Bilayer chlorophyll derivatives as efficient hole-transporting layers for perovskite solar cells
作者： Na Li , Chunxiang Dall’Agnese , Wenjie Zhao , Shengnan Duan , Gang Chen
DOI: 10.1039/C9QM00377K
关键词:
摘要: Two synthetic chlorophyll (Chl) derivatives named Zn-Chl and H2-Chl are examined as efficient hole-transporting layers (HTLs) for perovskite solar cells (PSCs) based on CH3NH3PbI3 (MAPbI3). The device structure here is ITO/SnO2/MAPbI3/Zn-Chl/H2-Chl/Ag, which employs Zn-Chl/H2-Chl the bilayer HTL. show different electronic absorptions, surface morphology, hole mobilities energy levels due to their structural differences. HTL realizes complementary performance of Chl in each layer. power conversion efficiency PSCs (Zn-Chl/H2-Chl) reaches 14.1% under standard AM1.5 illumination, higher than that with monolayer (11.9%) or (0.16%) only. also exhibits better stability. This first time has been used a PSCs. It provides promising method enhance Chl-based
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