1. School of Materials Sciences and EngineeringUniversity of Science and Technology Beijing Beijing 100083 China
2. Laboratory of Crystal PhysicsKirensky Institute of PhysicsFederal Research Center KSC SB RAS Krasnoyarsk 660036 Russia
3. Siberian Federal University Krasnoyarsk 660041 Russia
4. Department of PhysicsFar Eastern State Transport University Khabarovsk 680021 Russia
5. Laboratory of Inorganic ChemistryDepartment of Chemistry and Applied BioscienceETH Zürich Vladimir Prelog Weg 1 8093 Zürich Switzerland
6. Laboratory for Thin Films and PhotovoltaicsEmpa-Swiss Federal Laboratories for Materials Science and Technology Überlandstrasse 129 8600 Dübendorf Switzerland
7. State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication MaterialsSouth China University of Technology Guangzhou 510641 China