Triphenylamine substituted copper and zinc phthalocyanines as alternative hole-transporting materials for solution-processed perovskite solar cells,Dalton Transactions

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Triphenylamine substituted copper and zinc phthalocyanines as alternative hole-transporting materials for solution-processed perovskite solar cells
Dalton Transactions ( IF 3.5 ) Pub Date : 2022-06-08 , DOI: 10.1039/d2dt00068g
Gizem Gümüşgöz Çelik ₁ , Ayşe Nur Şahin ₂ , Ferruh Lafzi ₃ , Nurullah Saracoglu ₃ , Ahmet Altındal ₂ , Ayşe Gül Gürek ₁ , Devrim Atilla ₁

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In the present study, new peripheral substituted Zn(II) and Cu(II) phthalocyanine derivatives (p-ZnPc and p-CuPc) bearing bulky aromatic triphenylamine groups were synthesized as alternative hole-transporting materials (HTMs). The structures of the new phthalocyanine derivatives (p-ZnPc and p-CuPc) were illuminated by various spectroscopic techniques such as mass spectrometry and ¹H, and ¹³C-NMR. After structural analysis, their photophysical properties in solution and the solid phase were examined by UV-Vis absorption and fluorescence spectroscopy. Using p-ZnPc and p-CuPc as HTMs, highly stable perovskite-based solar cells with the structure of FTO/SnO₂/perovskite/p-ZnPc and p-CuPc/Ag have been developed and characterized. It was observed that our devices with p-ZnPc as the HTM maintain over 93% of the initial performance for more than 960 h under atmospheric conditions (22–27 °C) with 35–45% relative humidity. In addition, some strategies such as using various methylammonium iodide (MAI) and lead iodide (PbI₂) blend ratios between 1 : 0.4 and 1 : 1.8 were employed to test the effect of the blend ratios on the long term stability of the perovskite-based solar cells. Our findings demonstrated that the spin-coated p-ZnPc based HTM demonstrated competitive power conversion efficiency and exhibited superior stability without encapsulation compared to commonly used HTMs.

中文翻译：

三苯胺取代铜和锌酞菁作为溶液处理钙钛矿太阳能电池的替代空穴传输材料

在本研究中，合成了新的外围取代的 Zn( II ) 和 Cu( II ) 酞菁衍生物（p-ZnPc和p-CuPc），它们带有大的芳香族三苯胺基团，作为替代空穴传输材料 (HTM)。新的酞菁衍生物（p-ZnPc和p-CuPc）的结构通过质谱和¹ H 和¹³ C-NMR 等各种光谱技术进行了阐明。结构分析后，通过紫外-可见吸收和荧光光谱检测了它们在溶液和固相中的光物理性质。使用p-ZnPc和p-CuPc_{作为HTM，具有FTO/SnO 2} /钙钛矿/ p-ZnPc和p-CuPc /Ag结构的高度稳定的钙钛矿基太阳能电池已被开发和表征。据观察，我们的器件以p-ZnPc作为 HTM 在大气条件（22-27°C）和 35-45% 相对湿度下保持超过 93% 的初始性能超过 960 小时。此外，还采用了一些策略，例如使用 1:0.4 和 1:1.8 之间的各种甲基碘化铵 (MAI) 和碘化铅 (PbI ₂ ) 混合比来测试混合比对钙钛矿长期稳定性的影响-基于太阳能电池。我们的研究结果表明，旋涂的p-ZnPc与常用的 HTM 相比，基于 HTM 的 HTM 展示了具有竞争力的功率转换效率，并且在没有封装的情况下表现出卓越的稳定性。

更新日期：2022-06-08

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