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首页> 外文期刊>Journal of Materials Chemistry, A. Materials for energy and sustainability >A review of organic small molecule-based hole-transporting materials for meso-structured organic-inorganic perovskite solar cells
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A review of organic small molecule-based hole-transporting materials for meso-structured organic-inorganic perovskite solar cells

机译：介孔结构有机-无机钙钛矿太阳能电池用有机小分子基空穴传输材料的综述

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摘要

This review summarizes the current designs and development of new types of organic small molecules as a hole-transporting material (HTM) in a meso-structured perovskite solar cell (PSC). The roles of each layer in the meso-structured perovskite device architecture are elaborated and the employment of new types of organic HTMs in the device is compared with the commercially available HTM spiro-OMeTAD in terms of the properties, device performance and stability. The studies found that nearly half of the new synthesized and pristine HTMs have comparable or better photovoltaic properties than those of doped spiro-OMeTAD. These HTMs have the characteristics of a fused planar core structure with extended pi-conjugated lengths and electron-donating functional groups, which are believed to contribute to their high intrinsic conductivity and help make them an alternative to spiro-OMeTAD as a better HTM in meso-structured PSCs. Some of the devices based on the new synthesized HTMs even have longer device lifetimes than their spiro-OMeTAD-based PSC counterparts. Moreover, studies found that the cost per gram (C-g) and cost-per-peak Watt (C-w) of synthesized HTMs can be reduced via minimizing the number of synthesis steps and by optimization of the starting materials in order to yield low-cost HTMs for meso-structured PSC applications.
机译：这篇综述总结了新型的有机小分子作为介孔结构钙钛矿太阳能电池（PSC）中的空穴传输材料（HTM）的设计和开发。详细阐述了介孔钙钛矿器件体系结构中每一层的作用，并将器件中新型有机HTM的使用与市售HTM spiro-OMeTAD进行了性能，器件性能和稳定性方面的比较。研究发现，将近一半的新合成和原始HTM具有比掺杂螺-OMeTAD相当或更好的光电性能。这些HTM具有融合的平面核结构的特征，具有延长的pi共轭长度和给电子官能团，据信有助于它们的高本征电导率，并有助于使其成为螺-OMeTAD的替代品，因为它是介孔中更好的HTM结构的PSC。与基于spiro-OMeTAD的PSC同类产品相比，基于新的合成HTM的某些设备甚至具有更长的设备寿命。此外，研究发现，通过最小化合成步骤的数量以及优化起始原料以生产低成本的HTM，可以降低合成HTM的每克成本（Cg）和每峰瓦数（Cw）。适用于中型结构的PSC应用。

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