Name: PD2DBA3. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: PD2DBA3, is researched, Molecular C51H42O3Pd2, CAS is 60748-47-2, about A Trifluoroethoxyl Functionalized Spiro-Based Hole-Transporting Material for Highly Efficient and Stable Perovskite Solar Cells. Author is Zhang, Zheng; Yuan, Ligang; Li, Bin; Luo, Huiming; Wang, Sijing; Li, Zhijun; Xing, Yifan; Wang, Jiarong; Dong, Peng; Guo, Kunpeng; Wang, Zhongqiang; Yan, Keyou.
It is crucial to finely optimize the properties of hole transport materials (HTMs) to improve the performance and stability of perovskite solar cells (PSCs). Herein, a new spiro-based HTM (Spiro-4TFETAD) is developed by replacement of partial methoxy groups in Spiro-OMeTAD with trifluoroethoxy substituents. Spiro-4TFETAD has lower HOMO level, higher thermal stability (Tg = 140 °C), hole mobility (2.04 x 10-4 cm2 V-1 s-1), and better hydrophobicity with respect to Spiro-OMeTAD. The PSCs using Spiro-4TFETAD achieve a power conversion efficiency of 21.11% and excellent humidity resistance. It maintains an average 83% of their initial power conversion efficiency values even in high relative humidity of 60% without encapsulation and 82% of its initial performance after 100 h continuous illumination at the maximum power point. The superior performance underscores the promising potential of the trifluoroethoxyl mol. design in preparing new HTMs toward highly efficient and stable PSCs.
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Reference:
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method