Key Laboratory of Molecular Engineering of Polymers of Ministry of Education, Laboratory of Advanced Materials and Department of Macromolecular Science, Fudan University, Shanghai, China.
Nat Nanotechnol. 2009 Nov;4(11):738-41. doi: 10.1038/nnano.2009.264. Epub 2009 Sep 13.
Chromatic materials such as polydiacetylene change colour in response to a wide variety of environmental stimuli, including changes in temperature, pH and chemical or mechanical stress, and have been extensively explored as sensing devices. Here, we report the facile synthesis of carbon nanotube/polydiacetylene nanocomposite fibres that rapidly and reversibly respond to electrical current, with the resulting colour change being readily observable with the naked eye. These composite fibres also chromatically respond to a broad spectrum of other stimulations. For example, they exhibit rapid and reversible stress-induced chromatism with negligible elongation. These electrochromatic nanocomposite fibres could have various applications in sensing.
有色材料，如聚二乙炔，会对各种环境刺激（包括温度、pH 值以及化学或机械压力的变化）做出颜色变化，因此被广泛探索作为传感装置。在这里，我们报告了碳纳米管/聚二乙炔纳米复合材料纤维的简易合成方法，这种纤维对电流具有快速且可回复的响应，肉眼可轻易观察到颜色的变化。这些复合材料纤维也对广谱的其他刺激做出显色反应。例如，它们表现出快速和可回复的、具有极小伸长率的应力诱导变色。这些电致变色纳米复合材料纤维可以在传感方面具有各种应用。
