1. Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
2. Department of Physics, S.B. College, Mahatma Gandhi University, Kerala 686101, India
3. Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583, Singapore
4. Applied Materials − NUS Advanced Materials Corporate Lab, 5A Engineering Drive 1, Singapore 117411, Singapore
5. Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02141, United States
6. Research Center for Electronic and Optical Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
7. Research Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
8. Center for Quantum Research and Technology (CQRT), and Center of Optimal Materials for Emerging Technologies (COMET), University of Oklahoma, Norman, Oklahoma 73019, United States