Stability, encapsulation and large-area fabrication of organic photovoltaics

Song, Sanming; Lu, Jiaorong; Ye, Weiyu; Zhang, Bei; Li, Xuan; Xing, Guichuan; Zhang, Shiming

doi:10.1007/s11426-020-1021-x

Cited by 12 publications

(8 citation statements)

References 152 publications

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“…18,19 In this context, the commercial demands on the cost effectiveness and stability should be the important concerns. 20,21 Although the majority of OSCs are fabricated in an inert atmosphere, for example, in a N 2 glovebox, especially for the state-of-the-art OSCs, high performance OSCs processed under ambient conditions should be the final goal because of advantages such as convenient manufacturing, lower equipment investment, and higher compatibility with a large-area module. So far, printed OSCs via slot-die, 22,23 doctor blade, 24,25 and spreading 26 techniques have been conducted in air.…”

Section: Introductionmentioning

confidence: 99%

Siloxane-induced robust photoactive materials with high humidity tolerance for ambient processing of organic solar cells

Liu

Yuan

Jiang

et al. 2023

Energy Environ. Sci.

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Section: Introductionmentioning

confidence: 99%

Siloxane-induced robust photoactive materials with high humidity tolerance for ambient processing of organic solar cells

Liu

Yuan

Jiang

et al. 2023

Energy Environ. Sci.

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“…[1,12,13] However, these aspects are at least as important for a successful commercialization of the technology. [13][14][15][16][17][18][19] Furthermore, taking full advantage of the technology involves manufacturing of semitransparent devices.…”

Section: Introductionmentioning

confidence: 99%

Fully Printed and Industrially Scalable Semitransparent Organic Photovoltaic Modules: Navigating through Material and Processing Constraints

Wachsmuth,

Distler,

Liu

et al. 2023

Solar RRL

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While the power conversion efficiency (PCE) of organic photovoltaics (OPV) on small‐area lab cells has rapidly increased during the last few years, the performance on module level and the availability of OPV modules on the market is still limited, primarily due to specific constraints imposed by the industrial production process. This work deals with the upscaling process of latest‐generation OPV from small‐area lab cells to fully solution‐processed modules, which are compatible to industrial roll‐to‐roll (R2R) printing. We demonstrate this transfer step by step from material selection and process optimization for every single layer of the stack (photoactive layer, charge transporting layers, and solution‐processed top electrode) – including long‐term stability investigations (thermal and light) – to scaling up the device area by a factor of >100. Thus, a semitransparent OPV module with 10.8 % PCE on 10.2 cm² active area is achieved, which is among the highest performances for semitransparent, fully solution‐processed OPV modules. The individual developments all meet the requirements for industrial R2R printing (green solvents, processing in air, annealing ≤ 140 °C etc.), which ensures that both the optimized layer stack and the fabrication process are fully scalable and easily transferable to large‐scale production.This article is protected by copyright. All rights reserved.

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“…As a promising next-generation photovoltaic technology, organic solar cells (OSCs), with bulk-heterojunction (BHJ) structure of p -type conjugated polymer donor (D) and n -type electron acceptor (A), have drawn tremendous attention due to their unique advantages such as lightweight, low cost, mechanical flexibility, and solution processability. − Benefiting from the combination of rapid development of active layer and interface materials, − device engineering, − and BHJ morphology regulation, − especially the emergence of the narrow bandgap A-DA’D-A type small molecule acceptors (SMAs), the power conversion efficiency (PCE) of the state-of-the-art OSCs has reached over 19%. − …”

Section: Introductionmentioning

confidence: 99%

Alkoxy Side-Chain Engineering of Quinoxaline-Based Small Molecular Acceptors Enables High-Performance Organic Solar Cells

Cao,

Zhang,

Yang

et al. 2023

ACS Appl. Energy Mater.

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Alkoxy side-chain engineering is an effective strategy for constructing efficient organic photovoltaic materials. Here, we develop three A-DA'D-A type small molecule acceptors (SMAs) with different alkoxy chains substituted on quinoxaline (Qx) central cores, named BQO-C2, BQO-C4, and BQO-C6. The different lengths of alkoxy chains on the Qx core exhibit critical effects on the physicochemical properties, active layer morphology, and photovoltaic properties of resultant SMAs. BQO-C2 with shorter alkoxy chains demonstrates down-shifted energy levels, more planar molecular configuration, and stronger crystallinity compared to its two counterparts. Benefiting from the preferred face-on molecular packing orientation and better active layer morphology, the PBDB-T:BQO-C2-based device shows more efficient exciton dissociation, higher and more balanced charge carrier mobility, suppressed recombination, and thus a much higher power conversion efficiency (PCE) of 14.65% than BQO-C4-(PCE = 8.93%) and BQO-C6-based (PCE = 8.45%) devices. This work reveals the structure−performance relationship of alkoxy chain-substituted Qx-based SMAs, which provides important guidelines for the further design of high-performance active layer materials.

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Stability, encapsulation and large-area fabrication of organic photovoltaics

Cited by 12 publications

References 152 publications

Siloxane-induced robust photoactive materials with high humidity tolerance for ambient processing of organic solar cells

Siloxane-induced robust photoactive materials with high humidity tolerance for ambient processing of organic solar cells

Fully Printed and Industrially Scalable Semitransparent Organic Photovoltaic Modules: Navigating through Material and Processing Constraints

Alkoxy Side-Chain Engineering of Quinoxaline-Based Small Molecular Acceptors Enables High-Performance Organic Solar Cells

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