Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Art, Design and Architecture, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
* Total Citation Counts Rankings
World Rank
230,182
Country Rank
86
Institution Rank : 17
![](https://cdn.adscientificindex.com/logos/11281.jpg)
![Sri Lanka](/flags/lk.png)
![Rmg Rajapakse](https://cdn.adscientificindex.com/pictures/d3/418521.jpg)
Nanotechnology
Advanced Materials
Solar Cells
Targeted Drug Delivery
andPhoton upconversion
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,314
2,437
0.565
* Total Citation Counts Rankings
World Rank
269,446
Country Rank
103
Institution Rank : 21
![](https://cdn.adscientificindex.com/logos/11281.jpg)
![Sri Lanka](/flags/lk.png)
![Chandani Perera](https://cdn.adscientificindex.com/pictures/2b/301059.jpg)
Physical Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,622
550
0.152
* Total Citation Counts Rankings
World Rank
274,260
Country Rank
108
Institution Rank : 22
![](https://cdn.adscientificindex.com/logos/11281.jpg)
![Sri Lanka](/flags/lk.png)
![Namal Priyantha](https://cdn.adscientificindex.com/pictures/b6/420078.jpg)
Electrochemistry
Environmental chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,548
1,822
0.514
* Total Citation Counts Rankings
World Rank
311,395
Country Rank
129
Institution Rank : 25
![](https://cdn.adscientificindex.com/logos/11281.jpg)
![Sri Lanka](/flags/lk.png)
![D Nedra Karunaratne](https://cdn.adscientificindex.com/pictures/e4/299187.jpg)
peptides
carbohydrates
antioxidant compounds
drug delivery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,054
1,280
0.419
* Total Citation Counts Rankings
World Rank
339,518
Country Rank
146
Institution Rank : 27
![](https://cdn.adscientificindex.com/logos/11281.jpg)
![Sri Lanka](/flags/lk.png)
![Oliver Ileperuma](/user/assets/images/profile/no-profile-photo.png)
Solar energy
coordination chemistry
air pollution
water pollution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,748
753
0.274
* Total Citation Counts Rankings
World Rank
394,812
Country Rank
187
Institution Rank : 35
![](https://cdn.adscientificindex.com/logos/11281.jpg)
![Sri Lanka](/flags/lk.png)
![Bmr Bandara](/user/assets/images/profile/no-profile-photo.png)
Organic Chemistry
Natural Products
Clays
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,263
601
0.266
* Total Citation Counts Rankings
World Rank
585,356
Country Rank
353
Institution Rank : 69
![](https://cdn.adscientificindex.com/logos/11281.jpg)
![Sri Lanka](/flags/lk.png)
![Athula Bandara](/user/assets/images/profile/no-profile-photo.png)
Surface chemistry
Catalysis
Vibrational spectroscopy
SFG spectroscopy
water and interface chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,265
328
0.259
* Total Citation Counts Rankings
World Rank
618,514
Country Rank
386
Institution Rank : 78
![](https://cdn.adscientificindex.com/logos/11281.jpg)
![Sri Lanka](/flags/lk.png)
![Swarna Wimalasiri Kms Wimalasiri](https://cdn.adscientificindex.com/pictures/b6/436428.jpg)
Carbohydrate chemistry
Food Analysis
Bioactive natural products
Nutrition and human health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,151
613
0.533
* Total Citation Counts Rankings
World Rank
670,884
Country Rank
446
Institution Rank : 97
![](https://cdn.adscientificindex.com/logos/11281.jpg)
![Sri Lanka](/flags/lk.png)
![Ayanthi Navaratne](/user/assets/images/profile/no-profile-photo.png)
Biosensors
Clinical Analysis
Pesticide Chemistry
Environmental Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
995
612
0.615
* Total Citation Counts Rankings
World Rank
670,012
Country Rank
444
Institution Rank : 95
![](https://cdn.adscientificindex.com/logos/11281.jpg)
![Sri Lanka](/flags/lk.png)
![Anura Wickramasinghe](/user/assets/images/profile/no-profile-photo.png)
Organic Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
998
211
0.211
* Total Citation Counts Rankings
