Achieving sustainability of greenhouses by integrating stable semi-transparent organic photovoltaics
Achieving sustainability of greenhouses by integrating stable semi-transparent organic photovoltaics
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DOI：
10.1038/s41893-023-01071-2
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发表时间：
2023-03
影响因子：
27.6
通讯作者：
Yepin Zhao;Zongqi Li;C. Deger;Minhuan Wang;M. Peric;Yanfeng Yin;Dong Meng;Wenxin Yang;Xinyao Wang
中科院分区：
文献类型：
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作者：
Yepin Zhao;Zongqi Li;C. Deger;Minhuan Wang;M. Peric;Yanfeng Yin;Dong Meng;Wenxin Yang;Xinyao Wang
半透明有机光伏（OPV）是一种新兴的太阳能收集技术，具有广阔的应用前景，例如环保温室的屋顶能源供应。然而，OPV 的运行稳定性较差，对其不间断服务设施的可行性提出了挑战。在这里，我们报告了一种用于半透明 OPV 的还原性夹层结构，该结构可提高 OPV 在连续太阳辐射下的运行稳定性。中间层有效地抑制电子传输层在阳光下产生自由基，并防止有机光敏层在操作过程中的结构分解。作为载流子复合位点的缺陷被还原分子的供电子官能团抵消，从而提高了光伏性能。半透明 OPV 的功率转换效率为 13.5%，平均可见光透射率为 21.5%，在连续照明下具有显着的运行稳定性（1,008 小时后保留率为 84.8%）。温室结果表明，半透明 OPV 屋顶有利于作物的成活率和生长，这表明我们的方法在应对粮食和能源挑战方面的重要性。
Semi-transparent organic photovoltaics (OPVs) are an emerging solar-energy-harvesting technology with promising applications, such as rooftop energy supplies for environmentally friendly greenhouses. However, the poor operational stability of OPVs poses challenges to their feasibility as incessantly serving facilities. Here we report a reductive interlayer structure for semi-transparent OPVs that improves the operational stability of OPVs under continuous solar radiation. The interlayer effectively suppresses the generation of radicals from the electron transport layer under sunlight and prevents the structural decomposition of the organic photoactive layer during operation. The defects that serve as the charge carrier recombination sites are nullified by the electron-donating functional groups of the reduced molecules, which improves photovoltaic performance. The semi-transparent OPVs demonstrate a power conversion efficiency of 13.5% and an average visible transmittance of 21.5%, with remarkable operational stability (84.8% retention after 1,008 h) under continuous illumination. Greenhouse results show that the semi-transparent OPV roof benefits the survival rate and growth of the crops, indicating the importance of our approach in addressing food and energy challenges.