Affiliation: | 1. Department of Chemistry, Faculty of Engineering, Rajamangala University of Technology Isan, Khonkaen Campus, Khonkaen, 40000, Thailand 2. Solar and Wind Energy Research Laboratory (SWERL), Department of Physics, Faculty of Science, Thaksin University, Songkla, 90000, Thailand 3. Integrated Nanotechnology Research Center, Department of Physics, Faculty of Science, Khonkaen University, Khonkaen, 40002, Thailand
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