Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/30038
Title: Optical properties of titanium dioxide nanoparticles/3-(2-benzothiazolyl)- 7-N, N-diethylaminocoumarin/polymethyl methacrylate composite films
Authors: Wang, H
Tao, X 
Newton, E
Keywords: Nanoparticle composite films
Optical properties
Organic laser dyes
Photoluminescence
Issue Date: 2004
Source: Optical materials, 2004, v. 27, no. 2, p. 161-166 How to cite?
Journal: Optical Materials 
Abstract: 3-(2-benzothiazolyl)-7-N,N-diethylaminocoumarin organic laser dye-polymethyl methacrylate (PMMA) composite films doped with inorganic titanium dioxide (TiO2) particles are fabricated by spin-coating technique. TiO2 nanoparticles exhibit a strong influence on optical properties of the organic laser dye/PMMA composite films. The refractive index and absorbance (absorption intensity) of organic laser dye/PMMA composite film with micro- and nanoparticles of TiO2 are reduced, compared to those without TiO2 particles. The organic laser dye/PMMA composite film with TiO2 nanoparticles has the lowest refractive index and absorbance values. Photoluminescence intensities of all systems exhibit a maximum peak around the excitation wavelength, close to that of the organic laser dye, at 450 nm and the minimum around the excitation wavelength of 350 nm. Photoluminescence intensity of the organic laser dye/PMMA composite film with TiO2 microparticles is always the lowest at all excitation wavelengths. However, the photoluminescence intensity of the organic laser dye/PMMA composite film with TiO2 nanoparticles has the highest value at excitation wavelengths of 330 and 380 nm, while the photoluminescence intensity of composite film without TiO2 particles is more than that with nanoparticles at other excitation wavelengths.
URI: http://hdl.handle.net/10397/30038
ISSN: 0925-3467
DOI: 10.1016/j.optmat.2004.03.008
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

12
Last Week
0
Last month
0
Citations as of Aug 17, 2017

WEB OF SCIENCETM
Citations

12
Last Week
0
Last month
Citations as of Aug 15, 2017

Page view(s)

40
Last Week
1
Last month
Checked on Aug 21, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.