A slight bluish-white fluorescence from E,E-2,6-bis(4-cyanostyryl)pyridine pristine crystals |
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| Authors: | Hiroyuki Mochizuki Hitoshi Kusama |
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| Institution: | Research Center for Photovoltaics, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba Ibaraki 305-8565 Japan |
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| Abstract: | Among various light emission phenomena, multicolour light emission, such as white light emission, is an interesting phenomenon. Bis-styrylbenzene derivatives show unique and excellent emission behaviours. In this study, three types of bis-styrene derivatives, with thiophene, pyridine, and benzene rings at the central position, were synthesised, and their photophysical properties were studied in detail. Among them, pristine crystals of E,E-2,6-bis(4-cyanostyryl)pyridine (Py4CN) showed a slight bluish-white emission because the Py4CN pristine crystals were mixtures of two separate crystals emitting blue and yellow-green fluorescence. E,E-2,6-Bis(4-cyanostyryl)pyridine pristine crystals showed slightly bluish white emission: these were mixtures of two crystals emitting blue and yellow-green regions. |
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