Tailoring Multifunctional Self‐Assembled Hole Transporting Molecules for Highly Efficient and Stable Inverted Perovskite Solar Cells

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(10)

Published: Jan. 29, 2023

Abstract The self‐assembled hole transporting molecules (SAHTMs) bearing anchoring groups have been established as the layers (HTLs) for highly efficient p–i–n perovskite solar cells (PSCs), yet their stability and engineering at molecular level remain challenging. A topological design of anisotropic aligned SAHTM‐based HTLs operationally stable PSCs that exhibit exceptional solar‐to‐electric power conversion efficiencies (PCEs) is demonstrated. judiciously designed multifunctional comprise donor–acceptor subunit phosphonic acid group anchoring, realizing face‐on π‐stacking parallel to transparent conductive oxide substrate. high affinity SAHTMs multi‐crystalline thin film benefits passivating buried interface, strengthening interfacial contact while facilitating transfer. Consequently, PSC devices are obtained with a champion PCE 23.24% outstanding operational toward various environmental factors including long‐term full sunlight soaking evaluated temperatures. Perovskite modules efficiency approaching 20% also fabricated an active device area above 17 cm 2 .

Language: Английский

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A Universal Strategy of Perovskite Ink ‐ Substrate Interaction to Overcome the Poor Wettability of a Self‐Assembled Monolayer for Reproducible Perovskite Solar Cells

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(47)

Published: Sept. 4, 2023

Abstract Perovskite solar cells employing [4‐(3,6‐dimethyl‐9H‐carbazol‐9‐yl)butyl]phosphonic acid (Me‐4PACz) self‐assembled monolayer as the hole transport layer have been reported to demonstrate a high device efficiency. However, poor perovskite wetting on Me‐4PACz caused by ink interaction with underlying presents significant challenges for fabricating efficient devices. A triple co‐solvent system comprising dimethylformamide (DMF), dimethyl sulfoxide (DMSO), and N ‐methyl‐2‐pyrrolidone (NMP) is employed improve ‐ coated substrate obtain uniform layer. In comparison DMF‐ DMSO‐based inks, inclusion of NMP shows considerably higher binding energies revealed density‐functional theory calculations. With optimized ratio, devices deliver power conversion efficiencies >20%, 19.5%, ≈18.5% active areas 0.16, 0.72, 1.08 cm 2 , respectively. Importantly, this ink–substrate approach universal helps in obtaining photovoltaic performance other compositions such MAPbI 3 FA 1− x MA PbI 3– y Br MA‐free Cs .

Language: Английский

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Methods for Passivating Defects of Perovskite for Inverted Perovskite Solar Cells and Modules

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(35)

Published: June 27, 2024

Abstract Inverted perovskite solar cells (PSCs) have attracted considerable attention due to their distinct advantages, including minimal hysteresis, cost‐effectiveness, and suitability for tandem applications. Nevertheless, the solution processing low formation energy of perovskites inevitably lead numerous defects formed at both bulk interfaces layer. These can act as non‐radiative recombination centers, significantly impeding carrier transport posing a substantial obstacle stability further enhancing power conversion efficiency (PCE). This review delves into detailed discussion nature origin characterization techniques employed defect identification. Furthermore, it systematically summarizes methods detection approaches passivating interface within film in inverted PSCs. Finally, this offers perspective on employing upscaling passivation engineering modules. It is hoped provides insights PSCs

Language: Английский

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Recent Advances of Inverted Perovskite Solar Cells

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(4), P. 1487 - 1506

Published: March 12, 2024

Inverted perovskite solar cells (PSCs) with p-i-n structure have recently attracted widespread attention owing to their fast-growing power conversion efficiency. In this Review, we focus on the progress in materials that contribute improved efficiency of inverted PSCs, including hole transport self-assembled monolayers as highlight, electron materials, and interface modification between charge layers for passivating defects. Then, discuss recent advances perovskites, optimization bandgap, interfacial band engineering, development film processing. Finally, point out challenges future perspectives further improving stability PSCs hope offering suggestions tackle hindrance commercial applications.

Language: Английский

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The Promise and Challenges of Inverted Perovskite Solar Cells

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(19), P. 10623 - 10700

Published: Aug. 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.

Language: Английский

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