1. Key Laboratory of Low-grade Energy Utilization Technologies and Systems
2. Ministry of Education
3. School of Power Engineering
4. Chongqing University
5. Chongqing 400044
6. Key Laboratory of Optoelectronic Technology & Systems
7. China
8. Department of Materials Science & Engineering
9. National University of Singapore
10. Singapore 117574
11. Singapore
12. Chongqing Institute of Green and Intelligent Technology
13. CAS
14. Chongqing 400714