Universität zu Köln

Zhang, Jingru, Zhao, Wangen ORCID: 0000-0002-0131-3979, Olthof, Selina ORCID: 0000-0002-8871-1549 and Liu, Shengzhong (Frank) (2021). Defects in CsPbX3 Perovskite: From Understanding to Effective Manipulation for High-Performance Solar Cells. Small Methods, 5 (11). WEINHEIM: WILEY-V C H VERLAG GMBH. ISSN 2366-9608

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Abstract

The rapid development of all inorganic metal perovskite (CsPbX3, X represents halogen) materials holds great promise for top-cells in tandem junctions due to their glorious thermal stability and continuous adjustable band gap in a wide range. Due to the presence of defects, the power conversion efficiency (PCE) of CsPbX3 perovskite solar cells (PSCs) is still substantially below the Shockley-Queisser (SQ) limit. Therefore, it is imperative to have an in-depth understanding of the defects in PSCs, thus to evaluate their impact on device performances and to develop corresponding strategies to manipulate defects in PSCs for further promoting their photoelectric properties. In this review, the latest progress in defect passivation in the CsPbX3 PSCs field is summarized. Starting from the effect of non-radiative recombination on open circuit voltage (V-oc) losses, the defect physics, tolerance, self-healing, and the effect of defects on the photovoltaic properties are discussed. Some techniques to identify defects are compared based on quantitative and qualitative analysis. Then, passivation manipulation is discussed in detail, the defect passivation mechanisms are proposed, and the passivation agents in CsPbX3 thin films are classified. Finally, directions for future research about defect manipulation that will push the field to progress forward are outlined.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Zhang, Jingru UNSPECIFIED UNSPECIFIED UNSPECIFIED Zhao, Wangen UNSPECIFIED orcid.org/0000-0002-0131-3979 UNSPECIFIED Olthof, Selina UNSPECIFIED orcid.org/0000-0002-8871-1549 UNSPECIFIED Liu, Shengzhong (Frank) UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-588198
DOI:	10.1002/smtd.202100725
Journal or Publication Title:	Small Methods
Volume:	5
Number:	11
Date:	2021
Publisher:	WILEY-V C H VERLAG GMBH
Place of Publication:	WEINHEIM
ISSN:	2366-9608
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language INORGANIC PEROVSKITE; HALIDE PEROVSKITES; GRAIN-BOUNDARIES; PHASE-STABILITY; HIGH-EFFICIENCY; TRAP STATES; ENERGY-LOSS; ALPHA-CSPBI3 PEROVSKITE; CRYSTAL-GROWTH; POINT-DEFECTS Multiple languages Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/58819