Self-Assembled, Nanowire Network Electrodes for Depleted Bulk Heterojunction Solar Cells

Authors

  • Xinzheng Lan,

    1. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
    2. School of Materials Science and Engineering, Hefei University of Technology, 193 Tunxi Rd, Hefei, Anhui Province, 230009, P.R. China
    Current affiliation:
    1. X.L, J.B., and S.M. contributed equally to this work.
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  • Jing Bai,

    1. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
    Current affiliation:
    1. X.L, J.B., and S.M. contributed equally to this work.
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  • Silvia Masala,

    1. King Abdullah University of Science and Technology, 4700 Thuwal 23955-6900 Saudi Arabia
    Current affiliation:
    1. X.L, J.B., and S.M. contributed equally to this work.
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  • Susanna M. Thon,

    1. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
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  • Yuan Ren,

    1. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
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  • Illan J. Kramer,

    1. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
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  • Sjoerd Hoogland,

    1. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
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  • Arash Simchi,

    1. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
    2. Department of Materials Science and Engineering, Sharif University of Technology, P.O.Box 11365-9466, Azadi Avenue, Tehran, Iran
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  • Ghada I. Koleilat,

    1. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
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  • Daniel Paz-Soldan,

    1. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
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  • Zhijun Ning,

    1. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
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  • André J. Labelle,

    1. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
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  • Jin Young Kim,

    1. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
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  • Ghassan Jabbour,

    Corresponding author
    1. King Abdullah University of Science and Technology, 4700 Thuwal 23955-6900 Saudi Arabia
    • King Abdullah University of Science and Technology, 4700 Thuwal 23955-6900 Saudi Arabia.
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  • Edward H. Sargent

    Corresponding author
    1. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
    • Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
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Abstract

original image

Herein, a solution-processed, bottom-up-fabricated, nanowire network electrode is developed. This electrode features a ZnO template which is converted into locally connected, infiltratable, TiO2 nanowires. This new electrode is used to build a depleted bulk heterojunction solar cell employing hybrid-passivated colloidal quantum dots. The new electrode allows the application of a thicker, and thus more light-absorbing, colloidal quantum dot active layer, from which charge extraction of an efficiency comparable to that obtained from a thinner, planar device could be obtained.

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