1. Department of Chemical Engineering and Applied Chemistry; Chungnam National University; 99 Daehak-ro Yuseong-Gu Daejeon 305-764 Republic of Korea
2. Theoretical Physics Research Group Advanced Institute of Materials Science; Ton Duc Thang University; Ho Chi Minh City Vietnam
3. Faculty of Applied Sciences; Ton Duc Thang University; Ho Chi Minh City Vietnam