Fatigue and the electrical resistance of silver nanowire networks

SCRIPTA MATERIALIA

卷:181

Article

Liu, Chongguang¹  Ainsworth, Catherine A.¹  Sampson, William W.¹  Derby, Brian¹ 

[1] Univ Manchester, Dept Mat, Oxford Rd, Manchester M13 9PL, Lancs, England

关键词: Electrical resistivity;    Optical transmission;    Fatigue;    Nanostructured materials;    Nanowire networks;   

DOI  :  10.1016/j.scriptamat.2020.02.017

来源: Elsevier

【 摘 要 】

Silver nanowire networks on polymeric substrates have applications for flexible displays. However their electrical sheet resistance, R-s, increases with increasing flexural strain cycles. A percolation model gives R-s = R-n((c) over bar)(-2), where (c) over bar is the mean network coverage and R-n is the network resistance, determined by the dimensions and electrical resistance of the individual nanowires. Network resistance is independent of coverage and increases with strain cycles, showing two clear regimes following the onset of damage after about 100 cycles. The results indicate that fatigue damage is dominated by a loss in network connectivity rather than a change in the electrical properties of individual nanowires. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd.

【 授权许可】

Free