
841,924
10
10
Ranking Based On Selection: 10
Mosotho J. George
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
678
479
0.706
Analytical Chemistry
sample preparation
chromatography
chemical education
chemical entrepreneurshi
Smart Institutional Plan
Powerful Insights + Smart Membership = Institutional Success
Unlock 360° Real-Time Institutional Analysis to identify your institution’s strengths and areas for improvement.
* Total Citation Counts Rankings
Rankings
876,561
11
11
Ranking Based On Selection: 11
Molibeli Taele
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
614
348
0.567
Semiconductor Physics
Photovoltaics
Renewable Energy
Climate Change Mitigation
Energy Povert
* Total Citation Counts Rankings
Rankings
931,256
12
12
Ranking Based On Selection: 12
Gerald Chikozho Mazarire
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
532
230
0.432
Pre-colonial African History
Land and Agrarian Reform
Restitution
Liberation Movement
* Total Citation Counts Rankings
Rankings
935,218
13
13
Ranking Based On Selection: 13
Himanshu Narayan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
527
220
0.417
Materials Science
Swift Heavy Ions Irradiation
Nanomaterials
Nanotechnolog
* Total Citation Counts Rankings
Rankings
949,688
14
14
Ranking Based On Selection: 14
Moeketsi Mpholo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
509
244
0.479
Microelectronics
Energ
* Total Citation Counts Rankings
Rankings
1,011,935
16
15
Ranking Based On Selection: 15
Brian Muroyiwa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
438
393
0.897
Agricultural Economics
Agricultural Policy & Economic Development
Climate Change
Rural and Smallholder Farmer Developmen
* Total Citation Counts Rankings
Rankings
1,017,238
17
16
Ranking Based On Selection: 16
Thimothy Thamae
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
433
194
0.448
* Total Citation Counts Rankings
Rankings
1,061,256
18
17
Ranking Based On Selection: 17
Paseka Andrew Mosia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
389
322
0.828
Special/Inclusive Education
Education for Social Justic
* Total Citation Counts Rankings
Rankings
1,080,964
19
18
Ranking Based On Selection: 18
Denis Nfor Yuni|Denis N. Yuni, Denis Yuni, Yuni Nfor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
371
307
0.827
Development Finance
International Economics
Environmental and political economic
* Total Citation Counts Rankings
Rankings
1,098,978
20
19
Ranking Based On Selection: 19
Benard Omondi Abong'o
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
356
104
0.292
* Total Citation Counts Rankings
Rankings
1,131,932
21
20
Ranking Based On Selection: 20
Eunice Kolitsoe Moru
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
329
193
0.587
error analysis
errors and misconceptions
epistemological obstacles
Apos theory
Van Hiele theor
* Total Citation Counts Rankings
Rankings
1,134,827
22
21
Ranking Based On Selection: 21
Pulane Lefoka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
327
106
0.324
Teacher education
Teaching in higher education
policy developmen
* Total Citation Counts Rankings
Rankings
1,141,265
23
22
Ranking Based On Selection: 22
Sissay Bekele Mekbib
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
322
171
0.531
Agricultural
Medical
Biotechnology
Bioenergy
Environmen
* Total Citation Counts Rankings
Rankings
1,160,925
24
23
Ranking Based On Selection: 23
Thabiso Nyabanyaba
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
308
67
0.218
Mathematics Education
Quality Assurance and Assessmen
* Total Citation Counts Rankings
Rankings
1,166,276
25
24
Ranking Based On Selection: 24
Sibusisiwe Magama
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
304
161
0.530
Medicinal plants bioactivt
* Total Citation Counts Rankings
Rankings
1,181,467
26
25
Ranking Based On Selection: 25
Mildred Mahapa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
294
151
0.514