1. Department of Materials Science and EngineeringCollaborative Innovation Center of Chemistry for Energy MaterialsCollege of MaterialsXiamen University Xiamen 361005 China
2. Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient DevicesDepartment of PhysicsXiamen University Xiamen 361005 China
3. State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingInternational School of Materials Science and EngineeringWuhan University of Technology Wuhan 430070 China