Investigation of Well-Defined Pinholes in TiO₂ Electron Selective Layers Used in Planar Heterojunction Perovskite Solar Cells.

ABSTRACT: The recently introduced perovskite solar cell (PSC) technology is a promising candidate for providing low-cost energy for future demands. However, one major concern with the technology can be traced back to morphological defects in the electron selective layer (ESL), which deteriorates the solar cell performance. Pinholes in the ESL may lead to an increased surface recombination rate for holes, if the perovskite absorber layer is in contact with the fluorine-doped tin oxide (FTO) substrate via the pinholes. In this work, we used sol-gel-derived mesoporous TiO₂ thin films prepared by block co-polymer templating in combination with dip coating as a model system for investigating the effect of ESL pinholes on the photovoltaic performance of planar heterojunction PSCs. We studied Ti

SUBMITTER: Masood MT 

PROVIDER: S-EPMC7022807 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature