Optical phonon confinement in zinc oxide nanoparticles
Top Cited Papers
- 1 March 2000
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 87 (5) , 2445-2448
- https://doi.org/10.1063/1.372199
Abstract
Effect of confinement is investigated on optical phonons of different symmetries in the nanoparticles of zinc oxide with wurtzite structure using Raman spectroscopy. An optical phonon confinement model is used for calculating the theoretical line shapes, which exhibit different asymmetric broadening and shifts, depending on the symmetries of phonon and their dispersion curves. The best fit to the data is found for particle diameters consistent with those estimated using x-ray diffraction.Keywords
This publication has 26 references indexed in Scilit:
- Vibrational spectra of selenium nanoparticles dispersed in a polymerNanostructured Materials, 1999
- The effect of annealing on the properties of nanoparticles dispersed in oxide glass containing ZnJournal of Physics: Condensed Matter, 1997
- ZnO nanoparticles embedded in polymeric matricesNanostructured Materials, 1996
- Semiconductor Clusters, Nanocrystals, and Quantum DotsScience, 1996
- Three-dimensional phonon confinement in CdSe microcrystallites in glassSemiconductor Science and Technology, 1995
- Theory of the quantum confinement effect on excitons in quantum dots of indirect-gap materialsPhysical Review B, 1992
- Photophysics and photochemistry of quantized zinc oxide colloidsThe Journal of Physical Chemistry, 1992
- Semiconductor clusters in the sol-gel process: quantized aggregation, gelation, and crystal growth in concentrated zinc oxide colloidsJournal of the American Chemical Society, 1991
- Resonance Raman scattering by LO phonons in Te at the + gapPhysical Review B, 1985
- Transmission Spectra of ZnO Single CrystalsPhysical Review Letters, 1968