1. Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
2. Singapore Institute of Manufacturing Technology and National University of Singapore (SIMTech-NUS) Joint Lab on Large-area Flexible Hybrid Electronics, National University of Singapore, Singapore 117583, Singapore
3. Center for Intelligent Sensors and MEMS (CISM), National University of Singapore, Singapore 117608, Singapore
4. National University of Singapore Suzhou Research Institute (NUSRI), Suzhou Industrial Park, Suzhou 215123, China
5. Printed Intelligent Device Group, Singapore Institute of Manufacturing Technology, Agency for Science, Technology and Research (A*STAR), Singapore 637662, Singapore
6. NUS Graduate School - Integrative Sciences and Engineering Programme (ISEP), National University of Singapore, Singapore 119077, Singapore