Authors
Jong Won Chung, Seong-Jun Yoon, Byeong-Kwan An, Soo Young Park
Publication date
2013/5/30
Journal
The Journal of Physical Chemistry C
Volume
117
Issue
21
Pages
11285-11291
Publisher
American Chemical Society
Description
Fluorescence switching or modulation of π-conjugated molecules is of great interest in the area of optoelectronic materials science and technology because of their promising applications. However, the “concentration fluorescence quenching” problems commonly associated with conventional π-conjugated molecules in the solid state were occasionally an obstacle to use of π-conjugated molecules in high-contrast memory storage devices. We designed and synthesized a novel class of fluorescence switching π-conjugated molecule, (Z)-CN-MBE, that exhibits a reversible photo/thermal E/Z isomerization process, accompanied by a remarkable fluorescence on/off switching in the solid state. This may provide a promising way to construct high-contrast optical binary memory storage devices. (Z)-CN-MBE is virtually nonfluorescent but exhibits an extraordinary Z to E isomerization upon external light/thermal stimuli …
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