Bilayered graded phase homojunction FA0.15MA0.85PbI3-based organic-inorganic hybrid perovskite solar cells crossing 22 efficiency

Patil, JV and Mali, SS and Rondiya, SR and Dzade, NY and Hong, CK (2024) Bilayered graded phase homojunction FA0.15MA0.85PbI3-based organic-inorganic hybrid perovskite solar cells crossing 22 efficiency. In: Progress in Solid State Chemistry .

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Abstract

Making highly efficient and stable perovskite solar cells (PSCs) are often based on the processing techniques, band gap of the material and effective interface charge separation. The efficiency of PSCs can be enhanced through several methods including the utilization of a solar-friendly absorber, interface passivation and the implementation of multi-junction spectrally matched absorbers or bilayered phase homojunction (BPHJ) consisting of identical absorbers. Here, we demonstrated BPHJ concept by stacking identical compositions of highly efficient and stable FA0.15MA0.85PbI3 perovskite absorbers adopting solution process (SP) and thermal evaporation (TEV) techniques. We successfully achieved FA0.15MA0.85PbI3 (SP)/FA0.15MA0.85PbI3-(TEV) based BPHJ normal n-i-p devices, which significantly crossing 22. PCE. These improvement stems from effective deposition method for achieving high-quality FA0.15MA0.85PbI3-based BPHJ enabling smooth charge transfer at the interfaces. The resulting BPHJ-based champion device achieve a 22.13 PCE and retain >95 its original efficiency over 1000 hours. © 2023 Elsevier Ltd

Item Type:	Journal Article
Publication:	Progress in Solid State Chemistry
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to Elsevier Ltd.
Keywords:	Charge transfer; Efficiency; Energy gap; Lead compounds; organic-inorganic materials; Perovskite solar cells; Solar absorbers; Thermal evaporation, Bilayered; Cell-be; Cell/B.E; Efficiency and stability; FA0.15MA0.85PbI3 perovskite; Homo-junctions; Organic/Inorganic hybrids; Solution process; Triple source thermal evaporation; Triple-sources, Perovskite
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	01 Mar 2024 09:48
Last Modified:	01 Mar 2024 09:48
URI:	https://eprints.iisc.ac.in/id/eprint/84004

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