1. School of Environment and Energy South China University of Technology Guangzhou 510006 China
2. State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou China
3. Guangzhou International Economics College No. 28 Dayuanbei Baiyun District Guangzhou Guangdong 510540 China
4. Ltd Guangdong Energy Group Science and Technology Research Institute Co. Guangzhou China
5. Ltd Beyonder AS Co. Stokkamyrveien 30 Sandnes N‐4313 Norway
6. Harvard John. A. Paulson School of Engineering and Applied Sciences Harvard University 29 Oxford St Cambridge Massachusetts 02138 USA