The multifaceted role of polymers in the performance and stability improvement of perovskite solar cells
[Display omitted] •The multifaceted role of polymer in PSCs is reviewed.•It shows how polymers have been employed to improve chemical and mechanical stabilities.•Physical nature of the polymer, insulator or semiconductor, is identified as a crucial factor.•Polymer implementations are categorized as...
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Veröffentlicht in: | Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2024-11, Vol.500, p.156703, Article 156703 |
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Format: | Artikel |
Sprache: | eng |
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•The multifaceted role of polymer in PSCs is reviewed.•It shows how polymers have been employed to improve chemical and mechanical stabilities.•Physical nature of the polymer, insulator or semiconductor, is identified as a crucial factor.•Polymer implementations are categorized as capping layer, additive, scaffold, and bulky cation.•Theoretical insights provide a comprehensive understanding of polymer-perovskite interactions.
Organic-inorganic perovskite solar cells (PSCs) have garnered significant attention due to their impressive optoelectronic properties. They have reached an attractive power conversion efficiency (PCE) of 26.1 %. However, they suffer from issues, such as short lifetime and toxicity, which have limited their practical applications. Their shortcomings can be addressed by controlling grain size, grain boundary, defects, moisture and oxygen penetration, and mechanical strength. To obtain insight on a realistic path towards durable and commercially viable PSCs, this work discusses how polymers have been employed to improve their lifetime and PCE. First, it briefly classifies the various polymers used in PSCs according to their roles. Then, it mainly focuses on how polymers contribute to improve the optoelectronic properties, mechanical strength, and chemical stability of perovskite layer. The physical nature of the polymer, whether it is an insulator or semiconductor, is identified as a crucial factor in determining its applications. Common polymer implementations are categorized based on their role as capping or interfacial layers in the perovskite absorber layer, as additives within the perovskite layer, as scaffolds for the perovskite grains, and as bulky cations. The strategies utilized to benefit from the desired effects of the polymers while minimizing their unwanted effects are summarized. It also incorporates theoretical insights to provide a comprehensive understanding of polymer-perovskite interactions. By providing a comprehensive overview of these polymer-based strategies, this review proposes perspectives on the future directions of this burgeoning field. |
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ISSN: | 1385-8947 |
DOI: | 10.1016/j.cej.2024.156703 |