標題: | Synthesis and study of hybrid hydrogen-bonded bent-core liquid crystal complexes containing C-60- and Si-based proton donors |
作者: | Liu, Shih-Hsien Yang, Po-Jen Wei, Chong-Lun Chiang, I. -Hung Liao, Chun-Yen Gouda, Chinmayananda Arumugaperumal, Reguram Chuang, Wei-Tsung Lee, Jey-Jau Chen, San-Yuan Lin, Hong-Cheu 材料科學與工程學系 Department of Materials Science and Engineering |
公開日期: | 1-一月-2015 |
摘要: | Novel hydrogen-bonded (H-bonded) C-60- and Si-based bent-core liquid crystal (LC) complexes containing a bent-shaped proton acceptor and C-60- and Si-based single/double armed proton donors were synthesized and mixed to produce hybrid H-bonded LC complexes. The SmCP phases could be introduced in the hybrid LC complexes with a very high C-60-based moiety up to 90 mol%. Among our H-bonded LC complexes, the hybrid LC complexes with low amounts of the C-60-based moiety (<= 24 mol%) possessed the highest spontaneous polarization value (ca. 494 nC cm(-2)), the widest mesophasic range (40.8 degrees C) and the lowest saturated electric field (8.8 V-pp mu m(-1)). Under electric fields of modified triangle waveforms, both series of hybrid H-bonded LC complexes displayed an anti-ferroelectric (AF) to a ferroelectric (FE) polar switching as the C-60-based moiety increased up to 24-50 mol%. Therefore, the hybrid H-bonded LC complexes containing a broad molar ratio (0-90 mol%) of C-60-based moiety revealed a tunable route for the electro-optical applications of C-60-based H-bonded liquid crystals. |
URI: | http://dx.doi.org/10.1039/c5ra11186b http://hdl.handle.net/11536/129443 |
ISSN: | 2046-2069 |
DOI: | 10.1039/c5ra11186b |
期刊: | RSC ADVANCES |
Volume: | 5 |
Issue: | 121 |
起始頁: | 99732 |
結束頁: | 99738 |
顯示於類別: | 期刊論文 |