期刊
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
卷 27, 期 8, 页码 1011-1018出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/1045389X15577651
关键词
strain sensing; flexible; transparent; silver nanowire; spray coating; cellulose; layer-by-layer deposition
资金
- National Research Foundation, South Korea [NRF-2013M3C1A3059586]
- National Research Foundation of Korea [2013M3C1A3059586] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Simple and versatile method of layer-by-layer deposition is used to coat silver nanowire on a cellulose film to fabricate a flexible and transparent strain sensor. Strain-sensing behaviors of such a simply fabricated cellulose film are analyzed in both stretching and bending modes. When 0.01wt% silver nanowire is coated on the cellulose film, 70% transmittance is maintained with 2.4 k Omega/sq of sheet resistance, which is applicable for transparent electrode of the strain sensor. Conductivity of the transparent electrode is maintained after mechanical stretching, which demonstrates that the silver nanowire coating is securely adhered on the surface of cellulose film. The strain sensor shows high strain sensitivity and good gauge factor maintaining good transparency at low silver nanowire concentration, which might be associated with the tunneling resistance change in the silver nanowire. The morphology of the silver nanowire-coated cellulose strain sensor is investigated using an atomic force microscopy with an increase in silver nanowire concentration.
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