1. Department of Materials Science, Faculty of Science, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
2. Laboratory of Organic Synthesis, Chulabhorn Research Institute, Bangkok 10210, Thailand
3. Graphene and Printed Electronics for Dual-Use Applications Research Division (GPERD), National Science and Technology Development Agency, 111 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand
4. Department of Physics, Faculty of Science, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
5. Department of Chemistry, Faculty of Science, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand