Multifunctional entinostat enhances the mechanical robustness and efficiency of flexible perovskite solar cells and minimodules

Nature Photonics, Год журнала: 2024, Номер 18(4), С. 379 - 387

Опубликована: Янв. 18, 2024

Язык: Английский

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Rational molecular design of multifunctional self-assembled monolayers for efficient hole selection and buried interface passivation in inverted perovskite solar cells

Chemical Science, Год журнала: 2024, Номер 15(8), С. 2778 - 2785

Опубликована: Янв. 1, 2024

Self-assembled monolayers (SAMs) have been widely employed as the bottom-contact hole-selective layer (HSL) in inverted perovskite solar cells (PSCs). Besides manipulating electrical properties, molecularly engineering SAM provides an opportunity to modulate buried interface. Here, we successfully introduced Lewis-basic oxygen and sulfur heteroatoms through rational molecular design of asymmetric SAMs obtain two novel multifunctional SAMs, CbzBF CbzBT. Detailed characterization single-crystal structures device interfaces shows that enhanced packing, more effective ITO work function adjustment, interface passivation were achieved. Consequently, champion PSC employing CbzBT showed excellent power conversion efficiency (PCE) 24.0% with a high fill factor 84.41% improved stability. This demonstrates feasibility introducing defect-passivating heterocyclic groups into molecules help passivate interfacial defects PSCs. The insights gained from this strategy will accelerate development new HSLs for efficient

Язык: Английский

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Constructing robust heterointerfaces for carrier viaduct via interfacial molecular bridges enables efficient and stable inverted perovskite solar cells

Energy & Environmental Science, Год журнала: 2023, Номер 16(12), С. 5792 - 5804

Опубликована: Янв. 1, 2023

To ensure carrier selectivity, we propose an interfacial molecular bridge comprised of Ph-CH 2 N + H 3− n (CH 3 ) ammonium cation at the perovskite–substrate interface and reveal its underlying impact on PSCs performance.

Язык: Английский

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The Promise and Challenges of Inverted Perovskite Solar Cells

Chemical Reviews, Год журнала: 2024, Номер 124(19), С. 10623 - 10700

Опубликована: Авг. 29, 2024

Recently, there has been an extensive focus on inverted perovskite solar cells (PSCs) with a p-i-n architecture due to their attractive advantages, such as exceptional stability, high efficiency, low cost, low-temperature processing, and compatibility tandem architectures, leading surge in development. Single-junction perovskite-silicon (TSCs) have achieved certified PCEs of 26.15% 33.9% respectively, showing great promise for commercial applications. To expedite real-world applications, it is crucial investigate the key challenges further performance enhancement. We first introduce representative methods, composition engineering, additive solvent processing innovation charge transporting layers, interface fabricating high-efficiency stable PSCs. then delve into reasons behind excellent stability Subsequently, we review recent advances TSCs PSCs, including perovskite-Si TSCs, all-perovskite perovskite-organic TSCs. achieve final deployment, present efforts related scaling up, harvesting indoor light, economic assessment, reducing environmental impacts. Lastly, discuss potential PSCs future.

Язык: Английский

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Defect‐Passivating and Stable Benzothiophene‐Based Self‐Assembled Monolayer for High‐Performance Inverted Perovskite Solar Cells

Advanced Energy Materials, Год журнала: 2024, Номер 14(12)

Опубликована: Янв. 12, 2024

Abstract Effective passivation of defects at the buried interface between perovskite absorber and hole‐selective layer (HSL) is crucial for achieving high performance in inverted solar cells (PSCs). Additionally, HSL needs to possess compact molecular packing intrinsic photo‐ thermo‐stability ensure long‐term operation devices. In this study, a novel MeO‐BTBT‐based self‐assembled monolayer (SAM) reported serve as an efficient PSCs. Compared well‐established carbazole‐containing SAM MeO‐2PACz, MeO‐BTBT has flat more extended conjugation with large atomic radius sulfur atom. These induce stronger intermolecular interactions enable ordered be formed on indium–tin oxide (ITO) substrates. Meanwhile, atoms can coordinate Pb 2+ ions passivate absorber. The derived films show both photoluminescence (PL) quantum yield (13.2%) long lifetime (7.2 µs). PSCs based PCE 24.53% impressive fill factor 85.3%. PCEs devices maintain ≈95% their initial values after being aged 65 °C than 1000 h or continuous under 1‐sun illumination.

Язык: Английский

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A Comprehensive Review of Organic Hole‐Transporting Materials for Highly Efficient and Stable Inverted Perovskite Solar Cells

Advanced Functional Materials, Год журнала: 2024, Номер 34(25)

Опубликована: Фев. 7, 2024

Abstract Inverted perovskite solar cells (IPSCs) have attracted unprecedented attention due to their negligible hysteresis, long‐term operational stability, low temperature, and cost‐effective fabrication process, as well wide applications. The power conversion efficiency (PCE) of IPSCs has skyrocketed from 3.9% in 2013 certified 26.1% 2023, which is over the 25.8% regular counterpart, benefiting emergence a great number organic hole‐transporting materials (HTM). This review provides an overview recent development stability IPSCs, including small molecules conjugated conductive polymers. effective strategies for charge‐transport layer films are also discussed. Finally, prospective further outlined, developing novel fabricating techniques meet requirements commercial application.

Язык: Английский

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Bisphosphonate‐Anchored Self‐Assembled Molecules with Larger Dipole Moments for Efficient Inverted Perovskite Solar Cells with Excellent Stability

Advanced Materials, Год журнала: 2024, Номер 36(28)

Опубликована: Май 20, 2024

Abstract In the fabrication of inverted perovskite solar cells (PSCs), wettability, adsorbability, and compactness self‐assembled monolayers (SAMs) on conductive substrates have critical impacts quality films defects at buried perovskite‐substrate interface, which control efficiency stability devices. Herein, three bisphosphonate‐anchored indolocarbazole (IDCz)‐derived SAMs, IDCz‐1, IDCz‐2, IDCz‐3, are designed synthesized by modulating position two nitrogen atoms IDCz unit to improve molecular dipole moments strengthen π–π interactions. Regulating work functions (WF) FTO electrodes through energy levels, band bends upwards with a small offset for ITO/IDCz‐3/perovskite, thereby promoting hole extraction blocking electrons. As result, PSC employing IDCz‐3 as hole‐collecting layer exhibits champion PCE 25.15%, is record multipodal SAMs‐based PSCs. Moreover, unencapsulated device can be stored least 1800 h little degradation in performance.

Язык: Английский

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Stabilizing Precursor Solution and Controlling Crystallization Kinetics Simultaneously for High‐Performance Perovskite Solar Cells

Advanced Materials, Год журнала: 2023, Номер 35(44)

Опубликована: Сен. 5, 2023

The efficiency of metal halide perovskite solar cells (PSCs) has skyrocketed; however, defects created by aging precursor solutions and during crystallization pose a significant barrier to the reproducibility cells. In this work, fluoro-N,N,N″,N″-tetramethylformamidinium hexafluorophosphate (F-(CH3 )4 CN2 PF6 , abbreviated as TFFH) is introduced stabilize solution improve dynamics simultaneously for high-performance formamidinium lead iodide (FAPbI3 )-based indoor photovoltaics. TFFH stabilizes inhibiting oxidation I- reducing newly generated I0 passivates undercoordinated Pb2+ interacting with Pb─I framework. Time-resolved optical diagnostics show prolonged in situ defect passivation due presence strong FA+ ···TFFH···Pb─I interaction. Simultaneous regulation guarantee larger grain sizes, better crystal orientation, fewer more efficient charge extraction PSCs. optimized PSCs achieve improved stability reach an 42.43% at illumination 1002 lux, which highest among all It anticipated that concurrent stabilization will emerge prevalent approach enhancing perovskite.

Язык: Английский

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Surface Passivation with Diaminopropane Dihydroiodide for p‐i‐n Perovskite Solar Cells with Over 25% Efficiency

Advanced Functional Materials, Год журнала: 2023, Номер 34(12)

Опубликована: Дек. 8, 2023

Abstract At present, one of the major factors limiting further improvement inverted (p‐i‐n) perovskite solar cells (PSCs) is trap‐assisted non‐radiative recombination at perovskite/electron transporting layer (ETL) interface. Surface passivation with organic ammonium salt a powerful strategy to improve performance PSCs. Herein, an effective method by using propylamine hydroiodide (PAI) and 1,3‐diaminopropane dihydroiodide (PDADI) reported modify perovskite/ETL These two salts do not form new but directly passivate defects on surface after annealing. The results show that PDADI‐modified films possess lower defect density less as well improved charge carrier transport. Based this strategy, p‐i‐n PSCs deliver impressive efficiency 25.09% (certified 24.58%) open‐circuit voltage 1.184 V. Furthermore, unencapsulated also exhibit good storage stability, retaining 91% initial PCE 65 °C in N 2 glove box for 1300 h. This provides efficient route fabricate highly stable structured

Язык: Английский

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High‐Efficiency Perovskite Solar Cells with Improved Interfacial Charge Extraction by Bridging Molecules

Advanced Materials, Год журнала: 2024, Номер 36(38)

Опубликована: Июль 26, 2024

The interface between the perovskite layer and electron transporting is a critical determinate for performance stability of solar cells (PSCs). heterogeneity critically affects carrier dynamics at buried interface. To address this, bridging molecule, (2-aminoethyl)phosphonic acid (AEP), introduced modification SnO

Язык: Английский

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