期刊
JOURNAL OF APPLIED PHYSICS
卷 125, 期 2, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5081766
关键词
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资金
- Natural Science Foundation of Jiangsu Province [BK20170908, BK20170903]
- National Natural Science Foundation of China (NNSFC) [61704090]
- Natural Science Foundation of the Higher Education Institutions of Jiangsu Province [17KJB510041, 17KJB510040]
- National and Local Joint Engineering Laboratory of RF Integration and Micro-Assembly Technology [KFJJ20170307, KFJJ20170204]
- NUPTSF [NY217123, NY217124, NY218020]
Blue phase liquid crystals (BPLCs) are emerging as a promising candidate for tunable three-dimensional (3D) photonic crystals. Uniform monodomain BPLCs with a large temperature range are needed to achieve higher performance for photonic applications. Here, we experimentally demonstrated monodomain polymer stabilized blue phase liquid crystals (PS-BPLCs) induced by a long-lasting electric field. The PS-BPLCs with a single crystal orientation can be obtained with appropriate electrical treatment, and they also possess a large temperature range of 70 degrees C including room temperature. The physical mechanism behind their spectral properties, phase transition temperature, and the morphology of crystal growth process under different electric fields are investigated with detailed experimental analysis. This work helps further understanding of crystal nucleation and growth of PS-BPLCs in electric field and also can expedite the development of PS-BPLC based tunable 3D photonic crystal devices. Published under license by AIP Publishing.
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