1. Photosciences and Photonics Section Chemical Sciences and Technology Division and Academy of Scientific and Innovative Research (AcSIR) CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) Thiruvananthapuram 695019 India
2. Physical/Materials Chemistry Division and Academy of Scientific and Innovative Research (AcSIR) CSIR-National Chemical Laboratory (CSIR-NCL) Pune 411008 India