Issue 13, 2022

Review of defect engineering in perovskites for photovoltaic application

Abstract

Perovskite-based devices have achieved high efficiencies in the fields of photovoltaics and energy storage. However, intrinsic defects in the deep levels of the perovskite structure are both morphological and structural. Perovskites mainly suffer from extrinsic defects at their interfaces and grain boundaries, ultimately affecting the perovskite film crystallinity. Moreover, they additionally depreciate the band alignment and charge transport. Defect engineering is therefore the ideal option to enhance device performance and stability. The initial substrate formation plays a consequential role in determining the morphology of the structure and different materials can thus be tested as precursors through different initial fabrication strategies to develop quality perovskite films. Composition engineering is also practiced, with dopants added at various levels of fabrication. In some cases, synthesizing defects also improves the device performance with reasonable stability. Herein, categorizing the defects, should be of primary importance given that defect structuring is very important to upgrade the perovskite performance for commercial applications.

Graphical abstract: Review of defect engineering in perovskites for photovoltaic application

Article information

Article type
Review Article
Submitted
19 Feb 2022
Accepted
22 Mai 2022
First published
01 Jun 2022
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2022,3, 5234-5247

Review of defect engineering in perovskites for photovoltaic application

S. Bera, A. Saha, S. Mondal, A. Biswas, S. Mallick, R. Chatterjee and S. Roy, Mater. Adv., 2022, 3, 5234 DOI: 10.1039/D2MA00194B

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