A Review on Recent Advances in Flexible Perovskite Solar Cells

Solar RRL, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 26, 2025

Flexible perovskite solar cells (FPSCs), featured with lightweight, high efficiency, and low cost, have attracted much attention anticipating in applications on wearable electronics, near‐space vehicles, internet of things. High efficiency mechanical stability are two main factors the study FPSCs toward practical applications. In recent few years, many breakthroughs materials modification device innovation make power conversion reach over 25%. A comprehensive review thus is conducted to elucidate critical issues including flexible substrates, transparent electrodes, charge transport layers, films, modifications for enhancement FPSCs, which expected promote future development FPSCs.

Language: Английский

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Buried Interface Passivation with 3,4,5-Trifluorophenylboronic Acid Enables Efficient and Stable Inverted Perovskite Solar Cells

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

The p-i-n type perovskite solar cells with a nickel oxide (NiOx) hole transport layer in combination self-assembled monolayers (SAMs) have high power conversion efficiency (PCE) of over 26%. surface properties the SAM significant impact on growth and crystallization film. In meanwhile, defects formed during thermal annealing at interface would act as charge recombination centers, decreasing device performance stability. To address these issues, this work introduces 3,4,5-trifluorophenylboronic acid (3,4,5-3FPBA) interfacial modification to improve buried that enable better With 3,4,5-3FPBA layer, based composition Cs0.05(FA0.98MA0.02)0.95Pb(I0.95Br0.05)3, increased from 21.99% 24.02%. A similar improvement was observed for Cs0.05FA0.82MA0.13Pb(I0.85Br0.15)3, where 21.87% 22.76%. universality has been confirmed. addition, resulting showed improved stability, maintaining 75% its initial after 500 h continuous heating 85 °C unencapsulated devices.

Language: Английский

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Modulating competitive adsorption of hybrid self-assembled molecules for efficient wide-bandgap perovskite solar cells and tandems

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

Published: March 28, 2025

The employment of self-assembled molecular hybrid could improve buried interface in perovskite solar cells (PSCs). However, the interplay among monolayers (SAMs) during deposition process has not been well-studied. Herein, we study interaction between co-adsorbents and commonly used SAM material, [4-(3,6-dimethyl-9H-carbazol-9-yl)butyl]phosphonic acid (Me-4PACz) for wide-bandgap (WBG) PSCs. It is found that co-adsorbent, 6-aminohexane-1-sulfonic (SA) tends to fill uncovered sites without interference with Me-4PACz, ensuring formation a dense hole selective layer. Moreover, use SA/Me-4PACz mixed SAMs effectively reduce interfacial non-radiative recombination loss, optimize energy alignment at regulate crystallization WBG perovskite. As result, 1.77 eV PSCs deliver power conversion efficiency (PCE) 20.67% (20.21% certified) an impressive open-circuit voltage (VOC) 1.332 V (1.313 certified). By combining 1.26 narrow-bandgap (NBG) PSC, further fabricate 2-terminal all-perovskite tandem (TSCs) PCE 28.94% (28.78% 0.087 cm2 23.92% mini-module aperture area 11.3 cm2.

Language: Английский

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High‐Efficiency and Stable Perovskite Solar Cells via Buried Interface Modification with Multi‐Functional Phosphorylcholine Chloride

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(40)

Published: June 21, 2024

Abstract The electron transport layer (ETL), perovskite layer, hole and electrode collectively constitute the solar cells (PSCs). Each of these layers plays a critical role in performance devices. However, there are mismatches crystal structure energy levels between ETL materials resulting numerous defects at their interface. In this study, multifunctional organic molecule called phosphorylcholine chloride is designed to modify interface SnO 2 layer. This modification serves both reduce oxygen vacancy passivate Consequently, conductivity mobility improved, higher‐quality film obtained. Ultimately, optimized PSC device achieves an impressive champion power conversion efficiency (PCE) 24.34% with minimal hysteresis index. Even after 1200 h ambient exposure 25 °C 25% relative humidity without encapsulation, maintains 91.44% its initial efficiency. Additionally, PCE 22.38% attained flexible PSCs. research will pave way for development low defects, high stability as well cells.

Language: Английский

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Advancement in indoor energy harvesting through flexible perovskite photovoltaics for self- powered IoT applications

Nano Energy, Journal Year: 2024, Volume and Issue: 129, P. 109994 - 109994

Published: July 24, 2024

Language: Английский

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2,2′‐Bipyridyl‐4,4′‐Dicarboxylic Acid Modified Buried Interface of High‐Performance Perovskite Solar Cells

Angewandte Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 15, 2024

Abstract The regulation of interfaces remains a critical and challenging aspect in the pursuit highly efficient stable perovskite solar cells (PSCs). Here, 2,2′‐bipyridyl‐4,4′‐dicarboxylic acid ( HBPDC ) is incorporated as an interfacial layer between SnO 2 layers PSCs. two carboxylic moieties on bind to through esterification, while its nitrogen atoms, possessing lone electron pairs, interact with uncoordinated lead (Pb 2+ atoms Lewis acid‐base interactions. This dual functionality enables simultaneous passivation surface defects both buried layers. In addition, electron‐deficient nature enhances energy band alignment facilitates transfer from . Furthermore, incorporation strengthens adhesion, improving mechanical reliability. As result, PSCs exhibited impressive power conversion efficiency (PCE) 25.41 % under standard AM 1.5G conditions, along remarkable environmental stability.

Language: Английский

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Tailoring the permittivity of passivated dyes to achieve stable and efficient perovskite solar cells with modulated defects

Materials Today Advances, Journal Year: 2024, Volume and Issue: 22, P. 100501 - 100501

Published: May 21, 2024

Additive engineering has been demonstrated to effectively mitigate carrier losses associated with high surface defects of perovskite at grain boundaries, bulk, and interfaces. Nevertheless, there are persistent challenges in enhancing the passivation effects interfaces without compromising extraction efficiency. In this work, a feasible strategy incorporating multiple functional groups developed simultaneously passivate boundaries/interfaces, enhance charge transport by tuning permittivity (εr). Two novel D-π-A type molecules, (Z)-3-((4'-(bis(4-methoxyphenyl)amino)-[1,1′-biphenyl]-4-yl)methylene)-5- fluoroindolin-2-one (TBI) (Z)-2-(5-((4'-(bis(4-methoxyphenyl)amino)-[1,1′-biphenyl]-4-yl) methylene)-4-oxo-2-thioxothiazolidin-3-yl)acetic acid (TBR) were synthesized. Due introduction rhodanine acceptor, εr dye molecules is significantly increased (εr TBR 2.5, TBI 1.9), making closer that spiro-OMeTAD 2.9), which helps reduce dielectric mismatch between top HTL. Moreover, strong coordination interactions Pb2+/FA+ SnO2-layer thioxothiazolidin-3-acetic boundaries The PSC fabricated based on shows improved VOC, JSC, FF, resulting peak PCE 23.74 %, along remarkable stability maintaining above 86 % initial performance after 1440 h aging air 60 relative humidity. This work sets stage for further improving solar cells.

Language: Английский

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Highly Oriented FAPbI₃ via 2D Ruddlesden Popper Perovskite Template Growth

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(31)

Published: May 21, 2024

Abstract 2D perovskites are demonstrated as the growth template for modulation of phase transition and crystallization formamidinium lead triiodide (FAPbI 3 ). However, it is challenging to obtain highly oriented α‐FAPbI regulate at bottom FAPbI film. Here, a (BA) 2 PbI 4 layer with preferred orientation introduced perform quasi‐epitaxial , which triggers perovskite formation. Owing assembly [PbI 6 ] 4− octahedral on template, (100) from top attained. At optimum concentration, gradually vanish due extrusion BA + cation guarantees charge transport bottom. Consequently, strategy effectively promotes film quality suppresses non‐radiative recombination. The efficiency solar cells (PSCs) promoted 23.06% 24.78%.

Language: Английский

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Micro-strain regulation strategy to stabilize perovskite lattice based on the categories and impact of strain on perovskite solar cells

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 1, 2024

Language: Английский

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Buried Interface Smoothing Boosts the Mechanical Durability and Efficiency of Flexible Perovskite Solar Cells

Energies, Journal Year: 2025, Volume and Issue: 18(1), P. 174 - 174

Published: Jan. 3, 2025

Flexible perovskite solar cells (F-PSCs) have the advantages of high power-per-weight, solution processability, and bending durability emerged as a competitive photovoltaic technology for various applications. As core electron transport layer (ETL) in n-i-p-type device configurations, solution-processed SnO2 generally suffers from serious defect stacking on films, compromising charge properties performance resulting devices. Herein, we proposed media-filling strategy to optimize contact quality at buried interface by introducing Al2O3 nanoparticles surface. Rather than forming compact insulating layer, can fill grain boundaries smooth substrate Optimized interfacial under careful concentration control rationally minimize area with surface imperfections mitigate trap-assisted recombination. Furthermore, reduced roughness facilitates uniform deposition oriented growth upper film. result, target F-PSCs achieved an impressive efficiency 23.83% retained 80% initial after 5000 cycles radius four mm.

Language: Английский

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