Recent Progress in Polarization-Enhanced PVDF-Based Perovskite Solar Cells

Abstract

Polyvinylidene difluoride (PVDF)-based perovskite solar cells (PSCs) have led to continuous improvements in efficiency of up to 24.23%. These types of polarization-enhanced solar cells offer a simpler strategy to achieve stable polarization to increase efficiency. The fundamental research progress in polarization-enhanced built-in fields in PVDF-based PSCs is reviewed. Herein, it is discussed how polarization can be induced by piezo-phototronic effect and spontaneous and external electric field poling. Finally, the directions for high-efficiency PSCs based on PVDF are outlined.