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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Electron Transport Bilayer Design for Perovskite‐Based Tandem Solar Cells Using Thermal Evaporation

Chemistry - Methods, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

The development of high‐performance perovskite solar cells (PSCs) and perovskite‐based tandem (PTSCs) has attracted significant attention from researchers owing to their simple cost‐effective fabrication process. However, careful consideration is required regarding the selection charge‐transport layers, which play a key role in improving efficiency stability devices. In p–i–n (inverted) PSCs, fullerene its derivatives are widely employed as electron‐transport layers (ETLs). Among them, compatible with low‐temperature vacuum‐based cell processes. single layer tends form nonuniform due aggregation propensity. Furthermore, it struggles withstand damage that occurs during formation transparent conductive configurations. To overcome limitation fullerene, employing bilayer ETL emerged promising strategy. Therefore, this study, evaporation processes for ETLs inverted PSCs focused on, emphasizing importance architectures enhancing durability PTSCs. discussion highlights material options examines optimal thickness parameters achieve superior efficiency. By providing comprehensive understanding ETLs, review aims guide future advancements PTSCs technologies.

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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Bifacially Reinforced Self‐Assembled Monolayer Interfaces for Minimized Recombination Loss and Enhanced Stability in Perovskite/Silicon Tandem Solar Cells

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

Published: May 12, 2025

Abstract Perovskite/silicon tandem solar cells have shown higher power conversion efficiencies (PCEs) than single‐junction cells. However, their record PCE still falls short of the theoretical maximum, and stability is significantly lower that crystalline silicon These challenges stem from substantial losses in open‐circuit voltage ( V OC ) instability wide‐bandgap perovskite devices, which are mainly caused by nonradiative recombination degradation at heterojunction interfaces, respectively. Specifically, weak adhesion between indium tin oxide (ITO) self‐assembled monolayers (SAMs), along with inadequate interactions SAMs perovskite, contributes to this instability. Herein, a novel SAM material, 4‐(11H‐benzo[a]carbazol‐11‐yl)butyl (4‐PhCz), has been developed bifacially reinforce interfaces enhancing coverage on ITO strengthening perovskites. The resulting 1.67 eV cell (PSCs) achieves 1.273 low loss 0.397 relative bandgap 22.53%. 4‐PhCz‐based perovskite/silicon 1.96 31.26%, retaining 92% its initial efficiency after 1000 h maximum point tracking (MPPT) under 1‐sun illumination nitrogen atmosphere 25 °C.

Language: Английский

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Design and applications of hole-selective self-assembled monolayers for perovskite photovoltaics

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158870 - 158870

Published: Dec. 1, 2024

Language: Английский

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