Benchmarking Chemical Stability of Arbitrarily Mixed 3D Hybrid Halide Perovskites for Solar Cell Applications

• DOI: 10.1002/smtd.201800242
• Publication Date: 2018-08-14T14:51:46Z
• Authors: Alberto García‐Fe...; Emilio J. Juarez‐...; Socorro Castro‐Ga...; Manuel Sánchez‐An...; Luis K. Ono; Yan Jiang; Yabing Qi
• Keywords: Degradation; Benchmarking; Thermal Stability; Perovskite solar cell

Abstract Accurate and fast assessment of the intrinsic instability mixed composition hybrid halide perovskite material is vital importance for development solar cells. A longer lifetime close to current silicon‐based technology a mandatory property cells reach commercial applications. The conventional method evaluate operational stability performance relies on tracking maximum power efficiency devices. However, this testing procedure requires long measurement time, which an inefficient screen huge compositional space perovskites. Here, thermal degradation protocol shown preliminary screening evaluation any 3D material. This determines two independent parameters quantification; 1) temperature 2) heat absorbed during degradation. Experimental entropic‐like parameter can be derived addressing relative each composition. In addition, first‐principle theoretical approach described in silico search optimal experimental benchmarking able signify several general rules thumb find enhanced trends perovskites prior device assembly tests.