Citation Rankings
Highly Cited Researchers

University of Sri Jayewardenepura Highly Cited Researchers CitationNatural Sciences / Chemical Sciences Rankings 2025

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
Sri Lanka
Anushka Upamali Rajapaksha
Physical Chemistry
Chemical Kinetics
Surface Chemistry
Environmental Science
Environmental
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,122
9,469
0.781
* Total Citation Counts Rankings
Ranking Based On Selection :2
Sri Lanka
Nilwala Kottegoda
nanotechnology
materials science
agriculture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,714
2,294
0.845
* Total Citation Counts Rankings
Ranking Based On Selection :3
Sri Lanka
Narayana Sirimuthu
Raman Spectroscopy
SERS
nanoparticles
nano sensors
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,295
741
0.323
* Total Citation Counts Rankings
Ranking Based On Selection :4
Sri Lanka
Pradeep M Jayaweera
Physical Inorganic Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,604
830
0.517
* Total Citation Counts Rankings
Ranking Based On Selection :5
Sri Lanka
Imalka Munaweera
Inorganic chemistry
Polymeric materials
Nanotechnology
Nanomedicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,573
1,224
0.778
* Total Citation Counts Rankings
Ranking Based On Selection :6
Sri Lanka
AM Abeysekera
Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,002
337
0.336
* Total Citation Counts Rankings
Ranking Based On Selection :8
Sri Lanka
Gayan A. Appuhamillage
3D Printing
Polymer Chemistry
Synthetic Organic Chemistry
Materials Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
467
413
0.884
* Total Citation Counts Rankings
Ranking Based On Selection :9
Sri Lanka
Sdm Chinthaka
Analytical mass spectroscopy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
245
203
0.829
* Total Citation Counts Rankings
Ranking Based On Selection :10
Sri Lanka
Champa D Jayaweera
First interest
Analytical Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
195
132
0.677
* Total Citation Counts Rankings
Ranking Based On Selection :11
Sri Lanka
Chayanika Padumadasa
Chemistry and biological studies of medicinal plants
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
189
159
0.841
* Total Citation Counts Rankings
Ranking Based On Selection :12
Sri Lanka
Mab Prashantha
Applied Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
189
143
0.757
* Total Citation Counts Rankings
Ranking Based On Selection :13
Sri Lanka
Asangi Gannoruwa
Chemistry
Polymer
Natural Rubber
Rubber Chemistry
Nanomaterials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
184
141
0.766
* Total Citation Counts Rankings
Ranking Based On Selection :14
Sri Lanka
Sudantha S Liyanage
Inorganic Chemistry
Inorganic Synthesis
Rubber Chemistry
Water Quality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
144
12
0.083
* Total Citation Counts Rankings
Ranking Based On Selection :15
Sri Lanka
Kg Upul Kumarasinghe
Organic Synthesis
Physical Organic Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
123
106
0.862
* Total Citation Counts Rankings
Ranking Based On Selection :16
Sri Lanka
Suneth Rajapaksha
Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
120
59
0.492
* Total Citation Counts Rankings
Ranking Based On Selection :17
Sri Lanka
Chamika Siriwardhana
Environmental chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59
58
0.983
* Total Citation Counts Rankings
Ranking Based On Selection :18
Sri Lanka
Kumudu Rajapaksha|G.K.M.Rajapaksha, K. Rajapaksha, G. Kumudu M. Rajapaksha
Nanotechnology
Materials Science
Analytical Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49
49
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :19
Sri Lanka
Chamikara Herath
Computational Chemistry
Drug Discovery and Development
Clinical Pharmacy
Medication Management
Medication Safety
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19
19
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :20
Sri Lanka
Pahan Godakumbura
Chemistry
Biochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total Citation Counts Rankings
Rankings
78,057
Sri Lanka
24
2
Ranking Based On Selection: 1
Anushka Upamali Rajapaksha
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,122
9,469
0.781
Physical Chemistry
Chemical Kinetics
Surface Chemistry
Environmental Science
Environmental
