Key Roles of Interfaces in Inverted Metal-Halide Perovskite Solar Cells

ACS Nano, Год журнала: 2024, Номер 18(16), С. 10688 - 10725

Опубликована: Апрель 11, 2024

Metal-halide perovskite solar cells (PSCs), an emerging technology for transforming energy into a clean source of electricity, have reached efficiency levels comparable to those commercial silicon cells. Compared with other types PSCs, inverted (IPSCs) shown promise regard commercialization due their facile fabrication and excellent optoelectronic properties. The interlayer interfaces play important role in the performance cells, not only affecting charge transfer transport, but also acting as barrier against oxygen moisture permeation. Herein, we describe summarize last three years studies that advantages interface engineering-based advances IPSCs. This review includes brief introduction structure working principle IPSCs, analyzes how affect IPSC devices from perspective photovoltaic device lifetime. In addition, comprehensive summary various engineering approaches solving these problems challenges including use interlayers, modification, defect passivation, others, is summarized. Moreover, based upon current developments breakthroughs, fundamental perspectives on future pathways are provided innovation design next-generation

Язык: Английский

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Anti‐Solvent‐Free Preparation for Efficient and Photostable Pure‐Iodide Wide‐Bandgap Perovskite Solar Cells

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(17)

Опубликована: Март 4, 2024

Abstract The perovskite/silicon tandem solar cell (TSC) has attracted tremendous attention due to its potential breakthrough the theoretical efficiency set for single‐junction cells. However, perovskite (PSC) designed as top component suffers from severe photo‐induced halide segregation owing mixed‐halide strategy achieving desirable wide‐bandgap (1.68 eV). Developing pure‐iodide perovskites is a promising route fabricate photostable TSCs. Here, we report efficient and PSCs made an anti‐solvent‐free (ASF) technique. ASF process achieved by mixing two precursor solutions, both of which are capable depositing corresponding films without involving anti‐solvent. mixed solution finally forms Cs 0.3 DMA 0.2 MA 0.5 PbI 3 film with bandgap 1.68 eV. Furthermore, methylammonium chloride additive applied enhance crystallinity reduce trap density films. As result, PSC delivers high 21.30 % excellent photostability, highest this type method significantly improves device reproducibility compared devices other anti‐solvent methods. Our findings provide novel recipe prepare PSCs.

Язык: Английский

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Small Molecule Regulatory Strategy for Inorganic Perovskite Solar Cells with 368 mV of V_OC Deficit and its Application in Tandem Devices

Advanced Energy Materials, Год журнала: 2024, Номер 14(26)

Опубликована: Апрель 25, 2024

Abstract Tandem solar cells combining perovskite and silicon have witnessed rapid development in recent years. However, the top cell, utilizing wide‐bandgap as absorbers generally suffer significant open‐circuit voltage ( V OC ) deficit, particularly for inorganic perovskite, which poses a considerable obstacle to enhancing power conversion efficiency (PCE). Here, modulation strategy by using 2,6‐pyridinedicarboxamide (PC), crystallization kinetics of film can be effectively regulated, specifically manifested relatively longer annealing time air, resulting sufficient growth grains. Additionally, PC situ passivate uncoordinated Pb 2+ , suppressing non‐radiative recombination charge carriers. Eventually, record PCE 22.07% is achieved based on n–i–p (IPSCs), also demonstrate highest above 1.34 (1.71 eV bandgap). More importantly, unencapsulated IPSCs show enhanced thermal stability photostability. Furthermore, are applied perovskite/silicon tandem (IPTSCs), 27.27% an impressive 2.024 obtained.

Язык: Английский

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Inorganic‐Derived 0D Perovskite Induced Surface Lattice Arrangement for Efficient and Stable All‐Inorganic Perovskite Solar Cells

Advanced Materials, Год журнала: 2024, Номер 36(45)

Опубликована: Авг. 17, 2024

The inverted inorganic CsPbI

Язык: Английский

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Nanoscale Local Contacts Enable Inverted Inorganic Perovskite Solar Cells with 20.8 % Efficiency

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(19)

Опубликована: Фев. 24, 2024

Abstract Inorganic perovskite solar cells (IPSCs) have gained significant attention due to their excellent thermal stability and suitable band gap (~1.7 eV) for tandem cell applications. However, the defect‐induced non‐radiative recombination losses, low charge extraction efficiency, energy level mismatches, so on render fabrication of high‐efficiency inverted IPSCs remains challenging. Here, use 3‐amino‐5‐bromopyridine‐2‐formamide (ABF) in methanol was dynamically spin‐coated surface CsPbI 2.85 Br 0.15 film, which facilitates limited etching defect‐rich subsurface layer, resulting formation vertical PbI 2 nanosheet structures. This enabled localized contacts between film electron transport suppress electron‐hole beneficial extraction. Additionally, C=O C=N groups ABF effectively passivated undercoordinated Pb 2+ at grain boundaries film. Eventually, we achieved a champion efficiency 20.80 % (certified 20.02 %) with enhanced stability, is highest value ever reported date. Furthermore, successfully prepared p‐i‐n type monolithic inorganic perovskite/silicon (IPSTSCs) an 26.26 %. strategy provided both fast efficient passivation electron‐selective interface.

