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Indexed by:Journal Papers

Date of Publication:2019-08-01

Journal:ADVANCED FUNCTIONAL MATERIALS

Included Journals:EI、SCIE

Volume:29

Issue:33

ISSN No.:1616-301X

Key Words:conductivity; layer-by-layer agitation-assisted alignment; silver nanowires; stretchability; transparent electrode

Abstract:Transparent conductors for the next generation of soft electronic devices need to be highly stretchable, conductive, and transparent, while an inevitable challenge lies in enhancing them simultaneously. Cost-effective silver nanowires (AgNWs) are widely used but the conventional random network yields a high junction resistance as well as degraded conductivity in the stretched state. Here, a novel, facile, and versatile agitation-assisted assembly approach is reported to control the orientation direction and density of AgNWs and to layer-by-layer deposit the AgNWs monolayer or multilayers onto the prestrained soft substrate. This electrode demonstrates an unprecedented low sheet resistance of 2.8 omega sq(-1) as well as high transparency of 85% and high stretchability of 40%. It is interesting to note that contrary to most other reports, such a device shows higher conductivity in the stretched state compared to the released state.