[1] Prince Songkla Univ, Fac Sci, Dept Mat Sci & Technol, Hat Yai 90112, Songkhla, Thailand
[2] Walailak Univ, Sch Sci, Nakhon Si Thammarat 80161, Thailand
[3] Chiang Mai Univ, Fac Sci, Dept Phys & Mat Sci, Chiang Mai 50200, Thailand
[4] Chiang Mai Univ, Fac Sci, Mat Sci Res Ctr, Chiang Mai 50200, Thailand
[5] Chiang Mai Univ, Fac Sci, Dept Chem, Chiang Mai 50200, Thailand