Back to Search
Start Over
Design and photoinduced surface relief grating formation of photoresponsive azobenzene based molecular materials with ruthenium acetylides
- Source :
- Journal of Materials Chemistry, Journal of Materials Chemistry, Royal Society of Chemistry, 2010, 20, pp.2858-2864. ⟨10.1039/B921450J⟩, Journal of Materials Chemistry, 2010, 20, pp.2858-2864. ⟨10.1039/B921450J⟩
- Publication Year :
- 2010
- Publisher :
- HAL CCSD, 2010.
-
Abstract
- International audience; Novel photoresponsive materials based on ruthenium(II) σ-acetylides coupled to an azobenzene moiety in the main π-conjugated chain have been synthesized. The introduction of a metal acetylide fragment in the same conjugated chain as the azobenzene induces the trans-cis-trans isomerization of the azo unit, while the rate of the thermal cis → trans back isomerization increases with increasing overall electron richness of these compounds. These azobenzene-containing ruthenium(II) acetylides show satisfactory processability and give rise to spin-coated uniform thin films. Formation of surface-relief gratings on their amorphous thin films and in a PMMA polymer matrix using a picosecond pulsed laser at 532 nm results in instantaneous inscription: saturation of the first order diffraction efficiency and of the modulation amplitude of gratings were obtained in less than 1 s, while the orientation of these azodyes remains unchanged for up to 6 months.
- Subjects :
- Materials science
Acetylide
chemistry.chemical_element
02 engineering and technology
General Chemistry
[CHIM.CATA]Chemical Sciences/Catalysis
[CHIM.MATE]Chemical Sciences/Material chemistry
Conjugated system
010402 general chemistry
021001 nanoscience & nanotechnology
Photochemistry
Diffraction efficiency
01 natural sciences
0104 chemical sciences
Amorphous solid
Ruthenium
chemistry.chemical_compound
Azobenzene
chemistry
ddc:540
Materials Chemistry
Thin film
0210 nano-technology
Isomerization
Subjects
Details
- Language :
- English
- ISSN :
- 09599428 and 13645501
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Chemistry, Journal of Materials Chemistry, Royal Society of Chemistry, 2010, 20, pp.2858-2864. ⟨10.1039/B921450J⟩, Journal of Materials Chemistry, 2010, 20, pp.2858-2864. ⟨10.1039/B921450J⟩
- Accession number :
- edsair.doi.dedup.....7aef4da177661fbc82b0df60f158693b