金属复合物作为p型剂为基础的有机螺旋OMeTAD孔输送材料,用于自由Li-TFSI矿太阳能电池
Mohammed Elawad1, Abdalla A Elbashir2, Muhammad Sajid3,4
1Department of Chemistry, Faculty of Science, Omdurman Islamic University, P.O. Box 382, Omdurman, Sudan.
The Journal of chemical physics
|January 29, 2024
概括
一种新型的复合物作为矿太阳能电池 (PSC) 中的spiro-OMeTAD的有效p型剂. 这种新的剂增强了导电性和稳定性,从而提高了设备性能,功率转换效率为16.39%.
科学领域:
- 材料科学 材料科学 材料科学
- 太阳能光伏发电是如何实现的
- 化学 化学 化学
背景情况:
- 二 (硫) 胺 (Li-TFSI) 是矿太阳能电池 (PSC) 的常见p-dopant,但它会对设备填充因子和短路电流产生负面影响.
- 现有的兴奋剂在提高PSC的整体性能和稳定性方面存在局限性.
研究的目的:
- 为了引入一种新的 (Mn) 复合物,[{Mn{Me-tpen}{ClO4) 2-) ]2+,作为spiro-OMeTAD的p型剂.
- 评估这种Mn复合物的有效性,作为PSC中的孔运输材料 (HTM).
- 提高PSC的导电性和长期稳定性.
主要方法:
- 将Mn复合体纳入spiro-OMeTAD作为PSC中的HTM层的辅助剂.
- 使用扫描电子显微镜,UV-Vis光谱,电流-电压 (IV) 测量,发生光子到电流效率 (IPCE),功率转换效率 (PCE) 和电化学阻抗光谱 (EIS) 的设备表征.
主要成果:
- 复合物促进了HTM中的孔载体生成,显著提高了其导电率98.13%.
- 紫外线-Vis光谱证实了添加剂后HTM的氧化.
- 用Mn复合物制造的设备表现出改善的材料性能和在潮湿环境 (RH ~30%) 中增强的长期稳定性.
结论:
- 复合物[{Mn{Me-tpen}{ClO4) 2-) ]2+是PSC中螺旋OMeTAD的有希望的p型剂,克服了传统剂如Li-TFSI的局限性.
- 开发的HTM表现出了16.39%的显著功率转换效率 (PCE),并改善了设备的稳定性.
- 这项研究提供了一种可行的策略,用于创建适合现实应用的高效和稳定的PSC.
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