1. Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics; Collaborative Innovation Center for Optoelectronic Science and Technology and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province; College of Optoelectronic Engineering; Shenzhen University; Shenzhen 518060 China
2. College of Materials Science and Engineering; Shenzhen University; Shenzhen 518060 China
3. Institute for Advanced Study; Shenzhen University; Shenzhen 518060 China