Photoregulated fluorescence switching of a photochromic diarylethene bearing fluorine atoms

Hui Li; Shouzhi Pu; Gang Liu; Congbin Fan; Wenjuan Miao

doi:10.1117/12.822480

19 March 2009 Photoregulated fluorescence switching of a photochromic diarylethene bearing fluorine atoms

Hui Li, Shouzhi Pu, Gang Liu, Congbin Fan, Wenjuan Miao

Proceedings Volume 7125, Eighth International Symposium on Optical Storage and 2008 International Workshop on Information Data Storage; 712511 (2009) https://doi.org/10.1117/12.822480
Event: Eighth International Symposium on Optical Storage and 2008 International Workshop on Information Data Storage, 2008, Wuhan, China

Abstract

A symmetrical photochromic diarylethene, 1,2-bis-[2-methyl-5-(2,4-fluorophenyl)-3-thienyl]perfluorocyclopentene (1a), has been synthesized. Its photochemical properties, including photochromic behavior and fluorescent features, have been investigated in detail. The compound showed good photochromism both in solution and in solid state. Especially, the diarylethene exhibited a relatively strong fluorescence switches along with the photochromism from open-ring isomers to closed-ring isomers in solid state. When irradiated by UV light, the photocyclization reaction was occurred and the emission intensity of the diarylethene decreased significantly, due to producing the non-fluorescence closed-ring isomers. The back irradiation by appropriate wavelength visible light regenerated its open-ring isomers and recovered the original emission intensity. The cycles of fluorescence switching can be repeated ca. 10 times and the efficiency of photo-switching almost keeps as same as that of original value. The results demonstrated that the diarylethene can potential act as a system for reversible data processing using fluorescence as the detection method.

Citation Download Citation

Hui Li, Shouzhi Pu, Gang Liu, Congbin Fan, and Wenjuan Miao "Photoregulated fluorescence switching of a photochromic diarylethene bearing fluorine atoms", Proc. SPIE 7125, Eighth International Symposium on Optical Storage and 2008 International Workshop on Information Data Storage, 712511 (19 March 2009); https://doi.org/10.1117/12.822480

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