Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Total Citation Counts Rankings
Ranking Based On Selection :1
Materials Science
Nanotechnology
Water Purification
Renewable Energy
Entrepreneurship
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,534
1,542
0.609
* Total Citation Counts Rankings
Ranking Based On Selection :2
Materials
Solar energy
Photovoltaics
Smart window coatings
Nanotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,725
724
0.420
* Total Citation Counts Rankings
Ranking Based On Selection :3
Desalination
composite materials
CO2 capture
Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,450
1,196
0.825
* Total Citation Counts Rankings
Ranking Based On Selection :4
Bio-fuels
Solar energy applications and Drying technologies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,106
799
0.722
* Total Citation Counts Rankings
Ranking Based On Selection :5
Materials Science and Engineering
Metallurgy
and Casting Technologies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,105
335
0.303
* Total Citation Counts Rankings
Ranking Based On Selection :6
Materials Science and Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
920
398
0.433
* Total Citation Counts Rankings
Ranking Based On Selection :7
Materials Science
Energy Materials
Quantum Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
655
477
0.728
* Total Citation Counts Rankings
Ranking Based On Selection :8
Materials Chemistry
Polymer Chemistry
Phytochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
336
288
0.857
* Total Citation Counts Rankings
Ranking Based On Selection :9
Materials Science and Renewable Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
302
278
0.921
* Total Citation Counts Rankings
Ranking Based On Selection :10
Materials for Solar Energy Applications
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
286
116
0.406
* Total Citation Counts Rankings
Ranking Based On Selection :11
Computational
Materials Science
Drug Design and Discovery
Mathematical Modelling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
217
207
0.954
* Total Citation Counts Rankings
Ranking Based On Selection :12
Materials science
electrochemistry
Microscopy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
173
162
0.936
* Total Citation Counts Rankings
Ranking Based On Selection :13
Materials science and Engineering
Renewable Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
135
81
0.600
* Total Citation Counts Rankings
Ranking Based On Selection :14
Structural materials
Concrete
timber design
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
106
99
0.934
* Total Citation Counts Rankings
Ranking Based On Selection :15
Materials science and engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61
61
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :16
renewable energy
metallurgy
mineral processing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59
55
0.932
* Total Citation Counts Rankings
Ranking Based On Selection :17
Material Science and Engineering
Nano Technology
Polymer
Textile and Dye chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47
47
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :18
Material Science
Physical Chemistry and Natural Products
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42
42
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :19
Mineral Processing
Extractive Metallurgy
Heat treatment
Residual stresses
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29
24
0.828
* Total Citation Counts Rankings
Ranking Based On Selection :20
ESL/EFL learning and teaching
ESL/EFL learning materials
Language and Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21
20
0.952
* Total Citation Counts Rankings
Ranking Based On Selection :21
Green and Sustainable Construction Materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20
13
0.650
* Total Citation Counts Rankings
Ranking Based On Selection :22
Electromagnetic Simulations
Antenna Design
Metamaterials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16
16
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :23
Extractive Metallurgy
Mineral Processing-Froth Flotation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14
8
0.571
* Total Citation Counts Rankings
Ranking Based On Selection :24
concrete and Geopolymers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13
13
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :25
Materials Science
Physical Chemistry
Dye-sensitized Solar Cells
Computational Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11
8
0.727
Askwar Hilonga
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,534
1,542
0.609
Materials Science
Nanotechnology
Water Purification
Renewable Energy
Entrepreneurship
Nuru Mlyuka
University of Dar Es Salaam
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,725
724
0.420
Materials
Solar energy
Photovoltaics
Smart window coatings
Nanotechnology
Yusufu Abeid Chande Jande
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,450
1,196
0.825
Desalination
composite materials
CO2 capture
Energy
Thomas Thomas Kivevele
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,106
799
0.722
Bio-fuels
Solar energy applications and Drying technologies
Christian Nyahumwa
University of Dar Es Salaam
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,105
335
0.303
Materials Science and Engineering
Metallurgy
and Casting Technologies
Ndazi Bwire
University of Dar Es Salaam
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
920
398
0.433
Materials Science and Engineering
Tatiana Pogrebnaya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
655
477
0.728
Materials Science
Energy Materials
Quantum Chemistry
Mtabazi Geofrey Sahini
University of Dodoma
Dodoma, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
336
288
0.857
Materials Chemistry
Polymer Chemistry
Phytochemistry
Benard Mwankemwa
University of Dodoma
Dodoma, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
302
278
0.921
Materials Science and Renewable Energy
M E. Samiji
University of Dar Es Salaam
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
286
116
0.406
Materials for Solar Energy Applications
Geradius Deogratias Kikumi
University of Dar Es Salaam
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
217
207
0.954
Computational
Materials Science
Drug Design and Discovery
Mathematical Modelling
Nathan Komba
University of Dar Es Salaam
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
173
162
0.936
Materials science
electrochemistry
Microscopy
Mahamudu Mtebwa
University of Dar Es Salaam
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
135
81
0.600
Materials science and Engineering
Renewable Energy
Hieronimi Mboya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
106
99
0.934
Structural materials
Concrete
timber design
Wilson Mahene
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61
61
1.000
Materials science and engineering
Deodatus Kazawadi
University of Dodoma
Dodoma, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59
55
0.932
renewable energy
metallurgy
mineral processing
Joshua Oyetade
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47
47
1.000
Material Science and Engineering
Nano Technology
Polymer
Textile and Dye chemistry
David Mihayo
University of Dodoma
Dodoma, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42
42
1.000
Material Science
Physical Chemistry and Natural Products
Richard Katemi
University of Dar Es Salaam
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29
24
0.828
Mineral Processing
Extractive Metallurgy
Heat treatment
Residual stresses
John Biseko
University of Dodoma
Dodoma, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21
20
0.952
ESL/EFL learning and teaching
ESL/EFL learning materials
Language and Education
Hashimu Hamisi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20
13
0.650
Green and Sustainable Construction Materials
Ulomi George S.
University of Dodoma
Dodoma, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16
16
1.000
Electromagnetic Simulations
Antenna Design
Metamaterials
Faustine Ngoroma
University of Dar Es Salaam
Dar es Salaam, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14
8
0.571
Extractive Metallurgy
Mineral Processing-Froth Flotation
Safiel Chambua
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13
13
1.000
concrete and Geopolymers
Ismail Abubakari
University of Dodoma
Dodoma, Tanzania
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11
8
0.727
Materials Science
Physical Chemistry
Dye-sensitized Solar Cells
Computational Chemistry