1. School of Chemistry Institute of Science Suranaree University of Technology 111 University Avenue, Suranaree, Muang Nakhon Ratchasima 30000 Thailand
2. Synchrotron Light Research Institute 111 University Avenue, Suranaree, Muang Nakhon Ratchasima 30000 Thailand
3. School of Physics Institute of Science Suranaree University of Technology 111 University Avenue, Suranaree, Muang Nakhon Ratchasima 30000 Thailand