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Inverted organic solar cells comprising low-temperature-processed ZnO films

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Abstract

Inverted organic solar cells are fabricated using low-temperature-annealed ZnO film as an electron transport layer. Uniform ZnO films were prepared by spin coating a diethylzinc (DEZ) precursor solution in air, followed by annealing at 100 °C. Organic solar cells prepared on these ZnO films with a 1:1 P3HT:PCBM blend as the active layer show a high power conversion efficiency of 4.03 %, which is more than 10 % higher than the PCE of solar cells comprising ZnO prepared via a high-temperature sol–gel route.

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Acknowledgments

B. P is grateful to the Alexander von Humboldt Foundation for providing a Humboldt research fellowship.

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Author notes

  1. Basudev Pradhan

    Present address: Centre for Energy Engineering, Central University of Jharkhand, Ranchi, Jharkhand, India

Authors and Affiliations

  1. Institute of Physics and Astronomy, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany

    Basudev Pradhan, Steve Albrecht, Burkhard Stiller & Dieter Neher

Authors
  1. Basudev Pradhan
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  2. Steve Albrecht
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Correspondence to Basudev Pradhan.

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Pradhan, B., Albrecht, S., Stiller, B. et al. Inverted organic solar cells comprising low-temperature-processed ZnO films. Appl. Phys. A 115, 365–369 (2014). https://doi.org/10.1007/s00339-014-8373-8

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