ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
A new photochromic ZrO2 precursor solution was prepared using zirconium tetra-n-butoxide,4-(phenylazo)benzoic acid and ethyleneglycol monomethylether. The ZrO2 precursor solution wasirradiated with ultraviolet light (UV) at room temperature. After that, UV-irradiated precursorsolution was irradiated with visible light (Vis) at room temperature. UV-Vis spectra were measuredbefore irradiation, after UV irradiation and Vis irradiation. Changes of UV-Vis spectra indicated thatthe new ZrO2 precursor including 4-(phenylazo)benzoic acid shows photochromism. Thephenomena have synchronized with reversible photoisomerization of 4-(phenylazo)benzoic acid inthe precursor. In addition, the difference of peak position originated from Zr-O CT transitionbetween before UV irradiation and after UV irradiation increased with increasing the concentrationof 4-(phenylazo)benzoic acid. Furthermore, the optimized structure of the new ZrO2 precursor wasderived by density functional theory (DFT) calculation
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/51/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.320.175.pdf
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