Intermolecular Interaction Induced Synergistic Uniform Passivation of Grain Boundary Multiple Defects Enables High‐Performance Inverted Perovskite Solar Cells

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

Published: March 16, 2025

Abstract Inverted perovskite solar cells (PSCs) have received significant attention due to prominent advancements in power conversion efficiency (PCE) and long‐term stability. However, the further improvement of PCE stability is still impeded by inefficient grain boundary (GB) interface synergistic passivation method mainly induced uneven distribution passivators. Herein, a simple effective intermolecular interaction‐induced uniform defect strategy reported through functional group functionalization. (S)‐2‐amino‐3‐guanidinopropanoic acid dihydrochloride (AGAD) 2‐aminoethanesulphonamide monohydrochloride (AESM) are used as additive surface modifiers, respectively. AGAD AESM can synergistically passivate multiple defects at GBs films. Moreover, hydrogen bond interaction between results GBs, which facilitates efficient passivation. The remarkably suppressed nonradiative recombination losses enable inverted devices with 26.14%, one highest PCEs for PSCs using vacuum flash evaporation technique. passivated retain 90% their initial after 1200 h continuous maximum point tracking. This work proposes an avenue minimize bulk interfacial rationally controlling passivators via modulating interaction.

Language: Английский

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Concentration Dependent Modulation in Optoelectronic Traits of Self‐Collated CsPbBr₃ Perovskites

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Self-collation of perovskite nanocrystals into superstructures larger length scales has been growing in research interest due to their dramatically enhanced performance various nano-devices, modulating optical and electrical traits. Herein, the unique concentration-dependent self-assembly phenethylamine (PEA)-capped CsPbBr3 (PCPB) perovskites spanning a size range nano micron level without structural phase alteration is infered. By optimizing synthetic parameters like PEA amount, solvents, self-coalescence PCPB crystal growth controlled. Furthermore, highest-concentrated (C5) improved charge transfer (CT) efficiency 1,4-Napthoquinone (NPQ), corroborated with stronger binding between C5 NPQ, compared lowest-concentrated (C1). Incorporating NPQ such enhances local conductance unveiling CT-induced current rise, while detrimental insulating property molecules reduces C1. These outcomes offer foundation for tailoring properties self-assembled optoelectronic devices energy conversion technologies.

Language: Английский

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Reducing the Vibration of Carbazole‐Based Self‐Assembled Monolayers for High‐Performance Inverted Perovskite Solar Cells Through the Deuteration Strategy

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 4, 2025

Carbazole-based self-assembled small molecules are promising and commonly used hole transport layers (HTLs) materials for inverted perovskite solar cells (IPSCs). Here, a novel perdeuterated carbazole-based SAM named 4PACzd8 is obtained. Owing to the deuteration strategy, which causes reduction in molecular vibration frequency, modulates crystallization atop suppresses interfacial non-radiative recombination. Furthermore, it noteworthy that demonstrates heightened UV absorption properties, thereby offering enhanced protection underlying film from degradation resulting exposure. Compared with non-deuterated analog 4PACz, champion device employing showed higher power conversion efficiency (PCE) of 24.87% excellent stability. The impressive PCE by far one highest values IPSCs simple SAMs as HTLs.

Language: Английский

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Numerical Modeling and Performance Analysis of Rubidium-Based Double Perovskite Solar Cells: A Comprehensive study

Journal of Physics and Chemistry of Solids, Journal Year: 2025, Volume and Issue: unknown, P. 112797 - 112797

Published: April 1, 2025

Language: Английский

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Advancing Self‐Assembled Molecules Toward Interface‐Optimized Perovskite Solar Cells: from One to Two

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

Published: April 29, 2025

Abstract Perovskite solar cells (PSCs) have rapidly gained prominence as a leading candidate in the realm of solution‐processable third‐generation photovoltaic (PV) technologies. In high‐efficiency inverted PSCs, self‐assembled monolayers (SAMs) are often used hole‐selective layers (HSLs) due to advantages high transmittance, energy level matching, low non‐radiative recombination loss, and tunable surface properties. However, SAMs been recognized suffer from some shortcomings, such incomplete coverage, weak bonding with substrate or perovskite, instability, so on. The combination different so‐called co‐SAM is an effective strategy overcome this challenge. Perspective, latest achievements molecule design, deposition method, working principle, application discussed. This comprehensive overview milestones advancing research field, coupled in‐depth analysis improved interface properties using approach, aims offer valuable insights into key design principles. Furthermore, lessons learned will guide future development SAM‐based HSLs perovskite‐based optoelectronic devices.

Language: Английский

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Stepwise energy level regulation via bilayer self-assembled hole-transport materials for efficient and stable inverted perovskite solar cells

Journal of Energy Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

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A Comprehensive Review of Self-Assembled Monolayers as Hole-Transport Layers in Inverted Perovskite Solar Cells

Energies, Journal Year: 2025, Volume and Issue: 18(10), P. 2577 - 2577

Published: May 16, 2025

The hole-transport layer (HTL) plays a pivotal role in engineering high-performance inverted perovskite solar cells (PSCs), as it governs both hole extraction/transport dynamics and critically impacts the crystallization quality of absorber device architectures. Recent advancements have highlighted self-assembled monolayers (SAMs) promising candidates for next-generation HTL materials PSCs due to their intrinsic advantages over conventional counterparts. These molecularly engineered interfaces demonstrate superior characteristics including simplified purification processes, tunable molecular structures, enhanced interfacial compatibility with substrates. This review systematically examines progress, existing challenges, future prospects SAM-based HTLs photovoltaic systems, aiming establish systematic framework understanding structure–property relationships. is organized into three sections: (1) fundamental architecture PSCs, (2) design principles SAMs emphasis on head-group functionality, (3) recent breakthroughs SAM-engineered modification strategies optimization. Through critical analysis performance benchmarks approaches, we elucidate technological merits inherent limitations SAM implementation devices. Furthermore, propose strategic directions advancing development, focusing customization achieve efficiency stability targets. comprehensive work aims knowledge platform accelerating rational SAM-modified optoelectronic

Language: Английский

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A multifunctional strategy to improve the efficiency and stability of organic solar cells via a 2PACz/MA composite hole transport layer

Journal of Materials Chemistry A, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A novel 2PACz/MA composite HTL strategy improves the efficiency and stability of OSCs by optimizing interface quality.

Language: Английский

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