[1]Wuhan National Laboratory for Optoelectronics (WNLO) Huazhong University of Science and Technology (HUST) Wuhan 430074 China;
[2]School of Information Engineering Nanchang University Nanchang 330031 China;
[3]School of Optical and Electronic Information Huazhong University of Science and Technology (HUST) Wuhan 430074 China;
[4]College of Life Science and Technology Huazhong University of Science and Technology (HUST) Wuhan 430074 China;
[5]College of Physics Huazhong University of Science and Technology (HUST) Wuhan 430074 China;
low toxic; scintillation; light yield; lanthanide; double perovskites;