Nonhazardous Solvent Systems for Processing Perovskite Photovoltaics

By Kira Gardner, J. Tait, T. Merckx, W. Qiu, Ulrich W. Paetzold, L. Kootstra, M. Jaysankar, R. Gehlhaar, D. Cheyns, Paul Heremans and 1 more. 2016

191 citations recorded by the source corpus.

Replacing toxic solvents with nonhazardous solvents is one of the key challenges for industrial scale commercialization of thin film perovskite photovoltaics. Here, nonhazardous solvent/alcohol/acid systems are presented for the single‐step deposition of pinhole‐free perovskite layers with combined lead halide precursors of Pb(CH3CO2)2·3H2O, PbCl2, and CH3NH3I. Comparable performance to standard hazardous inks is achieved: devices with 15.1% power conversion efficiency are demonstrated and maintain 13.5% tracked for 5 min at maximum power point. Blade coated 4 cm2 solar modules fabricated with highest performing device ink attain 11.9% in power conversion efficiency.

Subfields: Electrical and Electronic Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/7fdd363cd7dc3d70128909eac6976d161e1087b3