* Total Citation Counts Rankings
Rankings
349,041
Sri Lanka
172
13
Ranking Based On Selection: 2
Nilwala Kottegoda
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,714
2,294
0.845
nanotechnology
materials science
agriculture
* Total Citation Counts Rankings
Rankings
397,488
Sri Lanka
209
17
Ranking Based On Selection: 3
Narayana Sirimuthu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,295
741
0.323
Raman Spectroscopy
SERS
nanoparticles
nano sensors
* Total Citation Counts Rankings
Rankings
511,717
Sri Lanka
303
25
Ranking Based On Selection: 4
Pradeep M Jayaweera
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,604
830
0.517
* Total Citation Counts Rankings
Rankings
518,320
Sri Lanka
314
27
Ranking Based On Selection: 5
Imalka Munaweera
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,573
1,224
0.778
Inorganic chemistry
Polymeric materials
Nanotechnology
Nanomedicine
* Total Citation Counts Rankings
Rankings
677,144
Sri Lanka
489
49
Ranking Based On Selection: 6
AM Abeysekera
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,002
337
0.336
* Total Citation Counts Rankings
Rankings
707,989
Sri Lanka
536
50
Ranking Based On Selection: 7
Laleen Karunanayake|Laleen Karunanayake, Karunanayake L., L.Karunanayake
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
919
718
0.781
* Total Citation Counts Rankings
Rankings
943,274
Sri Lanka
896
78
Ranking Based On Selection: 8
Gayan A. Appuhamillage
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
467
413
0.884
3D Printing
Polymer Chemistry
Synthetic Organic Chemistry
Materials Chemistry
* Total Citation Counts Rankings
Rankings
1,203,797
Sri Lanka
1,416
150
Ranking Based On Selection: 9
Sdm Chinthaka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
245
203
0.829
* Total Citation Counts Rankings
Rankings
1,299,683
Sri Lanka
1,689
189
Ranking Based On Selection: 10
Champa D Jayaweera
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
195
132
0.677
* Total Citation Counts Rankings
Rankings
1,312,261
Sri Lanka
1,721
194
Ranking Based On Selection: 11
Chayanika Padumadasa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
189
159
0.841
Chemistry and biological studies of medicinal plants
* Total Citation Counts Rankings
Rankings
1,312,508
Sri Lanka
1,723
195
Ranking Based On Selection: 12
Mab Prashantha
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
189
143
0.757
* Total Citation Counts Rankings
Rankings
1,323,867
Sri Lanka
1,767
200
Ranking Based On Selection: 13
Asangi Gannoruwa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
184
141
0.766
Chemistry
Polymer
Natural Rubber
Rubber Chemistry
Nanomaterials
* Total Citation Counts Rankings
Rankings
1,429,098
Sri Lanka
2,120
242
Ranking Based On Selection: 14
Sudantha S Liyanage
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
144
12
0.083
Inorganic Chemistry
Inorganic Synthesis
Rubber Chemistry
Water Quality
* Total Citation Counts Rankings
Rankings
1,493,374
Sri Lanka
2,342
272
Ranking Based On Selection: 15
Kg Upul Kumarasinghe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
123
106
0.862
Organic Synthesis
Physical Organic Chemistry
* Total Citation Counts Rankings
Rankings
1,504,640
Sri Lanka
2,381
275
Ranking Based On Selection: 16
Suneth Rajapaksha
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
120
59
0.492
* Total Citation Counts Rankings
Rankings
1,767,925
Sri Lanka
3,336
377
Ranking Based On Selection: 17
Chamika Siriwardhana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59
58
0.983
* Total Citation Counts Rankings
Rankings
1,826,017
Sri Lanka
3,595
401
Ranking Based On Selection: 18
Kumudu Rajapaksha|G.K.M.Rajapaksha, K. Rajapaksha, G. Kumudu M. Rajapaksha
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49
49
1.000
Nanotechnology
Materials Science
Analytical Chemistry
* Total Citation Counts Rankings
Rankings
2,073,667
Sri Lanka
4,426
482
Ranking Based On Selection: 19
Chamikara Herath
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19
19
1.000
Computational Chemistry
Drug Discovery and Development
Clinical Pharmacy
Medication Management
Medication Safety
* Total Citation Counts Rankings
Rankings
2,294,470
Sri Lanka
4,833
511
Ranking Based On Selection: 20
Pahan Godakumbura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000