Metal Halide Perovskite Nanosheet for X-ray High-Resolution Scintillation Imaging Screens

Authors: Yuhai Zhang, Ruijia Sun, Xiangyu Ou, Kaifang Fu, Qiushui Chen, Yuchong Ding, Liang‐Jin Xu, Lingmei Liu, Yu Han, Anton V. Malko, Xiaogang Liu, Huanghao Yang, Osman M. Bakr, Hong Liu, Omar F. Mohammed - ACS Nano 2019 cited by 491

in area) with the requisite thickness for high-resolution X-ray imaging applications. We showcase prototype applications of these high-quality scintillating films as X-ray imaging screens for a cellphone panel and a standard central processing unit chip. Our radiography prototype combines large-area processability with high resolution and a strong penetration ability to sheath materials, such as resin and silicon. We reveal an energy transfer process inside those stacked nanosheet solids that is responsible for their superb scintillation performance. Our findings demonstrate a large-area solution-processed scintillator of stable and efficient RL as a promising approach for low-cost radiography and X-ray imaging applications.