1. Faculty of Humanities and Sciences, Sri Lanka Institute of Information Technology, Malabe 10115, Sri Lanka
2. Department of Materials Engineering, Faculty of Engineering, Sri Lanka Institute of Information Technology, Malabe 10115, Sri Lanka
3. Department of Nano Science Technology, Wayamba University of Sri Lanka, Kuliyapitiya 60200, Sri Lanka
4. Faculty of Engineering, University of Technology Sydney (UTS), P.O. Box 123, Broadway, NSW 2127, Australia
5. Faculty of Sciences & Technology (RealTek), Norwegian University of Life Sciences, P.O. Box N-1432, Ås 1430, Norway