World Rank
799,066
Country Rank
645
Institution Rank : 133
![](https://cdn.adscientificindex.com/logos/11281.jpg)
![Sri Lanka](/flags/lk.png)
![Ishanie Rangeeka Perera](https://cdn.adscientificindex.com/pictures/c0/358777.jpg)
Coordination polymers
Photovoltaics
Photocatalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
693
477
0.688
* Total Citation Counts Rankings
World Rank
1,059,290
Country Rank
1,028
Institution Rank : 180
![](https://cdn.adscientificindex.com/logos/11281.jpg)
![Sri Lanka](/flags/lk.png)
![ACA Jayasundera](https://cdn.adscientificindex.com/pictures/67/4306028.jpg)
Solid State Chemistry
Environmental Chemistry and Chemical Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
289
243
0.841
* Total Citation Counts Rankings
World Rank
1,390,559
Country Rank
2,352
Institution Rank : 344
![](https://cdn.adscientificindex.com/logos/11281.jpg)
![Sri Lanka](/flags/lk.png)
![Dinushi Samarajeewa|D.R. Samrajeewa](/user/assets/images/profile/no-profile-photo.png)
Analytical Chemistry
Peptides
SWNTs
Environmental Chemistry
Water Purification
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
104
74
0.712
* Total Citation Counts Rankings
World Rank
1,403,440
Country Rank
2,413
Institution Rank : 347
![](https://cdn.adscientificindex.com/logos/11281.jpg)
![Sri Lanka](/flags/lk.png)
![Wijendra Jayalath Bandara](/user/assets/images/profile/no-profile-photo.png)
Solar cells
Dielectrics
Chemical Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
100
77
0.770
* Total Citation Counts Rankings
World Rank
1,803,283
Country Rank
4,190
Institution Rank : 495
![](https://cdn.adscientificindex.com/logos/11281.jpg)
![Sri Lanka](/flags/lk.png)
![Dinushka Wickramasinghe](/pictures/27/4749896.jpg)
Clinical chemistry
Haematology
Laboratory quality assurance & accreditation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27
21
0.778
* Total Citation Counts Rankings
World Rank
1,857,946
Country Rank
4,271
Institution Rank : 501
![](https://cdn.adscientificindex.com/logos/11281.jpg)
![Sri Lanka](/flags/lk.png)
![Apgmv Samaraweera](/pictures/91/5057575.jpg)
Water Quality
Environmental Pollution
Environmental Analysis
Biosorption
Wastewater treatment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21
21
1.000
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
230,182
![Sri Lanka](/flags/lk.png)
86
![](https://cdn.adscientificindex.com/logos/11281.jpg)
17
Rmg Rajapakse
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,314
2,437
0.565
![](https://cdn.adscientificindex.com/logos/11281.jpg)
Nanotechnology
Advanced Materials
Solar Cells
Targeted Drug Delivery
andPhoton upconversion
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
269,446
![Sri Lanka](/flags/lk.png)
103
![](https://cdn.adscientificindex.com/logos/11281.jpg)
21
Chandani Perera
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,622
550
0.152
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
274,260
![Sri Lanka](/flags/lk.png)
108
![](https://cdn.adscientificindex.com/logos/11281.jpg)
22
Namal Priyantha
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,548
1,822
0.514
![](https://cdn.adscientificindex.com/logos/11281.jpg)
Electrochemistry
Environmental chemistry
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
311,395
![Sri Lanka](/flags/lk.png)
129
![](https://cdn.adscientificindex.com/logos/11281.jpg)
25
D Nedra Karunaratne
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,054
1,280
0.419
![](https://cdn.adscientificindex.com/logos/11281.jpg)
peptides
carbohydrates
antioxidant compounds
drug delivery
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
339,518
![Sri Lanka](/flags/lk.png)
146
![](https://cdn.adscientificindex.com/logos/11281.jpg)
27
Oliver Ileperuma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,748
753
0.274
![](https://cdn.adscientificindex.com/logos/11281.jpg)
Solar energy
coordination chemistry
air pollution
water pollution
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
394,812
![Sri Lanka](/flags/lk.png)
187
![](https://cdn.adscientificindex.com/logos/11281.jpg)
35
Bmr Bandara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,263
601
0.266
![](https://cdn.adscientificindex.com/logos/11281.jpg)
Organic Chemistry
Natural Products
Clays
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
585,356
![Sri Lanka](/flags/lk.png)
353
![](https://cdn.adscientificindex.com/logos/11281.jpg)
69
Athula Bandara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,265
328
0.259
![](https://cdn.adscientificindex.com/logos/11281.jpg)
Surface chemistry
Catalysis
Vibrational spectroscopy
SFG spectroscopy
water and interface chemistry
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
618,514
![Sri Lanka](/flags/lk.png)
386
![](https://cdn.adscientificindex.com/logos/11281.jpg)
78
Swarna Wimalasiri Kms Wimalasiri
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,151
613
0.533
![](https://cdn.adscientificindex.com/logos/11281.jpg)
Carbohydrate chemistry
Food Analysis
Bioactive natural products
Nutrition and human health
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
670,884
![Sri Lanka](/flags/lk.png)
446
![](https://cdn.adscientificindex.com/logos/11281.jpg)
97
Ayanthi Navaratne
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
995
612
0.615
![](https://cdn.adscientificindex.com/logos/11281.jpg)
Biosensors
Clinical Analysis
Pesticide Chemistry
Environmental Chemistry
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
670,012
![Sri Lanka](/flags/lk.png)
444
![](https://cdn.adscientificindex.com/logos/11281.jpg)
95
Anura Wickramasinghe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
998
211
0.211
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* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
799,066
![Sri Lanka](/flags/lk.png)
645
![](https://cdn.adscientificindex.com/logos/11281.jpg)
133
Ishanie Rangeeka Perera
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
693
477
0.688
![](https://cdn.adscientificindex.com/logos/11281.jpg)
Coordination polymers
Photovoltaics
Photocatalysis
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,059,290
![Sri Lanka](/flags/lk.png)
1,028
![](https://cdn.adscientificindex.com/logos/11281.jpg)
180
ACA Jayasundera
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
289
243
0.841
![](https://cdn.adscientificindex.com/logos/11281.jpg)
Solid State Chemistry
Environmental Chemistry and Chemical Education
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,390,559
![Sri Lanka](/flags/lk.png)
2,352
![](https://cdn.adscientificindex.com/logos/11281.jpg)
344
Dinushi Samarajeewa|D.R. Samrajeewa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
104
74
0.712
![](https://cdn.adscientificindex.com/logos/11281.jpg)
Analytical Chemistry
Peptides
SWNTs
Environmental Chemistry
Water Purification
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,403,440
![Sri Lanka](/flags/lk.png)
2,413
![](https://cdn.adscientificindex.com/logos/11281.jpg)
347
Wijendra Jayalath Bandara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
100
77
0.770
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,803,283
![Sri Lanka](/flags/lk.png)
4,190
![](https://cdn.adscientificindex.com/logos/11281.jpg)
495
Dinushka Wickramasinghe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27
21
0.778
![](https://cdn.adscientificindex.com/logos/11281.jpg)
Clinical chemistry
Haematology
Laboratory quality assurance & accreditation
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,857,946
![Sri Lanka](/flags/lk.png)
4,271
![](https://cdn.adscientificindex.com/logos/11281.jpg)
501
Apgmv Samaraweera
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21
21
1.000
![](https://cdn.adscientificindex.com/logos/11281.jpg)
Water Quality
Environmental Pollution
Environmental Analysis
Biosorption
Wastewater treatment