• Department of Physics and Institute of Nanoscience, National Chung Hsing University, Taiwan

  • Centre for Solar Energy Materials & Centre for Engineered Coatings, International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), Hyderabad.

  • UGC-DAE-Consortium of Scientific Research, Kalpakkam Node, Tamilnadu.

  • Department of Sciences, Amrita Vishwa Vidyapeetham, Coimbatore.

  • Department of Physics, Sri Ramakrishna Mission Vidyalaya College of Arts & Science, Coimbatore, Tamilnadu.

  • Quantum Materials & Energy Devices (QM-ED) Laboratory, Department of Physics, Bharathiar University, Coimbatore.