Fluorescence patterning through photoinduced migration of squaraine-functionalized azo derivatives

New photochromic and fluorescent dyes are formed by covalently attaching emissive squaraine units to azo moieties. Illumination of doped matrices by light interference fringes provokes the reversible migration of the dyes and the formation of fluorescent gratings, as shown schematically in the figure. The visualization of the gratings is performed by using fluorescence confocal microscopy.

Mots clés

SURFACE-RELIEF GRATINGS ELECTRON-TRANSFER DYES CHEMISTRY PHOTOPHYSICS AZOBENZENE MECHANISM EMISSION POLYMERS

Domaines

Chimie théorique et/ou physique Matériaux

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https://hal.science/hal-00169021

Soumis le : vendredi 31 août 2007-11:21:49

Dernière modification le : lundi 27 mai 2024-15:20:14

Dates et versions

hal-00169021 , version 1 (31-08-2007)

Identifiants

HAL Id : hal-00169021 , version 1
DOI : 10.1002/adma.200601695

Citer

Li-Hong Liu, Keitaro Nakatani, Robert Bernard Pansu, Jean-Jacques Vachon, Patrick Tauc, et al.. Fluorescence patterning through photoinduced migration of squaraine-functionalized azo derivatives. Advanced Materials, 2007, 19 (3), pp.433-436. ⟨10.1002/adma.200601695⟩. ⟨hal-00169021⟩

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