Shape-Morphing Nanocomposite Origami

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• 作者：Christine M. Andres ; Jian Zhu ; Terry Shyu ; Connor Flynn ; Nicholas A. Kotov
• 刊名：Langmuir
• 出版年：2014
• 出版时间：May 20, 2014
• 年：2014
• 卷：30
• 期：19
• 页码：5378-5385
• 全文大小：430K
• 年卷期：v.30,no.19(May 20, 2014)
• ISSN：1520-5827

文摘

Nature provides a vast array of solid materials that repeatedly and reversibly transform in shape in response to environmental variations. This property is essential, for example, for new energy-saving technologies, efficient collection of solar radiation, and thermal management. Here we report a similar shape-morphing mechanism using differential swelling of hydrophilic polyelectrolyte multilayer inkjets deposited on an LBL carbon nanotube (CNT) composite. The out-of-plane deflection can be precisely controlled, as predicted by theoretical analysis. We also demonstrate a controlled and stimuli-responsive twisting motion on a spiral-shaped LBL nanocomposite. By mimicking the motions achieved in nature, this method offers new opportunities for the design and fabrication of functional stimuli-responsive shape-morphing nanoscale and microscale structures for a variety of applications.