Optimization of Transport Layer Thickness for Perovskite Solar Cells: An Optical Analysis

Abstract

Perovskite-based solar cells are one of the most rapidly emerging photovoltaic devices in terms of their ability to convert sunlight into electrical energy. Although extensively researched upon, their efficiency is still less than the thermo-dynamic limit due to various electrical losses in the device and optical losses in the stack layers that make a perovskite solar cell (PSC). This work focuses on optimizing the thickness of the transport layers (electron and hole transport layers) in the stack for planar PSCs, by accounting for different optical losses in each layer analytically.