Solution-processed MoO3:PEDOT:PSS hybrid hole transporting layer for inverted polymer solar cells

ACS Applied Materials & Interfaces
Yiling WangChang-Qi Ma

Abstract

Solution-processed organic-inorganic hybrids composing of MoO3 nanoparticles and PEDOT:PSS were developed for use in inverted organic solar cells as hole transporting layer (HTL). The hybrid MoO3:PEDOT:PSS inks were prepared by simply mixing PEDOT:PSS aqueous and MoO3 ethanol suspension together. A core-shell structure was proposed in the MoO3:PEDOT:PSS hybrid ink, where PEDOT chains act as the core and MoO3 nanoparticles connected with PSS chains act as the composite shell. The mixing with PEDOT:PSS suppressed the aggregation of MoO3 nanoparticles, which led to a smoother surface. In addition, since the hydrophilic PSS chains were passivated through preferentially connection with MoO3, the stronger adhesion between MoO3 nanoparticles and the photoactive layer improved the film forming ability of the MoO3:PEDOT:PSS hybrid ink. The MoO3:PEDOT:PSS hybrid HTL can therefore be feasibly deposited onto the hydrophobic photoactive polymer layer without any surface treatment. The use of the MoO3:PEDOT:PSS hybrid HTL resulted in the optimized P3HT:PC61BM- and PTB7:PC61BM-based inverted organic solar cells reaching highest power conversion efficiencies of 3.29% and 5.92%, respectively, which were comparable with that of the control devic...Continue Reading

References

Apr 15, 2011·Advanced Materials·Darren J LipomiZhenan Bao
Aug 13, 2011·ACS Applied Materials & Interfaces·Claudio GirottoBarry P Rand
Feb 14, 2012·ACS Applied Materials & Interfaces·Kirill ZilberbergThomas Riedl
Feb 7, 2013·Nature Communications·Jingbi YouYang Yang
Nov 28, 2013·Journal of the American Chemical Society·Weiwei LiRené A J Janssen

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Citations

Jan 12, 2016·Physical Chemistry Chemical Physics : PCCP·Leize ZhuQiuming Yu
Apr 19, 2016·Chemical Society Reviews·Kai WangXiong Gong
Feb 19, 2016·Chemical Society Reviews·Pei Cheng, Xiaowei Zhan
Nov 19, 2021·Chemical Reviews·Alberto D ScaccabarozziThomas D Anthopoulos

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