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Passivation and process engineering approaches of halide perovskite films for high efficiency and stability perovskite solar cells

Passivation and process engineering approaches of halide perovskite films for high efficiency and stability perovskite solar cells
Passivation and process engineering approaches of halide perovskite films for high efficiency and stability perovskite solar cells
The surface, interfaces and grain boundaries of a halide perovskite film carry critical tasks in achieving as well as maintaining high solar cell performance due to the inherently defective nature across their regime. Passivating materials and felicitous process engineering approaches have significant ramifications in the resultant perovskite film, and the solar cell's overall macroscale properties as they dictate structural and optoelectronic properties. Herein, we exploit a vast number of defect engineering approaches aiming to increase the performance and the stability of perovskite solar cells, especially against humidity, continuous illumination, and heat. This review begins with the perovskite materials' fundamental structural properties followed by the advances made to induce higher stabilization in perovskite solar cells by fine-tuning materials chemistry design parameters. We continue by summarizing defect passivation strategies based on molecular entities' application, including suitable functional groups that enable sufficient surface, bulk and grain boundary passivation, morphology, and crystallinity control. We also present methods to control the density of defects through the variation of processing conditions, solvent annealing and solvent engineering approaches, gas-assisted deposition methods, and use of self-assembled monolayers, as well as colloidal engineering and coordination surface chemistry. Finally, we give our perspective on how a combined understanding of materials chemistry aspects and passivation mechanisms will further develop high-efficiency and stability perovskite solar cells.

1754-5692
2906-2953
Georgiadou, Dimitra
84977176-3678-4fb3-a3dd-2044a49c853b
Georgiadou, Dimitra
84977176-3678-4fb3-a3dd-2044a49c853b

Georgiadou, Dimitra (2021) Passivation and process engineering approaches of halide perovskite films for high efficiency and stability perovskite solar cells. Energy & Environmental Science, 14 (5), 2906-2953. (doi:10.1039/D1EE00062D).

Record type: Article

Abstract

The surface, interfaces and grain boundaries of a halide perovskite film carry critical tasks in achieving as well as maintaining high solar cell performance due to the inherently defective nature across their regime. Passivating materials and felicitous process engineering approaches have significant ramifications in the resultant perovskite film, and the solar cell's overall macroscale properties as they dictate structural and optoelectronic properties. Herein, we exploit a vast number of defect engineering approaches aiming to increase the performance and the stability of perovskite solar cells, especially against humidity, continuous illumination, and heat. This review begins with the perovskite materials' fundamental structural properties followed by the advances made to induce higher stabilization in perovskite solar cells by fine-tuning materials chemistry design parameters. We continue by summarizing defect passivation strategies based on molecular entities' application, including suitable functional groups that enable sufficient surface, bulk and grain boundary passivation, morphology, and crystallinity control. We also present methods to control the density of defects through the variation of processing conditions, solvent annealing and solvent engineering approaches, gas-assisted deposition methods, and use of self-assembled monolayers, as well as colloidal engineering and coordination surface chemistry. Finally, we give our perspective on how a combined understanding of materials chemistry aspects and passivation mechanisms will further develop high-efficiency and stability perovskite solar cells.

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Passivation and process engineering approaches of halide perovskite films for high efficiency and stability perovskite solar cells - Accepted Manuscript
Restricted to Repository staff only until 9 April 2022.
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Accepted/In Press date: 9 April 2021
e-pub ahead of print date: 9 April 2021

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Local EPrints ID: 449724
URI: http://eprints.soton.ac.uk/id/eprint/449724
ISSN: 1754-5692
PURE UUID: a0038ef2-8283-4754-92c0-2422fad8dc61
ORCID for Dimitra Georgiadou: ORCID iD orcid.org/0000-0002-2620-3346

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Date deposited: 14 Jun 2021 16:31
Last modified: 17 Jun 2021 01:59

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