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Publikācija: Decrease of Point Defect Concentration at a Surface of ZnO by Powerful Laser Radiation

Publication Type Conference paper
Funding for basic activity Unknown
Defending: ,
Publication language English (en)
Title in original language Decrease of Point Defect Concentration at a Surface of ZnO by Powerful Laser Radiation
Field of research 1. Natural sciences
Sub-field of research 1.3 Physical sciences
Authors Artūrs Medvids
Pāvels Onufrijevs
Edvīns Daukšta
Tina Trautnitz
Keywords point defect, ZnO, laser radiation
Abstract It was shown the possibility to improve ZnO crystal lattice by powerful Nd:YAG laser radiation. The measurements of photoluminescence (PL) spectra have shown the decrease of PL intensity of defect related band with maximum at 2.4 eV after laser radiation. The control of PL intensity of defect related band was achieved by different laser radiation dose. Morphological studies using atomic forth microscope (AFM) showed smoothing of the surface, as well as, the formation of nanostructures on ZnO/Si sample surface at higher laser radiation dose was detected by scanning electron microscope (SEM).
Reference Medvids, A., Onufrijevs, P., Daukšta, E., Trautnitz, T. Decrease of Point Defect Concentration at a Surface of ZnO by Powerful Laser Radiation. In: The 9th International Conference on Global Research and Education: Inter Academia 2010: Digest, Latvia, Riga, 9-12 August, 2010. Riga: RTU Publishing House, 2010, pp.268-269. ISBN 978-9934-10-046-8.
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