All slot-die coated organic solar cells using an amine processed cathode interlayer based upon an amino acid functionalised perylene bisimide
All slot-die coated organic solar cells using an amine processed cathode interlayer based upon an amino acid functionalised perylene bisimide
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所有槽模涂层有机太阳能电池均使用基于氨基酸官能化苝双酰亚胺的胺处理阴极夹层
DOI：
10.1039/d3lf00183k
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发表时间：
2024
期刊：
影响因子：
--
通讯作者：
Ginesi R
中科院分区：
文献类型：
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作者：
Ginesi R
绿色可溶液加工有机光伏电池（OPV）具有提供低成本、清洁且易于获取的电力的潜力。然而，很少有有机材料能够与使用可扩展涂层方法的无卤溶剂形成多层薄膜兼容。目前的研究重点是使用氧化锡 (SnO2) 的设备。然而，SnO2 具有表面陷阱，需要钝化层才能最大限度地提高性能。因此，开发能够钝化金属氧化物以实现最大器件性能的缺电子有机材料至关重要。因此，使这些材料和薄膜具有耐溶剂性是一个主要目标。在此，我们表明，用酪氨酸附加苝双酰亚胺（PBI-Y）改性的 SnO2 可以用作使用胺基油墨配方的 PM6/Y6C12 基有机光伏电池中的电子传输中间层。 SnO2/PBI-Y 薄膜通过光学吸收光谱和原子力显微镜进行表征，并表现出耐溶剂性。电特性表明 PBI 改性提高了 SnO2 的电导率。旋涂器件的功率转换效率 (PCE) 为 13%，在所有空气处理 SnO2 基 OPV 中名列前茅。全狭缝模具涂层器件的 PCE 达到 10%，展示了放大的潜力。这项工作开辟了一种可行且可持续的方法，使用更环保的加工条件来开发有机光伏器件。
Green solution-processable organic photovoltaic cells (OPVs) have the potential to provide low-cost, clean, and accessible electricity. However, there are few organic materials that are compatible with multi-layer film formatting from halogen-free solvents using scalable coating methods. Current research focuses on devices using tin oxide (SnO2). However, SnO2 has surface traps and requires a passivating layer to maximise performance. Therefore, it is crucial to develop electron deficient organic materials that can passivate metal oxides to achieve maximum device performance. Rendering these materials and films solvent resistance is thus a major goal. Herein, we show that SnO2 modified with a tyrosine appended perylene bisimide (PBI-Y) can be applied as an electron transport interlayer in PM6/Y6C12-based organic photovoltaic cells using an amine-based ink formulation. The SnO2/PBI-Y films are characterised by optical absorption spectroscopy and atomic force microscopy and exhibit solvent resistance. The electrical characterisation shows that a PBI modification improves the conductivity of the SnO2. Spin-coated devices show a power conversion efficiency (PCE) of 13%, among the best for all air-processed SnO2-based OPVs. Fully slot-die coated devices achieve PCEs of 10%, demonstrating the potential for scale-up. This work opens a viable and sustainable method to develop organic photovoltaic devices using more environmentally friendly processing conditions.