Titanylphthalocyanine as hole transporting material for perovskite solar cells

作     者：Mengna Sun Shirong Wang Yin Xiao Zhihao Song Xianggao Li 

作者机构：School of Chemical Engineering and TechnologyTianjin University Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2015年第24卷第6期

页      面：756-761页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：supported by the National Nature Science Foundation of China (NO.21206110) Tianjin Science and Technology Support Plan Key Projects (NO.13ZCZDGX00900) 

主　　题：Perovskite Solar cell Titanylphthalocyanine Hole transporting material Power conversion efficiency 

摘      要：Titanylphthalocyanine （TiOPc） as hole transporting material （HTM） was successfully synthesized by a simple process with low cost. Perovskite solar cells using the TiOPc as HTM were fabricated and characterized. TiOPc as HTM plays an important role in increasing the power conversion efficiency （PCE） by minimizing recombi- nation losses at the perovskite/Au interface because TiOPc as HTM can extract photogenerated holes from the perovskite and then transport quickly these charges to the back metal electrode. In the research, the β-TiOPc gives a higher PCE than α-TiOPc for the devices due to sufficient transfer dynamics, The β-TiOPc was applied in perovskite solar cells without clopping to afford an impressive PCE of 5.05% under AM 1.5G illumination at the thickness of 40 nm which is competitive with spiro-OMeTAD at the same condition. The present work suggests a guideline for optimizing the photovoltaic properties ofperovskite solar cells using the TiOPc as the HTM.