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Issue 31, 2019
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Fabrication and photonic applications of large-domain blue phase films

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Abstract

Here, a facile method is put forward to fabricate freestanding, large-domain blue phase (BP) films based on self-assembly technology. This fabrication method enables the formation of BP domains with large-scale lateral dimensions of ∼230 μm, which exhibit sharp photonic bandgaps with high reflectivity. In addition, the large-domain BP structures with good optical performances can be preserved after photopolymerization. What is more, the long-range periodic nanostructures of double-twist cylinders can be directly visualized through transmission electron microscopy, providing a powerful tool to investigate BP structures at the nanoscale. Furthermore, dual-wavelength lasing is achieved by doping the large-domain BP films with fluorescent dyes, which is firstly observed in BP materials.

Graphical abstract: Fabrication and photonic applications of large-domain blue phase films

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Article information


Submitted
01 Jun 2019
Accepted
18 Jul 2019
First published
19 Jul 2019

J. Mater. Chem. C, 2019,7, 9460-9466
Article type
Communication

Fabrication and photonic applications of large-domain blue phase films

J. Yang, J. Liu, B. Guan, W. He, Z. Yang, J. Wang, T. Ikeda and L. Jiang, J. Mater. Chem. C, 2019, 7, 9460
DOI: 10.1039/C9TC02938A

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