1. School of Chemical Sciences, Mahatma Gandhi University; Priyadarshini Hills Kottayam 686560 Kerala India
2. Center for Advanced Materials; Qatar University; P.O. Box 2713 Doha Qatar
3. Department of Science; Holy Kings' College of Engineering Science & Technology; Pampakuda Ernakulam Kerala India
4. Advanced Molecular Materials Research Centre, Mahatma Gandhi University; Priyadarshini Hills Kottayam 686560 Kerala India
5. Department of Materials and Process Engineering; The University of Waikato; Hamilton New Zealand
6. Faculty of Applied Sciences; International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University; Priyadarshini Hills Kottayam 686560 Kerala India
7. Universiti Teknologi MARA, Faculty of Applied Sciences; 40450 Shah Alam Selongor Malaysia