Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 2.969 Scientists Citation Rankings (Sort by last 6 years Citation Index) - 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.
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
Retinal disease
diabetes
hypertension
artificial intelligenc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
276,403
154,671
0.560
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* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
Crossfield
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
210,177
107,564
0.512
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
molecular imaging
nanomedicine
drug and gene delivery
theranostics
radiopharmaceutical
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
161,616
92,357
0.571
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
Wireless Communications
MIMO
Cognitive Radio
Wireless Power Transfer
UA
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
108,299
72,991
0.674
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
Global Mental Health
functional near infrared spectroscopy
COVID-19
Depression
Meta-analysi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,968
68,499
0.902
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
computer vision
machine learnin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72,497
63,932
0.882
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
Multimedia Information Retrieval
Live Social Media Analysi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
86,074
60,151
0.699
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 8
Electromagnetics
metaphotonics
low-dimensional material optic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,655
46,873
0.786
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 9
graphene
2-D materials
surface science
covalent organic framewok
batterie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
93,640
45,370
0.485
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* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 10
hypertension
kidney diseas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87,413
45,327
0.519
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 11
Psychiatry-Medicine interface
Depression
Public Mental Healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,488
44,926
0.966
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 12
free radicals
antioxidant
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
275,616
43,494
0.158
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 13
Two-Dimensional Materials
Quantum magnetism
Superconductivity
Strongly Correlated Electron Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
111,829
41,069
0.367
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 14
Cancer Pharmacolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,445
39,049
0.606
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 15
Nutritional Epidemiology
Obesity
Type 2 diabetes
Cardiovascular Disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81,128
35,745
0.441
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 16
Semiconductor
MEMS
Sensor
Actuato
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,285
35,739
0.697
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 17
Photon upconversion
luminescent nanoparticles
Immunotherapy
Catalysis
Scintillator
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66,030
35,516
0.538
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 18
aggregation-induced-emission
conjugated polymer
conjugated polyelectrolyte
sensing and imaging
cancer therap
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,217
34,623
0.531
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 19
Sensor
Nanophotonics
MEMS
Energy Harvesting
AIo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,491
32,226
0.758
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 20
Materials Science and Engineerin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,839
31,045
0.623
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 21
Synchrotron Radiation for Materials Science Application
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,323
29,858
0.953
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 22
Mechanobiology
Wearable Electronics
Microfluidics
Circulating Biomarkers
Flexible Electronic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,794
29,102
0.429
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 23
Brain Imaging
Machine Learning
Neuroscience
Mental Disorder
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,009
29,233
0.731
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 24
dementia
stroke
neuroimaging
biomarkers
clinical trial
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,979
28,610
0.666
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 25
Two-dimensional Polymers
Covalent Organic Frameworks
Chemistry Physics & Material
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,102
27,891
0.618
* Last 6 Years Citation Counts Rankings
Rankings
141
1
1
Ranking Based On Selection: 1
Tien Yin Wong
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
276,403
154,671
0.560
Retinal disease
diabetes
hypertension
artificial intelligenc
* Last 6 Years Citation Counts Rankings
Rankings
531
2
2
Ranking Based On Selection: 2
Seeram Ramakrishna
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
210,177
107,564
0.512
* Last 6 Years Citation Counts Rankings
Rankings
876
3
3
Ranking Based On Selection: 3
Xiaoyuan Shawn Chen
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
161,616
92,357
0.571
molecular imaging
nanomedicine
drug and gene delivery
theranostics
radiopharmaceutical
* Last 6 Years Citation Counts Rankings
Rankings
1,530
6
4
Ranking Based On Selection: 4
Rui Zhang
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
108,299
72,991
0.674
Wireless Communications
MIMO
Cognitive Radio
Wireless Power Transfer
UA
* Last 6 Years Citation Counts Rankings
Rankings
1,721
10
5
Ranking Based On Selection: 5
Roger C Ho
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,968
68,499
0.902
Global Mental Health
functional near infrared spectroscopy
COVID-19
Depression
Meta-analysi
* Last 6 Years Citation Counts Rankings
Rankings
1,923
14
6
Ranking Based On Selection: 6
Jiashi Feng
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72,497
63,932
0.882
computer vision
machine learnin
* Last 6 Years Citation Counts Rankings
Rankings
2,128
16
7
Ranking Based On Selection: 7
Tat Seng Chua
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
86,074
60,151
0.699
* Last 6 Years Citation Counts Rankings
Rankings
3,207
20
8
Ranking Based On Selection: 8
Cheng Wei Qiu
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,655
46,873
0.786
Electromagnetics
metaphotonics
low-dimensional material optic
* Last 6 Years Citation Counts Rankings
Rankings
3,394
22
9
Ranking Based On Selection: 9
Kian Ping Loh
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
93,640
45,370
0.485
graphene
2-D materials
surface science
covalent organic framewok
batterie
* Last 6 Years Citation Counts Rankings
Rankings
3,401
23
10
Ranking Based On Selection: 10
Tazeen Jafar
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87,413
45,327
0.519
Is Your University Ready for the Future?
Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis
* Last 6 Years Citation Counts Rankings
Rankings
3,440
25
11
Ranking Based On Selection: 11
Cyrus Sh Ho
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,488
44,926
0.966
Psychiatry-Medicine interface
Depression
Public Mental Healt
* Last 6 Years Citation Counts Rankings
Rankings
3,611
27
12
Ranking Based On Selection: 12
Barry Halliwell
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
275,616
43,494
0.158
free radicals
antioxidant
* Last 6 Years Citation Counts Rankings
Rankings
3,979
33
13
Ranking Based On Selection: 13
Antonio H Castro Neto
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
111,829
41,069
0.367
Two-Dimensional Materials
Quantum magnetism
Superconductivity
Strongly Correlated Electron Systems
* Last 6 Years Citation Counts Rankings
Rankings
4,305
34
14
Ranking Based On Selection: 14
Gautam Sethi
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,445
39,049
0.606
* Last 6 Years Citation Counts Rankings
Rankings
4,955
38
15
Ranking Based On Selection: 15
Rob M Van Dam
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81,128
35,745
0.441
Nutritional Epidemiology
Obesity
Type 2 diabetes
Cardiovascular Disease
* Last 6 Years Citation Counts Rankings
Rankings
4,958
39
16
Ranking Based On Selection: 16
Tao Wang
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,285
35,739
0.697
Semiconductor
MEMS
Sensor
Actuato
* Last 6 Years Citation Counts Rankings
Rankings
5,003
40
17
Ranking Based On Selection: 17
Xiaogang Liu
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66,030
35,516
0.538
Photon upconversion
luminescent nanoparticles
Immunotherapy
Catalysis
Scintillator
* Last 6 Years Citation Counts Rankings
Rankings
5,207
41
18
Ranking Based On Selection: 18
Bin Liu
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,217
34,623
0.531
aggregation-induced-emission
conjugated polymer
conjugated polyelectrolyte
sensing and imaging
cancer therap
* Last 6 Years Citation Counts Rankings
Rankings
5,822
46
19
Ranking Based On Selection: 19
Chengkuo Lee
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,491
32,226
0.758
Sensor
Nanophotonics
MEMS
Energy Harvesting
AIo
* Last 6 Years Citation Counts Rankings
Rankings
6,178
48
20
Ranking Based On Selection: 20
John Wang
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,839
31,045
0.623
Materials Science and Engineerin
* Last 6 Years Citation Counts Rankings
Rankings
6,572
52
21
Ranking Based On Selection: 21
Xi Shibo
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,323
29,858
0.953
Synchrotron Radiation for Materials Science Application
* Last 6 Years Citation Counts Rankings
Rankings
6,819
55
23
Ranking Based On Selection: 22
Chwee Teck CT Lim
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,794
29,102
0.429
Mechanobiology
Wearable Electronics
Microfluidics
Circulating Biomarkers
Flexible Electronic
* Last 6 Years Citation Counts Rankings
Rankings
6,781
54
22
Ranking Based On Selection: 23
BT Thomas Yeo
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,009
29,233
0.731
Brain Imaging
Machine Learning
Neuroscience
Mental Disorder
* Last 6 Years Citation Counts Rankings
Rankings
6,991
56
24
Ranking Based On Selection: 24
Christopher Chen
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,979
28,610
0.666
dementia
stroke
neuroimaging
biomarkers
clinical trial
* Last 6 Years Citation Counts Rankings
Rankings
7,311
61
25
Ranking Based On Selection: 25
Donglin Jiang
National University of Singapore
Queenstown, Singapore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,102
27,891
0.618
Two-dimensional Polymers
Covalent Organic Frameworks
Chemistry Physics & Material