Yttrium Metal–Organic Framework Nanocrystals for Two‐Step Deposited Perovskite Photovoltaics with Enhanced UV‐light Durability

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(44)

Published: June 27, 2024

Abstract Metal–organic frameworks (MOFs), renowned for their porous and tunable functionalities, hold significant potential enhancing perovskite photovoltaic. However, the influence of MOF, particularly those with balanced cations in pores, on conversion bottom‐layer PbI 2 distribution MOFs within remains underexplored. Herein, a newly synthesized Yttrium (Y)‐MOF material is introduced, featuring dimethylamine (DMA) as its pores strong absorption UV regime, to modify films. Y‐MOF, rich oxygen nitrogen sites, DMA can passivate uncoordinated Pb 2+ perovskite. Scanning electron microscopy (SEM) grazing incidence wide‐angle X‐ray scattering (GIWAXS) analysis top bottom surfaces pristine Y‐MOF‐assisted samples reveal that presence films negligible. In situ UV–vis analyses demonstrate incorporation Y‐MOF decelerates crystallization kinetics perovskite, facilitating development larger grains. Moreover, GIWAXS experiments conducted at different angles predominant which effectively mitigates impact ultraviolet light Consequently, devices achieve an efficiency 24.05% improved stability especially UV‐light stability.

Language: Английский

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Nanoscale enhancements in perovskite-based photovoltaics

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 480, P. 148143 - 148143

Published: Dec. 17, 2023

Language: Английский

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Perovskite photovoltaics: exploring the role of 2D and 1D carbon-based interfacial layers for enhanced stability and efficiency

Materials Today Energy, Journal Year: 2024, Volume and Issue: 44, P. 101629 - 101629

Published: June 25, 2024

Language: Английский

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Correlation between defect properties and the performance of eco-friendly CsSnI₃-based perovskite solar cells

Semiconductor Science and Technology, Journal Year: 2024, Volume and Issue: 39(4), P. 045007 - 045007

Published: Jan. 19, 2024

Abstract This study investigates the potential use of eco-friendly, all-inorganic cesium tin iodide (CsSnI 3 ) perovskite (PVK) as an absorber layer. Despite having higher temperature stability CsSnI , challenge is to get a uniform and defect-free film that hinders performance. To accomplish this goal, we investigated several performance-related variables for solar cells (PSCs), including material defect density ( N t ), transport materials, layer thickness, impacts, back contact work functions. Negative valence band or conduction offset values indicate no barrier preventing photogenerated carriers from flowing into charge layers. The simulation result shows hole thickness impact than electron thickness. For PVK 500 nm carrier 10 18 cm −3 device offers optimum power conversion efficiency 20.1%. performance more significantly affected by defects in compared present at interface. Higher recombination (R e−h+ occurs TiO 2 –CsSnI Defects located within deep-level trap positioned mid-point gap energy E g have negative on coefficient C T approximately ‒0.367% K ‒1 indicating excellent thermal open environment. selection ‘A’ cation, addition additives, carefully controlled fabrication techniques can mitigate defect. research strategy creating defects-free PSC devices, ultimately enhancing stability.

Language: Английский

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Recent trends on the application of phytochemical-based compounds as additives in the fabrication of perovskite solar cells

Energy Advances, Journal Year: 2024, Volume and Issue: 3(4), P. 741 - 764

Published: Jan. 1, 2024

Phytochemical-based additives have functional groups that can modulate the nucleation and crystallization process of perovskite films resulting in improved optoelectronic degradation resistance.

Language: Английский

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