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题目:
Small Molecule-Polymer Composite Hole-Transporting Layer for Highly Efficient and Stable Perovskite Solar Cells
 
 
作者:
Jin-Miao Wang,1 Zhao-Kui Wang,1,* Meng Li,1 Ke-Hao Hu,1 Ying-Guo Yang,2 Yun Hu,1 Xing-Yu Gao,2 and Liang-Sheng Liao1
 
 
单位:
1Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, China
2Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai201204, China
 
 
摘要:
Effective and stable hole-transporting materials (HTMs) are necessary for obtaining excellent planar perovskite solar cells (PSCs). Herein, we reported a solution-processed composite HTM consisting of a polymer ploy(3,4-ethylene-dioxythiophene):ploystyrenesulfonate (PEDOT:PSS) and a small-molecule copper phthalocyanine-3,4’,4’’,4’’’ -tetrasulfonated acid tetrasodium salt (TS-CuPc) with optimized doping ratios. The composite HTM is crucial for not only enhancing the hole transport and extractionbut also improving the perovskite crystallization. In addition, the composite HTM can weaken the indium tin oxideerosion by reducing the acidity and increasing the dispersibility of the PEDOT:PSS aqueous dispersion via incorporating suitable TS-CuPc. Consequently, a highly efficient device was fabricated with a power conversion efficiency (PCE) of 17.29%. It’s short-circuit current (Jsc) is 22.23 mA/cm2, and its open-circuit voltage (VOC) is 1.01 V. Meanwhile, it exhibited a higher fill factor (FF) of 77% and improved cell stability. The developed composite HTM provides a good potential anode interfacial layer in fabricating outstanding PSCs.
 
 
影响因子:
7.145
 
 
分区情况:
一区
 
 
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