文献类型：期刊文献

英文题名：Blue phase liquid crystals induced by bent-shaped molecules based on 1,3,4-oxadiazole derivatives

作者：Wang, Haifeng[1];Zheng, Zhigang[1];Shen, Dong[1]

机构：[1]E China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China

年份：2012

卷号：39

期号：1

起止页码：99

外文期刊名：LIQUID CRYSTALS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000299137100010)】；

基金：This work was supported by the National Science Foundation of China (grant No. 60878047 No. 61108065), the Fundamental Research Funds for the Central Universities (grant No. WM1014015) and the Research Foundations of ECUST (grant No. yk0157125).

语种：英文

外文关键词：blue phase; liquid crystal; oxadiazole

摘要：Five bent-shaped molecules derived from the 1,3,4-oxadiazole core are synthesised and doped into chiral nematic liquid crystals to induce the blue phase. The effects of their terminal chain length on the blue phase range are compared and analysed experimentally. The results show that the blue phase range is significantly influenced by terminal chain length, and the widest range could be obtained in the case that the chain length is neither too long nor too short. In addition, it is also found that the mechanism of a blue phase induced by bent-shaped molecules is mainly related with its geometry, no matter whether a liquid crystal phase exists or not.