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Issue 21, 2018
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Zeolitic-imidazolate-framework (ZIF-8)/PEDOT:PSS composite counter electrode for low cost and efficient dye-sensitized solar cells

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Abstract

ZIF-8 polystyrenesulfonate-doped poly(3,4-ethylenedioxythiophene) (ZIF-8/PEDOT:PSS) is prepared and used as the alternative counter electrode (CE) for dye-sensitized solar cells (DSSCs) based on I/I3 and Co2+/Co3+ redox mediators. It is found that incorporation of ZIF-8 in PEDOT:PSS results in boosting the catalytic activity and charge transferability of the ZIF-8/PEDOT:PSS composite toward the reduction of I3 and Co3+ redox mediators compared with pristine PEDOT:PSS. The assembled DSSCs based on the (3%) ZIF-8/PEDOT:PSS composite CE in iodide-based cells yield 7.02% photoelectric conversion efficiency (PCE) which is comparable to that of the conventional platinum CE (PCE = 7.24%) and better than that of the pristine PEDOT:PSS (PCE = 4.00%) CE. In addition, the (1%) ZIF-8/PEDOT:PSS CE shows a PCE of 6.84% for cobalt-based DSSCs which is comparable to that of Pt (PCE = 7.56%).

Graphical abstract: Zeolitic-imidazolate-framework (ZIF-8)/PEDOT:PSS composite counter electrode for low cost and efficient dye-sensitized solar cells

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Publication details

The article was received on 27 Jun 2018, accepted on 11 Sep 2018 and first published on 12 Sep 2018


Article type: Paper
DOI: 10.1039/C8NJ03192D
Citation: New J. Chem., 2018,42, 17303-17310
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    Zeolitic-imidazolate-framework (ZIF-8)/PEDOT:PSS composite counter electrode for low cost and efficient dye-sensitized solar cells

    A. S. A. Ahmed, W. Xiang, I. Saana Amiinu and X. Zhao, New J. Chem., 2018, 42, 17303
    DOI: 10.1039/C8NJ03192D

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