Electroactive carbon nanotube actuators: Soft-lithographic fabrication and electro-chemical modelling
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- 作者：Alberto Mazzoldi ; Mario Tesconi ; Aless ; ro Tognetti ; Walter Rocchia ; Giovanni Vozzi ; Giovanni Pioggia ; Arti Ahluwalia ; Danilo De Rossi
- 关键词：Carbon nanotubes ; Soft-Lithography ; Electro-chemical modelling ; Bender ; Cyclic voltammetry
- 刊名：Materials Science and Engineering: C
- 出版年：2008
- 出版时间：1 August 2008
- 年：2008
- 卷：28
- 期：7
- 页码：1057-1064
- 全文大小：914 K
文摘
Carbon nanotube (NT) actuators were fabricated using the micromolding method. In order to prevent the nanotubes from aggregating, they were enclosed in a partially cross-linked polyvinylalcohol–polyallylamine matrix. A unimorph matrix bender in the form of a small multi-layered strip, 5 mm × 15 mm was fabricated. The resulting composite system: NT/PVA, solid polymer electrolyte and metal contact, was characterised using impedance analysis and cyclic voltammetry. Initial measurements on electro-mechanical transduction show a conversion efficiency of 0.2 μm/mV. An electrochemical model of the impedance of the system was then developed, with which the experimental results agree fairly well.