Department of Chemistry;
Faculty of Science;
Chiang Mai University;
Chiang Mai 50200;
Thailand;
Department of Materials Science and Technology;
Faculty of Science;
Prince of Songkla University;
Song khla 90112;
Thailand;
Materials Science Research Center;
Faculty of Science;
Chiang Mai University;
Chiang Mai 50200;
Thailand;
Department of Physics and Materials Science;
Faculty of Science;
Chiang Mai University;
Chiang Mai 50200;
Thailand;