Dongni Li, Xiangyu Sun, Yao Zhang, Zhen Guan, Yansong Yue, Qingya Wang, Lu Zhao, Fangze Liu, Jing Wei, Hongbo Li
Perovskite films with large crystal size, preferred orientation, and facile fabrication process, combining advantages of single-crystal and polycrystalline films, have gained considerable attention recently. However, there is little research on the facet properties of perovskite films. Here, (111)- and (001)-oriented perovskite films with bandgaps ranging from 1.53 to 1.77 eV, and systematically investigated their orientation-dependent properties are achieved. The (111)-oriented films show electron-dominated traps and the (001)-oriented films show hole-dominated traps, which are related to their atomic arrangement at the surface...
March 11, 2024: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)