Enhanced moisture and thermal stability of transparent electrodes via crosslinking for large-area flexible organic photovoltaic modules

IF 32.4 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Energy & Environmental Science Pub Date : 2025-01-20 DOI:10.1039/d4ee05154h

Xin Lu, Yang Liu, Ruiyu Tian, Xinjie Liu, Yuanyuan Wang, Yinhua Zhou

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引用次数: 0

Abstract

Moisture and thermal stability of flexible transparent electrodes are important for fabricating efficient large-area flexible organic photovoltaic (OPV) modules. Recently, silver nanowires (AgNWs) embedded polyvinyl alcohol (PVA) has been fabricated with excellent optoelectronic properties, mechanical flexibility and surface smoothness for efficient large-area flexible OPV modules. However, the PVA is vulnerable to moisture and heat that cause narrow processing window for large-area flexible modules. In this work, we embed AgNWs into a crosslinked PVA matrix (denoted as AgNWs-em-cPVA) that shows substantially enhanced thermal and moisture thermal stability. The AgNWs-em-cPVA could withstand temperature up to 200 °C and the moisture adsorption is as low as 1.12 ± 0.19% at a relative humidity (R.H.) of 60% and a temperature of 25 °C for 168 h. The flexible large-area OPV module achieved an efficiency of 14.78% (active area: 52.3 cm2), which is the highest for flexible large-area OPV modules on non-ITO electrodes. The flexible large-area OPV modules maintained 92.76 ± 2.5% of their initial efficiencies after continuous AM1.5 illumination with UV filter for 1,008 hours.

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通过交联提高大面积柔性有机光伏组件透明电极的湿热稳定性

柔性透明电极的热湿稳定性对高效制造大面积柔性有机光伏组件至关重要。近年来，聚乙烯醇（PVA）嵌入银纳米线（AgNWs）具有优异的光电性能、机械柔韧性和表面光洁度，可用于高效的大面积柔性OPV模块。然而，PVA易受潮和受热，导致大面积柔性组件的加工窗口狭窄。在这项工作中，我们将AgNWs嵌入到交联的PVA矩阵中（表示为AgNWs-em- cpva），该矩阵显示出显着增强的热稳定性和湿热稳定性。AgNWs-em-cPVA可承受高达200℃的高温，在相对湿度（rh）为60%、温度为25℃时，吸湿率低至1.12±0.19%。该柔性大面积OPV组件的效率为14.78%（有效面积为52.3 cm2），为非ito电极柔性大面积OPV组件的最高效率。经过UV滤光片AM1.5连续照射1008小时后，柔性大面积OPV模块的效率保持在初始效率的92.76±2.5%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Energy & Environmental Science 化学-工程：化工

CiteScore

50.50

自引率

2.20%

发文量

349

审稿时长

2.2 months

期刊介绍： Energy & Environmental Science, a peer-reviewed scientific journal, publishes original research and review articles covering interdisciplinary topics in the (bio)chemical and (bio)physical sciences, as well as chemical engineering disciplines. Published monthly by the Royal Society of Chemistry (RSC), a not-for-profit publisher, Energy & Environmental Science is recognized as a leading journal. It boasts an impressive impact factor of 8.500 as of 2009, ranking 8th among 140 journals in the category "Chemistry, Multidisciplinary," second among 71 journals in "Energy & Fuels," second among 128 journals in "Engineering, Chemical," and first among 181 scientific journals in "Environmental Sciences." Energy & Environmental Science publishes various types of articles, including Research Papers (original scientific work), Review Articles, Perspectives, and Minireviews (feature review-type articles of broad interest), Communications (original scientific work of an urgent nature), Opinions (personal, often speculative viewpoints or hypotheses on current topics), and Analysis Articles (in-depth examination of energy-related issues).