Linear and nonlinear optical properties of ZnO/PMMA nanocomposite films
J. Appl. Phys. 106, 093102 (2009); doi:10.1063/1.3253745
Published 3 November 2009
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The nanoscale crystals (NCs) of ZnO were embedded into polymethylmethacrylate (PMMA) polymeric matrix and nanocomposite films were prepared by modified spin coating method. The surface of the ZnO/PMMA nanocomposite films has been investigated using atomic force and scanning electron microscopy. The prepared films are highly transparent, the ultraviolet-visible spectra show their high optical quality. The second and third harmonic generation (SHG and THG) studies of ZnO/PMMA nanocomposite films with different concentrations of ZnO NCs were carried out at
=1.064 µm and the effective values of the second and third order nonlinear susceptibilities were estimated to be higher than that of ZnO bulk for the films at low concentration of ZnO NCs. This could indicate that surface effects in ZnO/PMMA nanocomposite films have a dominant role over bulk effects for the SHG and THG processes.
©2009 American Institute of Physics
=1.064 µm and the effective values of the second and third order nonlinear susceptibilities were estimated to be higher than that of ZnO bulk for the films at low concentration of ZnO NCs. This could indicate that surface effects in ZnO/PMMA nanocomposite films have a dominant role over bulk effects for the SHG and THG processes.
©2009 American Institute of Physics
| History: | Received 26 July 2009; accepted 29 September 2009; published 3 November 2009 |
| Permalink: |
http://link.aip.org/link/?JAPIAU/106/093102/1 |
KEYWORDS and PACS
atomic force microscopy,
filled polymers,
II-VI semiconductors,
nanocomposites,
nanotechnology,
nonlinear optical susceptibility,
optical harmonic generation,
polymer films,
scanning electron microscopy,
semiconductor thin films,
spin coating,
ultraviolet spectra,
visible spectra,
wide band gap semiconductors,
zinc compounds
- 78.67.-n
Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures - 81.05.Qk
Reinforced polymers and polymer-based composites: fabrication, treatment, testing and analysis - 81.15.-z
Methods of deposition of films and coatings - 78.40.-q
Absorption and reflection spectra: visible and ultraviolet (condensed matter) - 81.05.Dz
II-VI semiconductors: fabrication, treatment, testing and analysis - 68.55.ag
Semiconductor thin film nucleation and growth - 42.65.An
Nonlinear optical susceptibility, hyperpolarizability - 42.65.Ky
Optical frequency conversion; harmonic generation - 81.16.Ta
Atom manipulation in nanofabrication and processing - 68.55.am
Polymer and organic thin film nucleation and growth - YEAR: 2009
PUBLICATION DATA
0021-8979 (print)
1089-7550 (online)
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