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Liquid Crystals Volume 46, 2019 - Issue 2
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Article

TiO2 nanorod arrays induced broad-band reflection in chiral nematic liquid crystals with photo-polymerization network

Yang LiuDepartment of Materials Science and Engineering, University of Science and Technology, Beijing, ChinaView further author information
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Dong WangDepartment of Materials Science and Engineering, University of Science and Technology, Beijing, ChinaCorrespondence[email protected]
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Hong GaoDivision of Material Engineering, China Academy of Space Technology, Beijing, ChinaView further author information
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Jing-jing ZhangDivision of Material Engineering, China Academy of Space Technology, Beijing, ChinaView further author information
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Yuan TaoDepartment of Materials Science and Engineering, University of Science and Technology, Beijing, ChinaView further author information
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Chen YeDepartment of Materials Science and Engineering, University of Science and Technology, Beijing, ChinaView further author information
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Wan-li HeDepartment of Materials Science and Engineering, University of Science and Technology, Beijing, ChinaView further author information
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Zhou YangDepartment of Materials Science and Engineering, University of Science and Technology, Beijing, ChinaView further author information
&
Hui CaoDepartment of Materials Science and Engineering, University of Science and Technology, Beijing, ChinaView further author information
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Pages 210-218 | Received 13 Jan 2018, Accepted 04 Jun 2018, Published online: 19 Jun 2018
 
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ABSTRACT

A series of TiO2 nanorod arrays were obtained by hydrothermal reaction, then the morphologies were characterized and analysed. In the light polymerization condition, different morphologies of TiO2 nanorod arrays and chiral nematic liquid crystalline (N*-LCs) media were combined to prepare broad-band reflectors. By adjusting the length and interval size of the TiO2 nanorod arrays, the reflection spectra and the positions of the reflected spectrum and the reflected bandwidth can be controlled accordingly. As a result, the effect of polymerization temperatures and morphologies of TiO2 nanorod arrays on the broad-band reflection in the N*-LC composite system has been investigated. Potential applications of the composite were related to brightness enhancement films, bandwidth-controllable reflective polarizers and near-infrared light blocking films.

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Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the National Key Basic Research Program of China [2014CB931804], the National Natural Science Foundation of China [Grant No. 51373024, 51473020, 51673023, 61370048], the Fundamental Research Funds for the Central Universities [Grant No. FRF-TP-15-003A3].

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