1. Nanotech Research Lab, Department of ChemistryUniversity College of Engineering Villupuram (A Constituent College of Anna University, Chennai) Kakuppam, Villupuram 605 103 Tamilnadu India
2. Department of ChemistryD.M.I College of Engineering Palanchur‐Nazarethpet, Chennai 600123 Tamilnadu India
3. Centre of excellence for advanced Materials Manufacturing, Processing and CharacterizationVignan University Vadlamudi, Guntur Andhra Pradesh 522213 India