The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the 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
Soluble Semiconductors
Plastic Electronics
Molecular Electronic Materials & Devices
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99,764
14,847
0.149
* Total Citation Counts Rankings
Ranking Based On Selection :2
Water Treatment
Waste to Value-added Products
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
95,009
40,449
0.426
* Total Citation Counts Rankings
Ranking Based On Selection :3
Environmental Engineering
Green Chemistry
Chemical Engineering
Water Treatment
Environmental
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
88,714
64,592
0.728
* Total Citation Counts Rankings
Ranking Based On Selection :4
Applied AI/ML
Smart Cities
Internet of Things
Smart Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
80,296
65,095
0.811
* Total Citation Counts Rankings
Ranking Based On Selection :5
solar energy
organic electronics
polymer semiconductors
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71,178
38,239
0.537
* Total Citation Counts Rankings
Ranking Based On Selection :6
Reactor Design
Adsorption
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,549
37,000
0.524
* Total Citation Counts Rankings
Ranking Based On Selection :7
Nanomaterials
Energy Storage
Nanoelectronics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,156
47,015
0.744
* Total Citation Counts Rankings
Ranking Based On Selection :8
Nanoclusters
Quantum Dots
Perovskites
Optoelectronics
Solar Cells
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,755
42,061
0.797
* Total Citation Counts Rankings
Ranking Based On Selection :9
machine learning
artificial intelligence
statistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,605
26,269
0.540
* Total Citation Counts Rankings
Ranking Based On Selection :10
Control Systems
Operations Research
Computer Science
Aerospace Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,322
11,849
0.245
* Total Citation Counts Rankings
Ranking Based On Selection :11
Renewable Energy
Energy Storage Systems
CAD and Design
Smart Materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,024
36,140
0.803
* Total Citation Counts Rankings
Ranking Based On Selection :12
Diabetes
obesity
glycation
methylglyoxal
glyoxalase
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,067
13,197
0.299
* Total Citation Counts Rankings
Ranking Based On Selection :13
Corrosion
Corrosion Inhibitors
Green Chemistry
Electrochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,096
27,732
0.659
* Total Citation Counts Rankings
Ranking Based On Selection :14
Database Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,905
22,053
0.526
* Total Citation Counts Rankings
Ranking Based On Selection :15
nanomaterials
nanotechnology
soft electronics & sensors
solar energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,341
24,848
0.601
* Total Citation Counts Rankings
Ranking Based On Selection :16
AI
Deep Learning
Compiler Design
Intelligent Tutoring Systems
Knowledge Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,397
30,207
0.767
* Total Citation Counts Rankings
Ranking Based On Selection :17
Artificial Intelligence
swarm optimization
Green Science
Metaverses
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,853
30,049
0.794
* Total Citation Counts Rankings
Ranking Based On Selection :18
Nanoscience and Nanotechnology
Sensors
Catalysis
Energy
Electronic Devices
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,872
22,903
0.657
* Total Citation Counts Rankings
Ranking Based On Selection :19
Serious Games
Adaptive Learning
Data Mining
Networking
Security
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,592
32,365
0.963
* Total Citation Counts Rankings
Ranking Based On Selection :20
Cybersecurity
AI for Cybersecurity
Digital Authentication
IoT Security
Security and Privacy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,520
23,372
0.719
* Total Citation Counts Rankings
Ranking Based On Selection :21
photovoltaics
solar cells
semiconductors
materials science
interfaces
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,071
22,704
0.708
* Total Citation Counts Rankings
Ranking Based On Selection :22
computer vision
machine learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,550
26,683
0.846
* Total Citation Counts Rankings
Ranking Based On Selection :23
Sediments. Fractured rocks. Complex fluids. Energy GeoEngineering. Geotechnical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,826
15,948
0.517
