کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
542206 | 1450339 | 2015 | 5 صفحه PDF | دانلود رایگان |
• Graphene nanoplatelets (GNP)/PDMS nanocomposite was used for the fabrication of a capacitive strain sensor.
• The dispersion of GNP in various solvents was examined using FT-IR spectroscopy as an indication tool.
• The sensor was characterized for small strain measurements (≤ 0.2%).
Carbon-based materials are commonly used as fillers in polymer matrices for the fabrication of flexible physical and chemical sensors. Among the carbon materials, graphene has emerged as a promising next generation material replacing the traditionally used carbon black. In this work, we present the fabrication process of flexible graphene nanoplatelets/polydimethlylsiloxane (GNP/PDMS) capacitive strain sensor. In order to optimize the GNP/PDMS suspension, the dispersion of GNP in different solvents for the formation of a homogeneous suspension is examined by FT-IR spectroscopy. The sensor is fabricated by a low cost, easy to implement and rapid method using layer by layer spin-coating. The sensor exhibits linear capacitance change to small strains (≤ 0.2%).
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Journal: Microelectronic Engineering - Volume 142, 1 July 2015, Pages 7–11