Please use this identifier to cite or link to this item:
|Title:||Synthesis, characterization, and nonlinear optical properties of hybridized CdS-polystyrene nanocomposites|
|Source:||Du, H., Xu, G.Q., Chin, W.S., Huang, L., Ji, W. (2002-10-01). Synthesis, characterization, and nonlinear optical properties of hybridized CdS-polystyrene nanocomposites. Chemistry of Materials 14 (10) : 4473-4479. ScholarBank@NUS Repository. https://doi.org/10.1021/cm010622z|
|Abstract:||Hybrid composites of CdS nanoparticles embedded in sulfonated polystyrene (PS) matrixes have been prepared and characterized. The -SO3 - groups acted as the coordination sites for cadmium ion aggregations and nanosized CdS particles were successfully grown in situ at these sites with the release of S2- ions from thioacetamide. The density and size of the nanoparticles were found to be a function of the sulfonate content of PS and the concentration of Cd2+ feed ions used. Ionic clusterings within the polymer matrix occurred at a sulfonate content of 9.9 mol % and has provided a confined medium for particle growth in uniform size. The optical properties of the prepared CdS-PS hybrid composites were characterized by linear absorption and fluorescence spectra. Z-scan measurement was also employed to investigate the nonlinear optical properties at a wavelength of 532 nm. The results showed that the nonlinear refractive index of the composite varies with the input irradiance, thus indicating not just third-order but possible higher order nonlinearity.|
|Source Title:||Chemistry of Materials|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 21, 2018
WEB OF SCIENCETM
checked on Jan 16, 2018
checked on Feb 18, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.