A general surface-treatment-free approach to fabrication of alignment layers using a super-aligned carbon nanotube film template

We develop a general approach to the fabrication of films with unidirectional grooves, such as silicon nitride, silicon dioxide and aluminium oxide, in which the surface is not required to be treated. Super-aligned carbon nanotube (SACNT) film may be used as a template and as sacrificial layer, whic...

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Published inChinese physics B Vol. 19; no. 8; pp. 632 - 635
Main Author 付伟琦 魏洋 朱峰 刘亮 姜开利 李群庆 范守善
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.08.2010
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ISSN1674-1056
2058-3834
DOI10.1088/1674-1056/19/8/088104

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Abstract We develop a general approach to the fabrication of films with unidirectional grooves, such as silicon nitride, silicon dioxide and aluminium oxide, in which the surface is not required to be treated. Super-aligned carbon nanotube (SACNT) film may be used as a template and as sacrificial layer, which is subsequently removed by heating in an atmosphere of air. The unidirectional morphology of the SACNT film turns into a desired film, which is found to possess the ability to align liquid crystal molecules. This approach also features high efficiency, low cost and easy scaling-up for mass production.
AbstractList We develop a general approach to the fabrication of films with unidirectional grooves, such as silicon nitride, silicon dioxide and aluminium oxide, in which the surface is not required to be treated. Super-aligned carbon nanotube (SACNT) film may be used as a template and as sacrificial layer, which is subsequently removed by heating in an atmosphere of air. The unidirectional morphology of the SACNT film turns into a desired film, which is found to possess the ability to align liquid crystal molecules. This approach also features high efficiency, low cost and easy scaling-up for mass production.
We develop a general approach to the fabrication of films with unidirectional grooves, such as silicon nitride, silicon dioxide and aluminium oxide, in which the surface is not required to be treated. Super-aligned carbon nanotube (SACNT) film may be used as a template and as sacrificial layer, which is subsequently removed by heating in an atmosphere of air. The unidirectional morphology of the SACNT film turns into a desired film, which is found to possess the ability to align liquid crystal molecules. This approach also features high efficiency, low cost and easy scaling-up for mass production.
Author 付伟琦 魏洋 朱峰 刘亮 姜开利 李群庆 范守善
AuthorAffiliation Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University, Beijing 100084, China
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Cites_doi 10.1016/j.carbon.2009.08.009
10.1038/354056a0
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SubjectTerms Alignment
Aluminum oxide
Carbon nanotubes
Grooves
Heating
Liquid crystals
Low cost
Silicon nitride
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Title A general surface-treatment-free approach to fabrication of alignment layers using a super-aligned carbon nanotube film template
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