A unique quaternary iodide salt of thieno-imidazole, AI110, is designed, prepared and tested on an inverted (p-i-n) architecture perovskite solar cell (PSC) as a dopant-free hole transport material (HTM). The opto-electronic and power conversion properties of this novel aryl salt HTM are well characterized. The inverted PSC based on AI110 without any dopants and additional interlayers using the simplest device structure affords the best efficiency of 14.90%, which is much higher than those of the most widely used HTMs, Spiro-OMeTAD (11.84%) and PEDOT:PSS (12.55%). The superior performance of the aryl salt AI110 HTM is due to its significant capabilities of film formation, charge extraction, and hole mobilities which result in reducing current loses and charge recombination and thus increasing power conversion.

噻吩-咪唑独特的季碘化物盐AI110在无针孔结构钙钛矿型太阳能电池（PSC）上设计，制备和测试，作为无掺杂空穴传输材料（HTM）。这种新型芳基盐HTM的光电和功率转换特性已得到很好的表征。使用最简单的器件结构，基于AI110的无任何掺杂剂和附加中间层的倒装PSC，可提供14.90％的最佳效率，这比最广泛使用的HTM，Spiro-OMeTAD（11.84％）和PEDOT：PSS（ 12.55％）。芳基盐AI110 HTM的卓越性能归因于其显着的成膜，电荷提取和空穴迁移能力，从而减少了电流损耗和电荷重组，从而提高了功率转换率。