Facile synthesis of a dopant-free hole transporting material with a phenothiazine core for planar perovskite solar cells
作者:Xiaoyuan Liu、Xiao Tan、Qian Chen、Haiquan Shan、Changmei Liu、Jiaju Xu、Zhi-Kuan Chen、Wei Huang、Zong-Xiang Xu
DOI:10.1039/c7ra10677g
日期:——
PTZ-TPA was incorporated into a CH3NH3PbI3 perovskite solar cell as a dopant-free hole transporting material (HTM), a short circuit photocurrent density of 21.5 mA cm−2, an open circuit voltage of 0.982 V, and a fill factor of 0.679 were obtained, giving rise to an overall power conversion efficiency of 14.3%, which is comparable to the power conversion efficiency obtained using the current state-of-the-art
一种新型的富电子小分子4,4'-(10-(4-辛基苯基)-10 H-吩噻嗪-3,7-二基)双(N,N-(4-甲氧基苯基)苯胺)(PTZ- TPA)是通过Suzuki-Miyaura交叉偶联反应合成的,其中吩噻嗪为核心,带有三苯胺侧基。当将PTZ-TPA作为无掺杂空穴传输材料(HTM)并入CH 3 NH 3 PbI 3钙钛矿太阳能电池中时,短路光电流密度为21.5 mA cm -2,获得了0.982 V的开路电压和0.679的填充系数,因此总功率转换效率为14.3%,可与使用当前最新HTM所获得的功率转换效率相媲美。 2,20,7,70-四(N,N'-二-对甲氧基苯胺)-9,90-螺双芴与掺杂剂(Spiro-MeOTAD,功率转换效率为17.1%)。因此,PTZ-TPA是一种很有前途的HTM,由于其可比的性能和更简单的合成路线,它有可能取代昂贵的Spiro-MeOTAD。与Spiro-MeO