1 School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China
2 Department of Physics, National University of Singapore, Singapore 117542, Singapore
3 SZU-NUS Collaborative Innovation Center for Optoelectronic Science and Technology, Shenzhen University, Shenzhen 518060, China
4 Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
5 School of Physics and Electronics, Central South University, Changsha 410083, China
6 National University of Singapore (Suzhou) Research Institute, Suzhou 215123, China
§ Yue Zheng and Zehua Hu contributed equally to this work.