Alternative electrodes for HTMs and noble-metal-free perovskite solar cells: 2D MXenes electrodes.

ABSTRACT: The high cost of hole transporting materials (HTMs) and noble metal electrodes limits the application of perovskite solar cells (PSCs). Carbon materials have been commonly utilized for HTMs and noble-metal-free PSCs. In this paper, a more conductive 2D MXene material (Ti₃C₂), showing a similar energy level to carbon materials, has been used as a back electrode in HTMs and noble-metal-free PSCs for the first time. Seamless interfacial contact between the perovskite layer and Ti₃C₂ material was obtained using a simple hot-pressing method. After the adjustment of key parameters, the PSCs based on the Ti₃C₂ electrode show more stability and higher power conversion efficiencies (PCE) (13.83%, 27% higher than that (10.87%) of the

SUBMITTER: Cao J 

PROVIDER: S-EPMC9073695 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature