Self-Assembled Monolayers for Interfacial Engineering in Solution-Processed Thin-Film Electronic Devices: Design, Fabrication, and Applications

Chemical Reviews, Год журнала: 2024, Номер 124(5), С. 2138 - 2204

Опубликована: Фев. 29, 2024

Interfacial engineering has long been a vital means of improving thin-film device performance, especially for organic electronics, perovskites, and hybrid devices. It greatly facilitates the fabrication performance solution-processed devices, including field effect transistors (OFETs), solar cells (OSCs), perovskite (PVSCs), light-emitting diodes (OLEDs). However, due to limitation traditional interfacial materials, further progress these devices is hampered particularly in terms stability, flexibility, sensitivity. The deadlock gradually broken through development self-assembled monolayers (SAMs), which possess distinct benefits transparency, diversity, sensitivity, selectivity, surface passivation ability. In this review, we first showed evolution SAMs, elucidating their working mechanisms structure–property relationships by assessing wide range SAM materials reported date. A comprehensive comparison various growth, fabrication, characterization methods was presented help readers interested applying works. Moreover, recent design applications mainstream electronic OFETs, OSCs, PVSCs OLEDs, summarized. Finally, an outlook prospects section summarizes major challenges SAMs used

Язык: Английский

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Target Therapy for Buried Interface Enables Stable Perovskite Solar Cells with 25.05% Efficiency

Advanced Materials, Год журнала: 2023, Номер 35(39)

Опубликована: Июль 17, 2023

The buried interface in perovskite solar cells (PSCs) is pivotal for achieving high efficiency and stability. However, it challenging to study optimize the due its non-exposed feature. Here, a facile effective strategy developed modify SnO2 /perovskite by passivating defects modulating carrier dynamics via incorporating formamidine oxalate (FOA) nanoparticles. Both formamidinium ions show longitudinal gradient distribution layer, mainly accumulating at interface, which enables high-quality upper films, minimized defects, superior contacts, matched energy levels between . Significantly, FOA can simultaneously reduce oxygen vacancies tin interstitial on surface FA+ /Pb2+ associated interface. Consequently, treatment significantly improves of PSCs from 22.40% 25.05% their storage- photo-stability. This method provides an target therapy achieve very

Язык: Английский

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Recent advances in dopant-free organic hole-transporting materials for efficient, stable and low-cost perovskite solar cells

Energy & Environmental Science, Год журнала: 2022, Номер 15(9), С. 3630 - 3669

Опубликована: Янв. 1, 2022

This article reviews important advances in dopant-free organic hole-transporting materials for efficient and stable perovskite solar cells since 2020.

Язык: Английский

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Stabilizing Buried Interface via Synergistic Effect of Fluorine and Sulfonyl Functional Groups Toward Efficient and Stable Perovskite Solar Cells

Nano-Micro Letters, Год журнала: 2022, Номер 15(1)

Опубликована: Дек. 29, 2022

The interfacial defects and energy barrier are main reasons for nonradiative recombination. In addition, poor perovskite crystallization incomplete conversion of PbI2 to restrict further enhancement the photovoltaic performance devices using sequential deposition. Herein, a buried interface stabilization strategy that relies on synergy fluorine (F) sulfonyl (S=O) functional groups is proposed. A series potassium salts containing halide non-halogen anions employed modify SnO2/perovskite interface. Multiple chemical bonds including hydrogen bond, coordination bond ionic realized, which strengthens contact defect passivation effect. interaction between modification molecules along with SnO2 heightens incessantly as number S=O F augments. strength modifiers well gradually increases increase in F. effect positively correlated strength. kinetics regulated through compromise wettability substrates. Compared Cl-, all perform better optimization, band regulation passivation. device bis (fluorosulfonyl) imide achieves tempting efficiency 24.17%.

Язык: Английский

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Rapid advances enabling high-performance inverted perovskite solar cells

Nature Reviews Materials, Год журнала: 2024, Номер 9(6), С. 399 - 419

Опубликована: Май 17, 2024

Язык: Английский

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Multifunctional Small Molecule as Buried Interface Passivator for Efficient Planar Perovskite Solar Cells

Advanced Functional Materials, Год журнала: 2023, Номер 33(22)

Опубликована: Март 2, 2023

Abstract The improvement of power conversion efficiency (PCE) and stability the perovskite solar cell (PSC) is hindered by carrier recombination originating from defects at buried interface PSC. It crucial to suppress nonradiative facilitate transfer in PSC via engineering. Herein, P‐biguanylbenzoic acid hydrochloride (PBGH) developed modify tin oxide (SnO 2 )/perovskite interface. effects PBGH on transportation, growth, defect passivation, performance are systematically investigated. On one hand, can effectively passivate trap states Sn dangling bonds O vacancies SnO surface Lewis acid/base coordination, which conducive improving conductivity film accelerating electron extraction. other modification assists formation high‐quality with low density due its strong interaction PbI . Consequently, PBGH‐modified exhibits a champion 24.79%, highest PCEs among all FACsPbI 3 ‐based PSCs reported date. In addition, stabilities films devices under high temperature/humidity light illumination conditions also studied.

Язык: Английский

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Molecular Bridge on Buried Interface for Efficient and Stable Perovskite Solar Cells

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(34)

Опубликована: Июнь 26, 2023

Abstract The interface of perovskite solar cells (PSCs) is significantly important for charge transfer and device stability, while the buried with impact on film growth has been paid less attention. Herein, we use a molecular modifier, glycocyamine (GDA) to build bridge SnO 2 /perovskite, resulting in superior interfacial contact. This achieved through strongly interaction between GDA , which also appreciably modulates energy level. Moreover, can regulate crystal growth, yielding enlarged grain size absence pinholes, exhibiting substantially reduced defect density. Consequently, PSCs modification demonstrate significant improvement open circuit voltage (close 1.2 V) fill factor, leading an improved power conversion efficiency from 22.60 % 24.70 %. Additionally, stabilities devices under maximum point 85 °C heat both perform better than control devices.

Язык: Английский

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Pre‐Buried ETL with Bottom‐Up Strategy Toward Flexible Perovskite Solar Cells with Efficiency Over 23%

Advanced Functional Materials, Год журнала: 2023, Номер 33(28)

Опубликована: Апрель 4, 2023

Abstract With rapid development of photovoltaic technology, flexible perovskite solar cells (f‐PSCs) have attracted much attention for their light weight, high flexibility and portability. However, the power conversion efficiency (PCE) achieved so far is not yet comparable to that rigid devices. This mainly due great challenge depositing homogeneous high‐quality films on substrate. In this study, pre‐buried 3‐aminopropionic acid hydroiodide (3AAH) additives into electron transport layer (ETL) modified ETL/perovskite (PVK) interface by a bottom‐up strategy. 3AAH treatment induced templated grain growth improved quality ETL. By this, residual stresses generated in PVK during annealing‐cooling process are released converted micro‐compressive stresses. As result, defect density f‐PSCs with reduced performance greatly improved, reaching an exceptional PCE 23.36%. strategy provides new idea bridge gap between

Язык: Английский

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Inhibition of Ion Migration for Highly Efficient and Stable Perovskite Solar Cells

Advanced Materials, Год журнала: 2023, Номер 35(52)

Опубликована: Апрель 17, 2023

Abstract In recent years, organic‐inorganic halide perovskites are now emerging as the most attractive alternatives for next‐generation photovoltaic devices, due to their excellent optoelectronic characteristics and low manufacturing cost. However, resultant perovskite solar cells (PVSCs) intrinsically unstable owing ion migration, which severely impedes performance enhancement, even with device encapsulation. There is no doubt that investigation of migration summarization advances in inhibition strategies necessary develop “state‐of‐the‐art” PVSCs high intrinsic stability accelerated commercialization. This review systematically elaborates on generation fundamental mechanisms PVSCs, impact hysteresis, phase segregation, operational stability, characterizations PVSCs. Then, many related works inhibiting toward highly efficient stable summarized. Finally, perspectives current obstacles prospective boost meet all requirements commercialization success

Язык: Английский

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Self‐Assembled Monolayers of Bi‐Functionalized Porphyrins: A Novel Class of Hole‐Layer‐Coordinating Perovskites and Indium Tin Oxide in Inverted Solar Cells

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(40)

Опубликована: Авг. 19, 2023

Self-assembled monolayers (SAMs) offer the advantage of facile interfacial modification, leading to significant improvements in device performance. In this study, we report design and synthesis a new series carboxylic acid-functionalized porphyrin derivatives, namely AC-1, AC-3, AC-5, present, for first time, strategy exploit large π-moiety porphyrins as backbone interfacing indium tin oxide (ITO) electrode perovskite active layer an inverted solar cell (PSC) configuration. The electron-rich nature facilitates hole transfer formation SAMs, resulting dense surface that minimizes defects. Comprehensive spectroscopic dynamic studies demonstrate double-anchored AC-3 AC-5 enhance SAMs on ITO, passivate layer, function conduits facilitate transfer, thus significantly boosting performance PSCs. champion PSC employing SAM achieves impressive efficiency 23.19 % with high fill factor 84.05 %. This work presents novel molecular engineering functionalizing tune energy levels, dipoles, packing orientations achieve stable efficient Importantly, our comprehensive investigation has unraveled associated mechanisms, offering valuable insights future advancements

Язык: Английский

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