کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
737141 1461905 2013 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Flexible energy storage devices based on carbon nanotube forests with built-in metal electrodes
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Flexible energy storage devices based on carbon nanotube forests with built-in metal electrodes
چکیده انگلیسی

Mechanically bendable energy storage devices have been demonstrated based on a lift-off and liquid densification process to construct carbon nanotube (CNT) forests with built-in bottom metal electrodes on top of a flexible substrate. The flexible CNT structure has been fabricated and tested as a supercapacitor electrode with the following salient features: (1) excellent transfer of charge from the aligned CNTs to the bottom contact metal layer, (2) a simple and straightforward fabrication process, and (3) easy integration with a variety of surfaces and topographies. Experimental results have shown that a 5 mm × 10 mm electrode with 40 μm-thick CNT forest and 50 nm-thick molybdenum bottom metal contact has been transferred from a silicon growth substrate onto a 200 μm-thick Al/Thermanox™ plastic substrate. The attached film survived the bending of as large as 180°. A measured specific capacitance of 7.0 mF/cm2 has been achieved. Repeated mechanical bending tests followed by CV cyclic measurements have shown good device stability. As such, flexible energy storage devices composed of CNT forests with built-in metal electrodes could have broad applications in modern systems that demand components with adaptable shapes to fit into small form factors and ergonomic designs.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators A: Physical - Volume 195, 1 June 2013, Pages 224–230
نویسندگان
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