Limitations of a polymer-based hole transporting layer for application in planar inverted perovskite solar cells.

ABSTRACT: Planar inverted lead halide photovoltaics demonstrate remarkable photoconversion properties when employing poly(triarylamine) (PTAA) as a hole transporting layer. Herein, we elucidate the effect of ambient ultraviolet (UV) degradation on the structural and operational stability of the PTAA hole transporter through a series of rigorous optoelectrical characterization protocols. Due attention was given to the interplay between the polymer and perovskite absorber, both within the framework of a bilayer structure and fully assembled solar cells. The obtained results imply that UV degradation exerts a major influence on the structural integrity of PTAA, rather than on the interface with the perovskite light harvester. Moreover, UV exposure induced more adverse effects on tested samples than env

SUBMITTER: Petrovic M 

PROVIDER: S-EPMC9417823 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature