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Highly efficient and stable inverted perovskite solar cell employing PEDOT:GO composite layer as a hole transport layer.


ABSTRACT: The beneficial use of a hole transport layer (HTL) as a substitution for poly(3,4-ethlyenedioxythiophene): polystyrene sulfonate (PEDOT:PSS) is regarded as one of the most important approaches for improving the stability and efficiency of inverted perovskite solar cells. Here, we demonstrate highly efficient and stable inverted perovskite solar cells by applying a GO-doped PEDOT:PSS (PEDOT:GO) film as an HTL. The high performance of this solar cell stems from the excellent optical and electrical properties of the PEDOT:GO film, including a higher electrical conductivity, a higher work function related to the reduced contact barrier between the perovskite layer and the PEDOT:GO layer, enhanced crystallinity of the perovskite crystal, and suppressed leakage current. Moreover, the device with the PEDOT:GO layer showed excellent long-term stability in ambient air conditions. Thus, the enhancement in the efficiency and the excellent stability of inverted perovskite solar cells are promising for the eventual commercialization of perovskite optoelectronic devices.

SUBMITTER: Yu JC 

PROVIDER: S-EPMC5773582 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature

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Highly efficient and stable inverted perovskite solar cell employing PEDOT:GO composite layer as a hole transport layer.

Yu Jae Choul JC   Hong Ji A JA   Jung Eui Dae ED   Kim Da Bin DB   Baek Soo-Min SM   Lee Sukbin S   Cho Shinuk S   Park Sung Soo SS   Choi Kyoung Jin KJ   Song Myoung Hoon MH  

Scientific reports 20180118 1


The beneficial use of a hole transport layer (HTL) as a substitution for poly(3,4-ethlyenedioxythiophene): polystyrene sulfonate (PEDOT:PSS) is regarded as one of the most important approaches for improving the stability and efficiency of inverted perovskite solar cells. Here, we demonstrate highly efficient and stable inverted perovskite solar cells by applying a GO-doped PEDOT:PSS (PEDOT:GO) film as an HTL. The high performance of this solar cell stems from the excellent optical and electrical  ...[more]

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