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Inverted polymer solar cells with TiO2 electron extraction layers prepared by magnetron sputtering

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Abstract

TiO2 thin films deposited by magnetron sputtering possess excellent optical transmittance, high refractive index, good adhesion and chemical stability. In this manuscript, TiO2 thin films deposited by magnetron sputtering was used for the first time as an electron extraction layer in inverted polymer solar cells (IPSCs), and the effect of the TiO2 thickness on the photovoltaic performance of P3HT:PC61BM IPSCs was investigated. The highest PCE value of 3.75% was obtained when the thickness of TiO2 thin films was in the range between 42 nm and 73 nm. The absorption properties, morphology and structure of the TiO2 films were characterized by UV-Vis spectroscopy, SEM and Raman spectroscopy, and were related to the device performance of P3HT:PC61BM IPSCs. The results indicate that TiO2 films deposited by magnetron sputtering are an excellent electron extraction layer for IPSCs.

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Authors and Affiliations

  1. Key Laboratory of Environment-Friendly Chemistry and Applications of Ministry of Education; College of Chemistry, Xiangtan University, Xiangtan, 411105, China

    ZhiLiang Jiang, Bin Zhao & SongTing Tan

  2. State Key Laboratory of Catalysis, Dalian institute of Chemical Physics, Chinese Academy of Sciences; Dalian National Laboratory for Clean Energy, Dalian, 116023, China

    ZhiLiang Jiang, Dong Yang, Nan Wang & Jian Zhang

  3. Graduate University of Chinese Academy of Sciences, Beijing, 100049, China

    Dong Yang, Nan Wang & Jian Zhang

  4. Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing, 100044, China

    FuJun Zhang

Authors
  1. ZhiLiang Jiang
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  2. Dong Yang
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  3. Nan Wang
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  4. FuJun Zhang
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  5. Bin Zhao
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  6. SongTing Tan
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  7. Jian Zhang
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Correspondence to Bin Zhao or Jian Zhang.

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Jiang, Z., Yang, D., Wang, N. et al. Inverted polymer solar cells with TiO2 electron extraction layers prepared by magnetron sputtering. Sci. China Chem. 56, 1573–1577 (2013). https://doi.org/10.1007/s11426-013-4901-1

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  • DOI: https://doi.org/10.1007/s11426-013-4901-1

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