Extrinsic Self-Trapped-Exciton Emission in Cs₅Cu₃Cl₆I₂ for Efficient X-Ray Scintillation

Yang Nan, Chengcheng Wang, Guangbin Zhang, Zhiyuan Kuang, Wenbo Liu, Mingmin Zhou, Xiuying Zhang, Shuheng Dai, Peng Ran, Xinqi Xu, Qiushui Chen, Yang Yang, Lin Zhu, Qiming Peng, Nana Wang, Jianpu Wang