Issue 18, 2019

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

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

Supplementary files

Article information

Article type
Paper
Submitted
03 Feb 2019
Accepted
13 Mar 2019
First published
13 Mar 2019
This article is Open Access
Creative Commons BY-NC license

Phys. Chem. Chem. Phys., 2019,21, 9036-9043

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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