Eur. Phys. J. Plus (2021) 136: 915
https://doi.org/10.1140/epjp/s13360-021-01794-1

Regular Article

A novel design of high efficiency perovskite solar cell using electron reflector strategy and transport layers optimization

Department of Electrical Engineering, Imam Reza International University, Mashhad, Iran

^b Khosroabadi@imamreza.ac.ir

Received: 2 March 2021
Accepted: 23 July 2021
Published online: 6 September 2021

Abstract

Electron reflectors are a proposed method to improve the V_OC of solar cells by forming a barrier in the conduction band to decline the electron's contact with the back surface. The electron reflector can be created by a back layer with an extended bandgap, a reversed back-barrier, or a high doping back surface. In this paper, we investigated the performance of a perovskite solar cell to achieve an optimized structure using the electron reflection strategy, variety of thickness, doping, and material of the electron transport layer, the hole transport layer, and the absorber layer. Three types of architectures are examined. Under global AM 1.5G conditions, the final proposed cell structure had an V_OC of 1.03 V, a short-circuit current density of 25.99 mA/cm², and a fill factor 84.1%, corresponding to a total area conversion efficiency of 22.62%.