Journal
DYES AND PIGMENTS
Volume 89, Issue 2, Pages 188-192Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2010.09.010
Keywords
Photochromism; Bisthienylethene; Fluorescence; Photoswitching; Pyran-based dye; Optical storage
Funding
- National Natural Science Foundation of China [20802065]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry [2009-1001]
- Zhanjiang Normal University [ZL0803]
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The photoswitching of photochromic bisthienylethene mixed electron donor-it-accepter (2D-pi-A) type fluorescent dye with appropriate doping ratio was constructed, which showed excellent fluorescence switch on and off when the photochromic bisthienylethene undergoes ring-opening and ring-closed photoisomerization with UV and visible-light irradiation in solution and PMMA film. The erasable and rewritable photo-images on the photochromic bisthienylethene mixed 2D-pi-A type fluorescent dye in PMMA were successfully demonstrated, which will provide a simple and viable method for optical data storage based photochromic fluorescent materials. These developments are crucial for fundamental research and eventual technical application for all-photo mode high-density optical data storage. (C) 2010 Elsevier Ltd. All rights reserved.
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