Nanoarchitectonics in fully printed perovskite solar cells with carbon-based electrodes

TL;DR

This paper demonstrates a nanoarchitectonic approach using sacrificial polystyrene nanoparticles to improve perovskite crystal growth and device performance in fully printed solar cells with carbon electrodes.

Contribution

It introduces a novel nanoarchitectonic method with sacrificial films to enhance perovskite solar cell efficiency and scalability.

Findings

Larger perovskite crystals achieved within oxide scaffold

Significant suppression of non-radiative recombination

Improved device performance in printed solar cells

Abstract

A sacrificial film of polystyrene nanoparticles was utilized to introduce nano-cavities in mesoporous metal oxide layers. This enabled the growth of larger perovskite crystals inside the oxide scaffold with significantly suppressed non-radiative recombination and improving device performance. This work exemplifies potential applications of such nanoarchitectonic approaches in perovskite opto-electronic devices.