* Total Citation Counts Rankings
Ranking Based On Selection :24
CFD
Biomaths
numercial
fractional calculus
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,321
25,449
0.839
* Total Citation Counts Rankings
Ranking Based On Selection :25
Membranes
membrane separations
polymer synthesis
chemical engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,613
12,919
0.436
Donal Bradley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99,764
14,847
0.149
Soluble Semiconductors
Plastic Electronics
Molecular Electronic Materials & Devices
Gordon Mckay
Hamad Bin Khalifa University
Ar-Rayyan, Qatar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
95,009
40,449
0.426
Water Treatment
Waste to Value-added Products
Mika Sillanpää
King Saud University
Riyadh, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
88,714
64,592
0.728
Environmental Engineering
Green Chemistry
Chemical Engineering
Water Treatment
Environmental
Mohsen Guizani
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
80,296
65,095
0.811
Applied AI/ML
Smart Cities
Internet of Things
Smart Health
Iain Mcculloch
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71,178
38,239
0.537
solar energy
organic electronics
polymer semiconductors
Bassim H Hameed
Qatar University
Katar, Qatar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,549
37,000
0.524
Reactor Design
Adsorption
Husam N Alshareef
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,156
47,015
0.744
Nanomaterials
Energy Storage
Nanoelectronics
Osman Bakr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,755
42,061
0.797
Nanoclusters
Quantum Dots
Perovskites
Optoelectronics
Solar Cells
Lawrence Carin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,605
26,269
0.540
machine learning
artificial intelligence
statistics
Eric Feron
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,322
11,849
0.245
Control Systems
Operations Research
Computer Science
Aerospace Engineering
Abdul-Ghani Olabi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,024
36,140
0.803
Renewable Energy
Energy Storage Systems
CAD and Design
Smart Materials
Paul Thornalley
Hamad Bin Khalifa University
Ar-Rayyan, Qatar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,067
13,197
0.299
Diabetes
obesity
glycation
methylglyoxal
glyoxalase
MA Quraishi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,096
27,732
0.659
Corrosion
Corrosion Inhibitors
Green Chemistry
Electrochemistry
Ahmed Elmagarmid
Qatar Foundation
Ar-Rayyan, Qatar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,905
22,053
0.526
Thomas Anthopoulos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,341
24,848
0.601
nanomaterials
nanotechnology
soft electronics & sensors
solar energy
Samy S Abu Naser|سامي سليم ابوناصر
Al Azhar University of Gaza
Helsinki, Palestine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,397
30,207
0.767
AI
Deep Learning
Compiler Design
Intelligent Tutoring Systems
Knowledge Management
Aboul Ella Hassanien Ali
Cairo University
Giza, Egypt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,853
30,049
0.794
Artificial Intelligence
swarm optimization
Green Science
Metaverses
Ahmad Umar
Najran University
Najran, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,872
22,903
0.657
Nanoscience and Nanotechnology
Sensors
Catalysis
Energy
Electronic Devices
Aso Darwesh
University of Human Development
Sulaymaniyah, Iraq
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,592
32,365
0.963
Serious Games
Adaptive Learning
Data Mining
Networking
Security
Muhammad Khurram Khan
King Saud University
Riyadh, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,520
23,372
0.719
Cybersecurity
AI for Cybersecurity
Digital Authentication
IoT Security
Security and Privacy
Stefaan De Wolf
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,071
22,704
0.708
photovoltaics
solar cells
semiconductors
materials science
interfaces
Bernard Ghanem
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,550
26,683
0.846
computer vision
machine learning
J Carlos Santamarina
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,826
15,948
0.517
Sediments. Fractured rocks. Complex fluids. Energy GeoEngineering. Geotechnical Engineering
Ilyas Khan|I. Khan, Khan. I, Khan Ilyas
Majmaah University
Al Majma'ah, Saudi Arabia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,321
25,449
0.839
CFD
Biomaths
numercial
fractional calculus
Ingo Pinnau
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,613
12,919
0.436
Membranes
membrane separations
polymer synthesis
chemical engineering