1. Center for Functional Materials, Department of Physics, Christian College Chengannur, University of Kerala, Alappuzha, India
2. Department of Physics, St. Joseph’s College for Women, University of Kerala, Alappuzha, India
3. St.Mary’s H.S.S Niranam, Pathanamthitta, India
4. School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam, India
5. Department of Chemistry, Thiagarajar College, Madurai, India