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Issue 12, 2016
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Fully solution-processed transparent electrodes based on silver nanowire composites for perovskite solar cells

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Abstract

We report all-solution-processed transparent conductive electrodes based on Ag nanowire (AgNW)-embedded metal oxide composite films for application in organometal halide perovskite solar cells. To address the thermal instability of Ag nanowires, we used combustive sol–gel derived thin films to construct ZnO/ITO/AgNW/ITO composite structures. The resulting composite configuration effectively prevented the AgNWs from undergoing undesirable side-reactions with halogen ions present in the perovskite precursor solutions that significantly deteriorate the optoelectrical properties of Ag nanowires in transparent conductive films. AgNW-based composite electrodes had a transmittance of ∼80% at 550 nm and sheet resistance of 18 Ω sq−1. Perovskite solar cells fabricated using a fully solution-processed transparent conductive electrode, Au/spiro-OMeTAD/CH3NH3PbI3 + m-Al2O3/ZnO/ITO/AgNW/ITO, exhibited a power conversion efficiency of 8.44% (comparable to that of the FTO/glass-based counterpart at 10.81%) and were stable for 30 days in ambient air. Our results demonstrate the feasibility of using AgNWs as a transparent bottom electrode in perovskite solar cells produced by a fully printable process.

Graphical abstract: Fully solution-processed transparent electrodes based on silver nanowire composites for perovskite solar cells

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Publication details

The article was received on 09 Jul 2015, accepted on 22 Sep 2015 and first published on 28 Sep 2015


Article type: Paper
DOI: 10.1039/C5NR04585A
Author version available: Download Author version (PDF)
Citation: Nanoscale, 2016,8, 6308-6316
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    Fully solution-processed transparent electrodes based on silver nanowire composites for perovskite solar cells

    A. Kim, H. Lee, H. Kwon, H. S. Jung, N. Park, S. Jeong and J. Moon, Nanoscale, 2016, 8, 6308
    DOI: 10.1039/C5NR04585A

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