State Key Laboratory of Superlattices and Microstructures;
Institute of Semiconductors;
Chinese Academy of Sciences;
Beijing 100083;
China;
College of Materials Science and Opto-Electronic Technology;
University of Chinese Academy of Sciences;
Beijing 100049;
China;
Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education;
Synergetic Innovation Center for Quantum Effects and Applications;
Department of Physics;
Hunan Normal University;
Changsha 410081;
China;
Si-based luminescence; band offset; lattice mismatch; heterovalent semiconductors;