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Title: Optical and RBS studies in Tm implanted ZnO samples
Author: Monteiro, T.
Soares, M.J.
Neves, A.
Oliveira, M.
Rita, E.
Wahl, U.
Alves, E.
Keywords: Photoluminescence (PL) spectroscopy
Room temperature (RT)
Rutherford backscattering/channeling spectroscopy (RBS/C)
Surface barriers
Issue Date: 2004
Publisher: WILEY-VCH Verlag GmbH
Abstract: We report on optical and structural analysis of Tm implanted ZnO [0001] single crystals. The samples were implanted at room temperature with 150 keV Tm+ ions with a nominal fluence of 5×1016 Tm +/cm2 and subsequently air annealed for 30 min at 800°C, 900°C and 950°C. The implantation damage and annealing effects were investigated with Rutherford Backscattering/Channelling Spectroscopy. We observe that following implantation the majority of Tm ions are incorporated on Zn sites. The optical properties of as-implanted and annealed samples have been studied by low temperature photoluminescence measurements. Well defined Tm-related near infrared emission were observed upon above band gap excitation and the data are consistent with the presence of multi Tm-related optical centers.
Peer review: yes
DOI: 10.1002/pssc.200303930
ISSN: 1610-1634
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