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Issue 2, 2018
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A facile approach towards chemical modification of Ag nanowires by PEDOT as a transparent electrode for organic solar cells

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Abstract

Among the recent investigations on transparent electrode materials applied in photoelectric devices, poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) has been widely used because of its high transparency and low material cost. However, its relatively low conductivity, hygroscopicity, and acidity limit its further application. Herein, a novel PEDOT:PSS:S-AgNWs composite has been prepared via the in situ oxidative polymerization of EDOT using PSS and 4-mercaptobenzenesulfonic acid-modified silver nanowires (S-AgNWs), in which there are electrostatic interactions between PEDOT and sulfonic groups from PSS and S-AgNWs. When compared with commercial Clevios PH1000, a more crystalline and conductive PEDOT with quinoid conformation was developed by partially substituting PSS with the S-AgNWs; this resulted in the formation of PEDOT:PSS:S-AgNWs showing a lower sheet resistance (64 Ω sq−1 at ∼94.8% transmittance). Furthermore, due to reduced work function, hygroscopicity, and acidic properties of PEDOT:PSS:S-AgNWs derived from the in situ composite between S-AgNWs and PEDOT, as well as the reduction in the PSS content, PEDOT:PSS:S-AgNWs was used as a transparent electrode for the formation of organic solar cells (OSCs), displaying a power conversion efficiency of 10.2% and good storage stability.

Graphical abstract: A facile approach towards chemical modification of Ag nanowires by PEDOT as a transparent electrode for organic solar cells

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Publication details

The article was received on 13 Oct 2017, accepted on 01 Dec 2017 and first published on 04 Dec 2017


Article type: Paper
DOI: 10.1039/C7TC04673A
Citation: J. Mater. Chem. C, 2018,6, 312-319
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    A facile approach towards chemical modification of Ag nanowires by PEDOT as a transparent electrode for organic solar cells

    H. Zhou, Y. Wang, J. Zhang, Z. Yu, Y. Li, L. Tan and Y. Chen, J. Mater. Chem. C, 2018, 6, 312
    DOI: 10.1039/C7TC04673A

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