1. Multifunctional Nano Bio Electronics Lab, Department of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, South Korea
2. Department of Electrical and Computer Engineering, Sungkyunkwan University College of Information and Communication Engineering, Suwon 16419, South Korea
3. Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, Squires Way, North Wollongong 2500, New South Wales, Australia