Citation Rankings
Highly Cited Researchers
National Hellenic Research Foundation Highly Cited Researchers Citation Engineering & Technology Rankings 2025
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
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,194
1,214
0.196
* Total Citation Counts Rankings
Ranking Based On Selection :2
nanomaterials
polymers
renewable energy
life sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,243
1,606
0.379
* Total Citation Counts Rankings
Ranking Based On Selection :3
Organic conductors
Low dimentional materials
sensors
fluorescence spectroscopy
metal oxide thin film
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,173
1,133
0.357
* Total Citation Counts Rankings
Ranking Based On Selection :4
Materials Synthesis
Crystallography
Solar Cells
Thermoelectrics
Luminescence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,771
2,152
0.777
* Total Citation Counts Rankings
Ranking Based On Selection :5
Electronic structure calculations
Materials modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,737
1,350
0.493
* Total Citation Counts Rankings
Ranking Based On Selection :6
Photonic nanoscience and nanotechnologies and surface processing
Photonic quantum and size effects at the nanoscale
Biophotoni
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,616
612
0.234
* Total Citation Counts Rankings
Ranking Based On Selection :7
complexity
quantum physics
biophysics
surfaces
nanosciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,039
425
0.208
* Total Citation Counts Rankings
Ranking Based On Selection :8
Optical Fibers
Photonic Crystal Fibers
Tapered Fibers
Optical Micro-Fibers
Photonic Materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,898
295
0.155
* Total Citation Counts Rankings
Ranking Based On Selection :9
Artificial Intelligence
Bioinformatics
Image Processing
Optimization
Biomedical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,581
687
0.435
* Total Citation Counts Rankings
Ranking Based On Selection :10
Biomaterials
Soft matter
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,443
823
0.570
* Total Citation Counts Rankings
Ranking Based On Selection :11
Electronic Structure
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
909
112
0.123
* Total Citation Counts Rankings
Ranking Based On Selection :12
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
741
669
0.903
* Total Citation Counts Rankings
Ranking Based On Selection :13
Machine Learning
Deep Learning
Drug Repurposing
Omics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44
44
1.000
* Total Citation Counts Rankings
Rankings
161,660
1,088
8
Ranking Based On Selection: 1
George C. Papavassiliou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,194
1,214
0.196
* Total Citation Counts Rankings
Rankings
232,909
1,750
11
Ranking Based On Selection: 2
Vasilis Gregoriou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,243
1,606
0.379
nanomaterials
polymers
renewable energy
life sciences
* Total Citation Counts Rankings
Rankings
300,481
2,376
17
Ranking Based On Selection: 3
Georgios Mousdis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,173
1,133
0.357
Organic conductors
Low dimentional materials
sensors
fluorescence spectroscopy
metal oxide thin film
* Total Citation Counts Rankings
Rankings
335,907
2,691
22
Ranking Based On Selection: 4
Andreas Kaltzoglou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,771
2,152
0.777
Materials Synthesis
Crystallography
Solar Cells
Thermoelectrics
Luminescence
* Total Citation Counts Rankings
Rankings
339,339
2,730
23
Ranking Based On Selection: 5
Emmanuel Klontzas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,737
1,350
0.493
Electronic structure calculations
Materials modeling
* Total Citation Counts Rankings
Rankings
351,803
2,848
27
Ranking Based On Selection: 6
Evangelia Sarantopoulou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,616
612
0.234
Photonic nanoscience and nanotechnologies and surface processing
Photonic quantum and size effects at the nanoscale
Biophotoni
* Total Citation Counts Rankings
Rankings
424,679
3,529
35
Ranking Based On Selection: 7
AC Cefalas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,039
425
0.208
complexity
quantum physics
biophysics
surfaces
nanosciences
* Total Citation Counts Rankings
Rankings
447,270
3,741
39
Ranking Based On Selection: 8
George Kakarantzas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,898
295
0.155
Optical Fibers
Photonic Crystal Fibers
Tapered Fibers
Optical Micro-Fibers
Photonic Materials
* Total Citation Counts Rankings
Rankings
506,586
4,294
42
Ranking Based On Selection: 9
Ioannis Valavanis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,581
687
0.435
Artificial Intelligence
Bioinformatics
Image Processing
Optimization
Biomedical Engineering
* Total Citation Counts Rankings
Rankings
537,372
4,549
45
Ranking Based On Selection: 10
Aristeidis Papagiannopoulos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,443
823
0.570
Biomaterials
Soft matter
* Total Citation Counts Rankings
Rankings
700,847
5,827
58
Ranking Based On Selection: 11
Naoum Bacalis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
909
112
0.123
* Total Citation Counts Rankings
Rankings
772,876
6,382
63
Ranking Based On Selection: 12
Thalia Tsiaka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
741
669
0.903
* Total Citation Counts Rankings
Rankings
1,844,887
11,010
90
Ranking Based On Selection: 13
Sotiris Ouzounis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44
44
1.000
Machine Learning
Deep Learning
Drug Repurposing
Omics