1. Division of Chemistry, School of Science, University of Phayao, Phayao 56000, Thailand
2. Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
3. Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
4. Materials Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand