1. Functional Materials and Microsystems Research Group and the Micro Nano Research Facility, RMIT University, Melbourne, Victoria 3000, Australia
2. Sensor Devices & Metrology Group, CSIR—National Physical Laboratory (CSIR-NPL), Dr K. S. Krishnan Road, New Delhi 110012, India
3. Academy of Scientific & Innovative Research, (AcSIR), CSIR-HRDC Campus, Ghaziabad, Uttar Pradesh 201002, India
4. School of Science, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia
5. ARC Centre of Excellence in Future Low-Energy Electronics Technologies (FLEET), School of Science, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia
6. Micro Nano Research Facility, RMIT University, Melbourne, Victoria 3001, Australia
7. School of Engineering, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia