Kinetic-Controlled Crystallization of α-FAPbI₃ Inducing Preferred Crystallographic Orientation Enhances Photovoltaic Performance.

ABSTRACT: Crystallization kinetic controls the crystallographic orientation, inducing anisotropic properties of the materials. As a result, preferential orientation with advanced optoelectronic properties can enhance the photovoltaic devices' performance. Although incorporation of additives is one of the most studied methods to stabilize the photoactive α-phase of formamidinium lead tri-iodide (α-FAPbI₃ ), no studies focus on how the additives affect the crystallization kinetics. Along with the role of methylammonium chloride (MACl) as a "stabilizer" in the formation of α-FAPbI₃ , herein, the additional role as a "controller" in the crystallization kinetics is pointed out. With microscopic observations, for example, electron backscatter diffraction and selected area electron di

SUBMITTER: Shin S 

PROVIDER: S-EPMC10190499 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature