Transparency-switchable actuator based on aligned carbon nanotube and paraffin-polydimethylsiloxane composite
Transparency-switchable actuator based on aligned carbon nanotube and paraffin-polydimethylsiloxane composite
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DOI：
10.1016/j.carbon.2017.02.053
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发表时间：
2017-05
期刊：
影响因子：
10.9
通讯作者：
Wei Zhang;Mingcen Weng;Peidi Zhou;Luzhuo Chen;Zhigao Huang;Lingling Zhang;Changhong Liu;S. Fan-S.
中科院分区：
文献类型：
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作者：
Wei Zhang;Mingcen Weng;Peidi Zhou;Luzhuo Chen;Zhigao Huang;Lingling Zhang;Changhong Liu;S. Fan-S.
高性能致动器在人工肌肉、光学开关和仿生等领域的应用已经得到了广泛的研究。然而，以前的执行器大多是单一颜色的。具有可切换光学特性的致动器仍然很少见。在这里，我们提出了一种基于单层超对准碳纳米管片和石蜡-聚二甲基硅氧烷复合材料的透明开关驱动器。当施加电压时，致动器的透射率从0.7%变化到67%（波长为550 nm）。同时，弯曲明显，位移达8.4 mm。执行器也很耐用，显示可逆的驱动现象和可重复切换透明100个周期。此外，由于这种新型致动器的光学特性随致动过程的变化而变化，与以往的传统致动器相比更加智能，因此制作了智能窗口，预示着其在个人隐私保护和智能家居设备中的应用。总之，这项工作为智能窗户、光开关等开辟了新的视角。
High-performance actuators have been studied for many years, as they can be used in the fields of artificial muscles, optical switches and biomimetic applications. However, previous actuators mostly had single colors. Actuators with switchable optical properties are still rare. Here, we propose a transparency-switchable actuator based on single-layer superaligned carbon nanotube sheet and paraffin-polydimethylsiloxane composite. When a voltage is applied, the transmittance of the actuator changes from 0.7% to 67% (at the wavelength of 550 nm). At the same time, it bends obviously with a displacement up to 8.4 mm. The actuator is also durable, demonstrating both reversible actuation phenomenon and repeatable switchable transparency for 100 cycles. In addition, since this new type of actuator demonstrates optical property changing together with actuation process, which is smarter compared to previous conventional actuators, a smart window is fabricated, indicating its application in personal privacy protection and intelligent household devices. In a word, this work opens new perspectives on smart windows, optical switches and so on.