Язык: Английский

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Light‐Driven Dynamic Defect‐Passivation for Efficient Inorganic Perovskite Solar Cells

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 20, 2024

Abstract Due to its soft lattice characteristics, all‐inorganic cesium lead halide (CsPbI 3‐x Br x ) perovskite is vulnerable external environmental stress such as moisture, polar solvent, illumination. resulting in structural defects (V I , i etc.) and ion mobility. However, most of the prior arts focus on short‐term static passivation, which has a negligible effect formed during solar cell operation. Herein, photoisomerizable molecule, 1,3,3‐trimethylindolino‐8′‐methoxybenzopyrylospiran (OMe‐SP), exhibiting light‐driven pre‐isomeric (SP) post‐isomeric (PMC) configurations, employed an interfacial protective layer top CsPbI . The present strategy not only effectively suppresses migration halogen ions, but also enables sustainable passivation defects, thereby significantly reducing charge recombination retarding degradation. Consequently, OMe‐SP‐modified cells (PSCs) exhibit superior stability, maintaining 91% their initial efficiency after aging 1032 h under maximum power point (MPP) tracking continuous one sun Meanwhile, achieves impressive conversion 22.20%, stands highest among cells. Overall, implementation this robust provides defect suppression for achieving both high PCE stable inorganic perovskite.

Язык: Английский

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Surface chemistry-induced reconstruction of inorganic perovskites for efficient and stable inverted solar cells

Joule, Год журнала: 2025, Номер unknown, С. 101826 - 101826

Опубликована: Фев. 1, 2025

Язык: Английский

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21.41%‐Efficiency CsPbI₃ Perovskite Solar Cells Enabled by an Effective Redox Strategy with 4‐Fluorobenzothiohydrazide in Precursor Solution

Advanced Functional Materials, Год журнала: 2023, Номер 34(10)

Опубликована: Ноя. 21, 2023

Abstract To simultaneously stabilize cesium lead triiodide (CsPbI 3 ) precursor solution and passivate the defects in CsPbI film is greatly significant for achieving highly stable efficient perovskite solar cells (PSCs). Herein, an effective redox 4‐fluorobenzothiohydrazide (FBTH) developed to iodine/lead‐related high‐quality film. The comprehensive research confirms that 1) a new compound FBTH‐I obtained from interaction between FBTH molecular iodine (I 2 solution, which can effectively impede formation of I molecule restrain − migration by forming N–H···I bond; 2) also Pb‐related via S···Pb interaction. Consequently, PSC based on FBTH‐treated exhibits fascinating power conversion efficiency (PCE) 21.41%, one highest PCE values among reported pure PSCs so far, outstanding stability against harsh conditions, such as thermal annealing continuous light‐illumination.

Язык: Английский

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Nanoscale Local Contacts Enable Inverted Inorganic Perovskite Solar Cells with 20.8 % Efficiency

Angewandte Chemie, Год журнала: 2024, Номер 136(19)

Опубликована: Фев. 24, 2024

Abstract Inorganic perovskite solar cells (IPSCs) have gained significant attention due to their excellent thermal stability and suitable band gap (~1.7 eV) for tandem cell applications. However, the defect‐induced non‐radiative recombination losses, low charge extraction efficiency, energy level mismatches, so on render fabrication of high‐efficiency inverted IPSCs remains challenging. Here, use 3‐amino‐5‐bromopyridine‐2‐formamide (ABF) in methanol was dynamically spin‐coated surface CsPbI 2.85 Br 0.15 film, which facilitates limited etching defect‐rich subsurface layer, resulting formation vertical PbI 2 nanosheet structures. This enabled localized contacts between film electron transport suppress electron‐hole beneficial extraction. Additionally, C=O C=N groups ABF effectively passivated undercoordinated Pb 2+ at grain boundaries film. Eventually, we achieved a champion efficiency 20.80 % (certified 20.02 %) with enhanced stability, is highest value ever reported date. Furthermore, successfully prepared p‐i‐n type monolithic inorganic perovskite/silicon (IPSTSCs) an 26.26 %. strategy provided both fast efficient passivation electron‐selective interface.

Язык: Английский

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Interfacial modification strategies to secure phase-stability for inorganic perovskite solar cells

Applied Physics Reviews, Год журнала: 2024, Номер 11(3)

Опубликована: Июль 1, 2024

The rapid success achieved from perovskite solar cell has drawn great expectations for commercialization of next-generation photovoltaics. Among the various materials, inorganic derivatives have been particular interest, ascribed to its superior thermal and chemical stability, which is a crucial criterion reliable long-term operation. Nonetheless, development efficient cells lagged organic–inorganic hybrid counterparts owing notorious phase-stability challenges associated with formation non-photoactive phases. early progress centered on stable phase-preparation leads effective bulk management through intermediate engineering compositional strategies. Yet, remain in securing as-formed phase throughout Accordingly, recent studies find interfacial modification strategies successful by constricting phase-transformation channels perspectives such as defect propagation, strain, component segregation, charge accumulation, external stresses. In this review, we start brief description advantages including optoelectronic properties. We then provide review instabilities. elaborate origins instabilities terms thermodynamics recently proposed intrinsic factors extrinsic that facilitate detrimental transformation. Finally, survey approaches stabilize interface managements outlook further progress.

Язык: Английский

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