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Issue 18, 2019
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Influence of the average molar mass of poly(N-vinylpyrrolidone) on the dimensions and conductivity of silver nanowires

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Abstract

We investigate the influence of the average molar mass (Mw) of the capping agent poly(N-vinylpyrrolidone) (PVP) on the conductivity of a silver nanowire (AgNW) network. During the polyol process, the chain length of PVP is known to influence the AgNW diameters and lengths. By altering the reaction temperature and time and using PVP of different chain lengths, we synthesized AgNWs with varying diameters, lengths and PVP coverage. The obtained plethora of AgNWs is the basis for conductivity investigations of networks made of AgNWs with a diameter of either 60 nm or 80 nm. The results show a negative influence of long-chain PVP on the conductivity of the subsequent network if 60 nm thick AgNWs are employed. Overall, we obtain well performing AgNW transparent electrodes on glass with RS = 24.4 Ω sq−1 at 85.5%T550nm.

Graphical abstract: Influence of the average molar mass of poly(N-vinylpyrrolidone) on the dimensions and conductivity of silver nanowires

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Publication details

The article was received on 03 Feb 2019, accepted on 13 Mar 2019 and first published on 13 Mar 2019


Article type: Paper
DOI: 10.1039/C9CP00680J
Phys. Chem. Chem. Phys., 2019,21, 9036-9043
  • Open access: Creative Commons BY-NC license
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    Influence of the average molar mass of poly(N-vinylpyrrolidone) on the dimensions and conductivity of silver nanowires

    L. Sonntag, F. Eichler, N. Weiß, L. Bormann, D. S. Ghosh, J. M. Sonntag, R. Jordan, N. Gaponik, K. Leo and A. Eychmüller, Phys. Chem. Chem. Phys., 2019, 21, 9036
    DOI: 10.1039/C9CP00680J

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