Influence of F‐containing Materials on Perovskite Solar Cells

ChemSusChem, Journal Year: 2024, Volume and Issue: 17(21)

Published: May 21, 2024

Abstract Perovskite solar cells (PSCs) are usually modified and passivated to improve their performance stability. The interface modification bulk doping the two basic strategies. Fluorine (F)‐containing materials highly favored because of unique hydrophobicity coordination ability. This review discusses characteristics F, principles improving photovoltaic stability PSC devices using F‐containing materials. We systematically summarized latest progress in application achieve efficient stable PSCs on several key layers. It is believed that this work will afford significant understanding inspirations toward future directions PSCs, provide profound insights for development PSCs.

Language: Английский

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NiO_x Passivation in Perovskite Solar Cells: From Surface Reactivity to Device Performance

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(32), P. 42835 - 42850

Published: Aug. 1, 2024

Nonstoichiometric nickel oxide (NiOx) is one of the very few metal oxides successfully used as hole extraction layer in p–i–n type perovskite solar cells (PSCs). Its favorable optoelectronic properties and facile large-scale preparation methods are potentially relevant for future commercialization PSCs, though currently low operational stability PSCs reported when a NiOx direct contact with absorber. Poorly understood degradation reactions at this interface seen cause inferior stability, variety passivation approaches have been shown to be effective improving overall cell performance. To gain better understanding processes happening interface, we systematically passivated specific defects on three different categories organic/inorganic compounds. The effects (MAPbI3) deposited top were investigated using X-ray photoelectron spectroscopy (XPS), diffraction (XRD), scanning electron microscopy (SEM). Here, find that perovskite's structural film formation can significantly affected by treatment surface. In combination density functional theory (DFT) calculations, likely origin NiOx–perovskite interactions proposed. surface layers incorporated into MAPbI3-based influence device performance was current–voltage (J–V) characterization, impedance (IS), open circuit voltage decay (OCVD) measurements. Interestingly, superior due must not relate high stability. discrepancy comes from excess ions which negatively impacts all parameters.

Language: Английский

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Ionic liquid optimized buried interface between spray-coated NiOX and perovskite for efficient solar cells

Materials Today Energy, Journal Year: 2023, Volume and Issue: 38, P. 101453 - 101453

Published: Nov. 10, 2023

Language: Английский

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Triphenylamine-based interlayer with carboxyl anchoring group for tuning of charge collection interface in stabilized p-i-n perovskite solar cells and modules

Journal of Power Sources, Journal Year: 2024, Volume and Issue: 604, P. 234436 - 234436

Published: April 12, 2024

Language: Английский

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Enhanced chemical interaction between ionic liquid and halide perovskite to improve performance of perovskite solar cells

Materials Today Energy, Journal Year: 2024, Volume and Issue: 43, P. 101593 - 101593

Published: May 8, 2024

Language: Английский

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Instability analysis of perovskite solar cells via short-circuit impedance spectroscopy: A case study on NiOx passivation

Journal of Applied Physics, Journal Year: 2024, Volume and Issue: 136(9)

Published: Sept. 4, 2024

Perovskite solar cells (PSCs) continue to be the “front runner” technology among emerging photovoltaic devices in terms of power conversion efficiency and versatility applications. However, improving stability understanding their relationship with ionic–electronic transport mechanisms challenging. In this work, a case study NiOx-based inverted PSCs effect different interface passivating treatments on device performance is presented. Impedance spectroscopy (IS) measurements short-circuit conditions were performed under illumination intensities, as well bias-stress operational tests constant intensity. Surface that involved bulky Lewis bases resulted better more stable performance. contrast, acidic anion donors could induce both an initial decrease characteristic three-arcs impedance Nyquist plot subsequent instability during light exposure. Drift–diffusion simulations suggest strong modifications surface recombination at hole material, for ion concentration mobilities perovskite. Importantly, capacitance resistance are shown peak maximum minimum values, respectively, around mobile (Nion) 1016 1017 cm−3. These features relate transition from drift-, low Nion below threshold value, diffusion-dominated bulk perovskite, high beyond value. Our results introduce general route characterization paths via IS conditions.

Language: Английский

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Cellulose Nanocrystal-Incorporated MAPbI₃ for Inverted Perovskite Solar Cells with Enhanced Efficiency and Stability

ACS Applied Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 9, 2024

Language: Английский

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In‐Situ Polymerization Strategies for Flexible Perovskite Solar Cells: Mechanisms and Prospects

Advanced Materials Technologies, Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

Abstract Flexible perovskite solar cells (FPSCs) possess great market competitiveness in the field of portable devices. However, internal defects and tensile stress will inevitably be introduced during preparation operation FPSCs, cracks delamination easily occur practical operations such as bending folding, which is adverse to long‐term stability Polymers, precursor additives containing various functional groups, are widely applied for crystallization regulation flexibility enhancement films. Benefiting from remarkable achievements residual release improvement perovskite, strategies based on in‐situ polymerization reported not only rigid PSCs but also FPSCs. Here, FPSCs systematically summarized. First, factors affecting performance discussed defects, stress, external environment. Then, functions polymers listed, including control, moisture resistance enhancement, film toughening. Next, mechanisms advantages polymerization, by elaborated. Finally, characteristics summarized prospects future development concluded.

Language: Английский

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Multidentate Chelation Defect Passivation via Hyperbranched Polysiloxane for Efficient and Stable Inverted Perovskite Solar Cells

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 111084 - 111084

Published: April 1, 2025

Language: Английский

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Fluorinated Polyimide Tunneling Layer for Efficient and Stable Perovskite Photovoltaics

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(21)

Published: March 26, 2024

Abstract Despite the remarkable progress of perovskite solar cells (PSCs), challenges remain in terms finding effective and viable strategies to enhance their long‐term stability while maintaining high efficiency. In this study, a new insulating hydrophobic fluorinated polyimide (FPI: 6FDA‐6FAPB) was used as interface layer between hole transport (HTL) PSCs. The functional groups FPI play pivotal role passivating defects within device. Due its work function, demonstrates field‐effect passivation (FEP) capabilities an layer, effectively mitigating non‐radiative recombination at interface. Notably, does not impede carrier transmission interface, which is attributed presence tunneling effects. optimized PSCs achieve outstanding power conversion efficiency (PCE) 24.61 % demonstrate excellent stability, showcasing efficacy enhancing device performance reliability.

Language: Английский

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