1. Department of Chemistry; National Central University; Jhong-Li 32001 Taiwan
2. Department of Chemistry; PSG college of Arts and Science; Coimbatore- 641014 India
3. Photonic Materials Research Laboratory; Department of Chemistry; National Central University; Jhong-Li 32001 Taiwan
4. Electrochemical Laboratory; Department of Chemistry; National Central University; Jhong-Li 32001 Taiwan