1. Hunan Key Laboratory of Micro-Nano Energy Materials and Devices, Laboratory for Quantum Engineering and Micro-Nano Energy Technology; School of Physics and Optoelectronic; Xiangtan University; Xiangtan 411105 P. R. China
2. Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics; SZU-NUS Collaborative Innovation Center for Optoelectronic Science and Technology; and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province; Shenzhen University; Shenzhen 518060 P. R. China
3. Department of Nanoscience and Technology; Bharathiar University; Coimbatore 641046 India
4. State Key Laboratory of Chem/Bio-Sensing and Chemometrics; College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 P. R. China