1. Academy of Sri Lanka Institute of Nanotechnology (SLINTEC Academy), Mahenwatte, Pitipana, Homagama 10206, Sri Lanka
2. Sri Lanka Institute of Nanotechnology (SLINTEC), Nanotechnology and Science Park, Mahenwatte, Pitipana, Homagama 10206, Sri Lanka
3. Postgraduate Institute of Science (PGIS), University of Peradeniya, Peradeniya 20400, Sri Lanka
4. Department of Science and Technology, Uva Wellassa University, Passara Road, Badulla 90000, Sri Lanka
5. Department of Chemistry, Faculty of Science, University of Peradeniya, Peradeniya 20400, Sri Lanka
6. Department of Geology, Faculty of Science, University of Peradeniya, Peradeniya 20400, Sri Lanka
7. Department of Chemistry, Faculty of Science, University of Colombo, Colombo 00300, Sri Lanka