Improvement of CdS Crystallinity by Nd:YAG Laser Radiation
5th International Conference on Radiation Interaction with Materials: Fundamentals and Applications: Program and Materials 2014
Artūrs Medvids, Pāvels Onufrijevs, Rims Janeliukštis, Edvīns Daukšta, José Luis Plaza, Sandra Rubio, Ernesto Diéguez, Natalija Berezovska, Igor Dmitruk

A possibility to improve the quality of polycrystalline CdS thin film by Nd:YAG laser irradiation was shown. The CdS thin film was prepared by closed space sublimation method on ITO/glass structure and irradiated by the 532 nm wavelength laser radiation with intensity up to 15 MW/cm2. Several evidences demonstrated the improvement of the cryatallinity of the CdS thin film after the laser radiation. The improvement was proved by optical methods: the appearance of photoluminescence band at ~2.520 eV, which is attributed to free exciton emission; the appearance of “spike” in the reflection spectrum at ~2.573 eV between upper and lower polariton branches and the increase of the intensity of LO phonon line at 305 cm-1 about 3 times in Raman back scattering spectra. Moreover, the increase by 20% of the size of CdS crystals after laser radiation takes place, which was proved by X-Ray diffraction pattern and using the Scherrer equation.


Atslēgas vārdi
CdS, Crystallinity, Nd:YAG Laser

Medvids, A., Onufrijevs, P., Janeliukštis, R., Daukšta, E., Plaza, J., Rubio, S., Diéguez, E., Berezovska, N., Dmitruk, I. Improvement of CdS Crystallinity by Nd:YAG Laser Radiation. No: 5th International Conference on Radiation Interaction with Materials: Fundamentals and Applications: Program and Materials, Lietuva, Kaunas, 12.-15. maijs, 2014. Kaunas: Kaunas University of Technology, 2014, 83.-86.lpp.

Publikācijas valoda
English (en)
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