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Influences of CO2 laser irradiation on the structure and photoluminescence of zinc oxide thin films
- Source :
-
Thin Solid Films . Aug2005, Vol. 485 Issue 1/2, p262-266. 5p. - Publication Year :
- 2005
-
Abstract
- Abstract: CO2 laser irradiation experiments on ZnO thin films are reported. The structural, optical, luminescent and vibrational properties of the samples were investigated by X-ray diffraction (XRD), transmittance, photoluminescence (PL) and Raman measurements. XRD results show that the crystalline of the irradiated films was improved. The (002) peaks of irradiated ZnO films shift to higher 2θ angles due to the stress relaxation in the case of laser beam irradiation. From optical transmittance spectra, all films exhibit high transmittance in the visible range, the optical band edge of irradiated films showed a redshift compared with that of as-grown films. Compared with the as-grown films, the photoluminescence emission (in particular the relative intensities of visible emissions) intensities of irradiated samples enhanced. In the Raman scattering spectra, both the A1 and E2 modes exhibited slight Raman blueshift. [Copyright &y& Elsevier]
- Subjects :
- *THIN films
*FILMSTRIPS
*SURFACES (Technology)
*ZINC compounds
Subjects
Details
- Language :
- English
- ISSN :
- 00406090
- Volume :
- 485
- Issue :
- 1/2
- Database :
- Academic Search Index
- Journal :
- Thin Solid Films
- Publication Type :
- Academic Journal
- Accession number :
- 18092239
- Full Text :
- https://doi.org/10.1016/j.tsf.2005.03.012