Blue light emission from a rod-like liquid crystal
A rod-like liquid crystal 4-butoxybenzylidene-4octylphenylamine was synthesized. The molecular structure and the liquid crystalline phases of the synthesized compound were characterized with the nuclear magnetic resonance spectroscopy, the differential scanning calorimetry, and the polarizing optical microscopy, respectively. The absorption measurement shows that the dilute tetrahydrofuran solutions of the rod-like liquid crystal absorb photons at about 290 and 330 nm, respectively; while the luminescence measurements indicate that this rod-like liquid crystal can give off intense blue photoluminescence with its dominant peak located at about 430 nm. Using Hückel tight-binding program, we have calculated the electronic structures of the liquid crystal, and the origin of the blue photoluminescence is discussed.
Rod-shaped liquid crystal Photoluinescence Electronic structures Absorbance
Bao-gai Zhai Yuan Ming Huang
Modem Educational Technology Center, Yunnan Normal University, Yunnan 650092, China College of Physics & Electronic Information, Yunnan Normal University, Yunnan 650092, China
国际会议
2009 International Symposium on Liquid Crystal Science and Technology(2009国际液晶科技研讨会)
昆明
英文
288-291
2009-08-02（万方平台首次上网日期，不代表论文的发表时间）