Divalent cation replacement strategy stabilizes wide-bandgap perovskite for Cu(In,Ga)Se2 tandem solar cells

Nature Photonics, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 3, 2025

Language: Английский

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Recent Progress and Advances of Perovskite Crystallization in Carbon‐Based Printable Mesoscopic Solar Cells

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

Published: Jan. 15, 2025

Carbon-based printable mesoscopic solar cells (p-MPSCs) offer significant advantages for industrialization due to their simple fabrication process, low cost, and scalability. Recently, the certified power conversion efficiency of p-MPSCs has exceeded 22%, drawing considerable attention from community. However, key challenge in improving device performance is achieving uniform high-quality perovskite crystallization within mesoporous structure. This review highlights recent advancements p-MPSCs, with an emphasis on controlling kinetics regulating morphology confined mesopores. It first introduces offering a solid foundation understanding behavior. Additionally, summarizes mechanisms crystal nucleation growth, explaining how these processes influence quality perovskites. Furthermore, commonly applied strategies enhancing quality, such as additive engineering, solvent evaporation controlling, post-treatment techniques, are also explored. Finally, proposes several potential suggestions aimed at further refining crystallization, inspiring continued innovation address current limitations advance development p-MPSCs.

Language: Английский

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Enlarging moment and regulating orientation of buried interfacial dipole for efficient inverted perovskite solar cells

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Feb. 1, 2025

Carrier transport and recombination at the buried interface of perovskite have seriously restricted further development inverted solar cells (PSCs). Herein, an interfacial dipolar chemical bridge strategy to address this issue is presented. 2-(Diphenylphosphino) acetic acid (2DPAA) selected as linker reconstruct dipole, which effectively enlarges dipole moment 5.10 D optimizes a positive orientation, thereby accelerating vertical hole transport, suppressing nonradiative promoting crystallization. The champion device yields high power conversion efficiency (PCE) 26.53% (certified 26.02%). Moreover, extended wide-bandgap large-area devices, delivers PCEs 22.02% 24.11%, respectively. optimized devices without encapsulation also demonstrate great long-term shelf operational stability. Our work highlights importance orientation realize efficient stable PSCs. hindered cells. Here, authors employ achieving maximum 24.11% for small-

Language: Английский

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Tailored Lattice-Matched Carbazole Self-Assembled Molecule for Efficient and Stable Perovskite Solar Cells

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: 147(9), P. 8004 - 8011

Published: Feb. 18, 2025

Self-assembled monolayer molecules have been widely employed as interfacial transport materials in inverted perovskite solar cells (PSCs), demonstrating high efficiency and improved device stability. However, self-assembling (SAM) often suffer from aggregation weak interactions with the layer, resulting inefficient charge transfer significant energy losses, ultimately limiting power conversion long-term stability of cells. In this work, we developed a series novel skeleton-matching carbazole isomer SAMs based on following key design principles: (1) introducing benzene ring structure to distort molecular skeleton SAM, thereby preventing achieving uniform distribution fluorine-doped tin oxide (FTO) substrates; (2) strategically incorporating methoxy groups onto at different positions (ortho, meta, para). These functional not only increase anchoring points layer but also fine-tune dipole moment. Among SAMs, m-PhPACz exhibits most favorable properties, maximum moment 2.4 D an O-O distance that aligns excellently diagonal lead ions adjacent lattice, enhancing SAM-perovskite interactions, facilitating efficient extraction, improving As result, new SAM-based PSCs achieved impressive 26.2%, 12.9% improvement. Moreover, devices demonstrated outstanding photothermal stability, retaining 96% their initial PCE after 1000 h 85 °C maintaining 90% 300 UV-light exposure.

Language: Английский

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In-situ passivation the defects both interfaces for n-i-p perovskite solar cells on regulatory electron-donating units of D-π-A dyes

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161053 - 161053

Published: Feb. 1, 2025

Language: Английский

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Co‐Adsorbent Boosting the Performance of Perovskite Solar Cell Based on Hole‐Selective Self‐Assembled Molecules

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

Published: Feb. 3, 2025

Abstract The inverted perovskite solar cells based on hole‐selective self‐assembled molecules (SAMs) have been setting new efficiency benchmarks. However, the agglomeration of SAM and lack defect passivation ability are two critical issues that need to be addressed. It is demonstrated by blending co‐adsorbent 4‐phosphoricbutyl ammonium iodide (4PBAI) with 4‐(7H‐dibenzo[c,g]carbazole‐7‐yl) phosphonic acid (4PADCB), enhanced homogeneity, conductivity, better energy levels can realized for co‐SAM contact. functional group 4PBAI also effectively passivate defects at buried interface template high‐quality growth. Assisted synergistic top modification, power conversion optimized device reaches 24.96%, which retain 95% initial after 1200 h in ambient unencapsulated device. findings suggest a well‐designed address limitations further enhance performance cutting‐edge SAMs.

