Fluorescence Turn-on Detection of Perfluorooctanoic Acid (PFOA) by Perylene Diimide-Based Metal–Organic Framework

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(25), P. 32344 - 32356

Published: May 8, 2024

A novel, water-stable, perylene diimide (PDI) based metal-organic framework (MOF), namely,

Language: Английский

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All-inorganic halide perovskites for air-processed “n–i–p” monolithic perovskite/organic hybrid tandem solar cells exceeding 23% efficiency

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 17(3), P. 1046 - 1060

Published: Nov. 24, 2023

We are excited to report dynamic hot-air assisted ambient conditions processed metal ion-doped γ-CsPb(I 1− x Br ) 3 ( E g = 1.87 eV) wide bandgap in combination with a ternary bulk-heterojunction 1.36 narrow based monolithic hybrid tandem solar cells crossing 23% efficiency.

Language: Английский

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Understanding photochemical degradation mechanisms in photoactive layer materials for organic solar cells

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(14), P. 7426 - 7454

Published: Jan. 1, 2024

Over the past decades, field of organic solar cells (OSCs) has witnessed a significant evolution in materials chemistry, which resulted remarkable enhancement device performance, achieving efficiencies over 19%. The photoactive layer OSCs play crucial role light absorption, charge generation, transport and stability. To facilitate scale-up OSCs, it is imperative to address photostability these electron acceptor donor materials, as their photochemical degradation process remains challenge during photo-to-electric conversion. In this review, we present an overview development emphasizing aspects chemical stability behavior that are linked OSCs. Throughout each section, highlight pathways for link degradation. We also discuss existing interdisciplinary challenges obstacles impede photostable materials. Finally, offer insights into strategies aimed at enhancing future directions developing photo-active layers, facilitating commercialization

Language: Английский

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Increasing Photostability of Inverted Nonfullerene Organic Solar Cells by Using Fullerene Derivative Additives

ACS Applied Materials & Interfaces, Journal Year: 2021, Volume and Issue: 13(16), P. 19072 - 19084

Published: April 16, 2021

Organic solar cells (OSCs) recently achieved efficiencies of over 18% and are well on their way to practical applications, but still considerable stability issues need be overcome. One major problem emerges from the electron transport material zinc oxide (ZnO), which is mainly used in inverted device architecture decomposes many high-performance nonfullerene acceptors due its photocatalytic activity. In this work, we add three different fullerene derivatives—PC71BM, ICMA, BisPCBM—to an binary PBDB-TF:IT-4F system order suppress degradation IT-4F ZnO via radical scavenging abilities fullerenes. We demonstrate that addition 5% not only increases performance also significantly improves lifetime under UV illumination inert atmosphere. While devices lose 20% initial efficiency after 3 h, time increased fivefold for most promising ternary with ICMA. attribute improvement a reduced decomposition system, results decreased recombination. propose added fullerenes protect by acting as sacrificial reagent, thereby suppressing trap state formation. Furthermore, show protective effect ICMA transferable two other systems PBDB-TF:BTP-4F PTB7-Th:IT-4F. Importantly, can increase air PBDB-TF:IT-4F. This work demonstrates derivatives straightforward strategy improve OSCs.

Language: Английский

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Efficient and stable inverted structure organic solar cells utilizing surface-modified SnO2 as the electron transport layer

Nano Energy, Journal Year: 2023, Volume and Issue: 118, P. 109032 - 109032

Published: Oct. 27, 2023

Language: Английский

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New Ternary Blend Strategy Based on a Vertically Self‐Assembled Passivation Layer Enabling Efficient and Photostable Inverted Organic Solar Cells

Advanced Science, Journal Year: 2023, Volume and Issue: 10(17)

Published: April 25, 2023

Herein, a new ternary strategy to fabricate efficient and photostable inverted organic photovoltaics (OPVs) is introduced by combining bulk heterojunction (BHJ) blend fullerene self-assembled monolayer (C

Language: Английский

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Revealing Photodegradation Pathways of Organic Solar Cells by Spectrally Resolved Accelerated Lifetime Analysis

Advanced Energy Materials, Journal Year: 2022, Volume and Issue: 13(2)

Published: Nov. 28, 2022

Abstract A method for organic solar cell (OSC) stability testing is presented that aims to provide more unique insight into the causes of degradation patterns OSCs. The involves using monochromatic light at high irradiation doses accelerate isolated mechanisms while monitoring device with a series in‐situ steady‐state and transient electrical measurements. experimental results are accompanied by drift‐diffusion simulations localize pathways. PM6:Y6‐based OSCs tested, which known show rather broad range lifetimes as function architecture, material batches, or conditions. experiments reveal mechanism an increased trap‐state density inside PM6:Y6 layer. suggest these states formed around interface between electron transport Furthermore, surprisingly dominant impact illuminating wavelength on pattern evidenced. Lastly, rate devices scales linearly intensity, making intensity spectrally selective most promising way faster development stable

Language: Английский

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Qualified interlayer modifier for organic solar cells with optimized interfacial topography and boosted efficiency based on biomass-derived acid

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 450, P. 138169 - 138169

Published: July 19, 2022

Language: Английский

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Calixarenes enabling well-adjusted organic-inorganic interface for inverted organic solar cells with 18.25% efficiency and multifold improved photostability under max power point tracking

Science China Chemistry, Journal Year: 2022, Volume and Issue: 66(1), P. 195 - 201

Published: Nov. 18, 2022

Language: Английский

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Ambient‐Air‐Processed, Solution‐Based Organic Photovoltaics and Photodetectors

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

Published: Jan. 29, 2025

Abstract Organic photovoltaics (OPVs) and organic photodetectors (OPDs), which use conjugated polymers molecules as photoactive materials, hold significant promise for energy harvesting sensing applications due to their customizable optoelectronic properties, potential mechanical flexibility, compatibility with low‐cost, high‐throughput manufacturing. However, OPV OPD research date has typically relied on device fabrication in controlled environments (e.g., glove boxes filled inert gases) vacuum‐deposited (rather than solution‐processed) electrodes, limiting scalability increasing manufacturing complexity cost. This review explores these challenges by surveying the development of ambient‐air‐processed, solution‐based (APSB) OPVs OPDs, not only solution‐processed electrodes but are also entirely fabricated under ambient conditions. Various solution processing techniques, performance APSB OPDs comprehensively examined, offering insights future advance technologies toward ultra‐low‐cost optoelectronics harvesting.

Language: Английский

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