1. Department of Chemistry, Faculty of Science; Universiti Putra Malaysia; 43400 UPM Serdang Selangor Malaysia
2. Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology; Universiti Putra Malaysia; 43400 UPM Serdang Selangor Malaysia
3. Functional Devices Laboratory, Institute of Advanced Technology; Universiti Putra Malaysia; 43400 UPM Serdang Selangor Malaysia
4. Centre of Foundation Studies for Agricultural Science; Universiti Putra Malaysia; 43400 UPM Serdang Selangor Malaysia
5. School of Electronics Engineering; VIT University-Chennai Campus; Vandalur-Kelambakkan Road Chennai 600 127 India