Language: Английский

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Anchorable Polymers Enabling Ultra‐Thin and Robust Hole‐Transporting Layers for High‐Efficiency Inverted Perovskite Solar Cells

Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 9, 2025

Abstract Currently, the development of polymeric hole‐transporting materials (HTMs) lags behind that small‐molecule HTMs in inverted perovskite solar cells (PSCs). A critical challenge is conventional are incapable forming ultra‐thin and conformal coatings like self‐assembly monolayers (SAMs), especially for substrates with rough surface morphology. Herein, we address this by designing anchorable (CP1 to CP5). Specifically, coordinative pyridyl groups introduced as side‐chains on poly‐triarylamine (PTAA) backbone varied contents copolymerization method, resulting chemical interactions between substrates. The strong interaction allows them be processed into ultra‐thin, uniform, robust layers through employing low‐concentration solutions (0.1 mg mL −1 , vs. 2.0–5.0 PTAA), greatly decreasing charge transport losses. Moreover, upon systematically tuning substitution ratio, energy levels, wetting, solution processability, defect passivation capability such simultaneously optimized. Based optimal CP4, achieved highly efficient PSCs power conversion efficiencies (PCEs) up 26.21 %, which par state‐of‐the‐art SAM‐based PSCs. Furthermore, these devices exhibit enhanced stabilities under repeated current–voltage scans reverse bias ageing compared devices.

Language: Английский

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A low-cost and bendable “cage” for stable rigid and flexible perovskite solar cells with negligible lead leakage

Joule, Journal Year: 2025, Volume and Issue: unknown, P. 101816 - 101816

Published: Jan. 1, 2025

Language: Английский

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In situ Crosslinked Robust Molecular Zipper at the Buried Interface for Perovskite Photovoltaics

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

Published: Feb. 16, 2025

Abstract The brittle buried interface, characterized by weak adhesion to the substrate, numerous imperfections, and unfavorable strain, poses a significant challenge that impairs overall performance long‐term stability of perovskite solar cells (PSCs). Herein, robust molecular zipper is constructed through in situ polymerization self‐assembly monomer 4‐vinylbenzoic acid (VA), tightly link interface substrate n‐i‐p PSCs with an adhesive strength as high 10.77 MPa. modified exhibits improved morphology, suppressed defects, released matched energy level alignment. resulting deliver absolute gain ≥1.67% champion power conversion efficiency based on both one‐step deposition protocol two‐step one, demonstrating universality this strategy across different film‐processing scenarios. unencapsulated can retain 94.2% their initial after 550 h linear extrapolated T 90 value 1230 h, per ISOS‐L‐2 protocol. This work provides facile reinforce PSCs.

Language: Английский

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Fully Conjugated Co‐Self‐Assembled Monolayers for Efficient and Stable Inverted Perovskite Solar Cells

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

Published: March 17, 2025

Abstract [4‐(3,6‐dimethyl‐9H‐carbazol‐9‐yl)butyl]phosphonic acid (Me‐4PACz) consistently exhibits inhomogeneous distribution on the substrate, which makes it a challenge for growth of high‐quality perovskite film, resulting in undesired interfacial losses at buried interfaces. Moreover, flexible alkyl chains Me‐4PACz are not conducive to intermolecular interactions and hinder charge flow. Here, novel molecule with 4‐Methoxy‐N‐(4‐methoxyphenyl)‐N‐phenylaniline (TPA) carbazole backbone, named CzTPA is designed, constituted Co‐SAM Me‐4PACz. The two carboxyls end will act as an anchoring group cover inadequate coverage NiO x . methoxy TPA can passivation uncoordinated Pb 2+ interface by interaction Pb─O. Additionally, be restrained self‐aggregation interacting CzTPA. cooperation realizes more homogeneous , efficient transport, minimize defects. Accordingly, modification significantly enhance efficiency 1.54‐eV PSCs from 23.53% 25.66% sustain 91.4% its original after 1992 h under continuous illumination 65 °C. More importantly, 1.68 eV wide‐bandgap PSC achieved PCE 22.75% good photostability.

Language: Английский

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