Enhancement of 1536 nm emission of Er doped ZnO nanopowder by Ag doping

resumo

Er, Er-Ag and Er-Mg co-doped ZnO nanopowders were prepared by wet chemical precipitation method. The structure and morphology of the prepared samples were studied by XRD and SEM, respectively. The effect of Ag and Mg on visible and IR emission properties of Er doped ZnO nanopowders have been systematically investigated. We found that Mg did not change the visible and IR emission properties of Er doped ZnO nanopowders. But, addition of Ag drastically decreases the visible emission and enhances the IR emission at 1536 nm. (C) 2014 Elsevier B.V. All rights reserved.

palavras-chave

1.54 MU-M; OPTICALLY-ACTIVE CENTER; THIN-FILM; LASER-ABLATION; M PHOTOLUMINESCENCE; LOCAL-STRUCTURE; LUMINESCENCE; SI; TEMPERATURE; SILICON

categoria

Materials Science; Optics

autores

Zamiri, R; Poor, HRB; Rebelo, A; Umar, AA; Ferreira, JMF

nossos autores

agradecimentos

The author Reza Zamiri would like to express his personal thanks to FCT (Fundacaopara a Ciencia e a Tecnologia) for the post-doctoral research grants with reference numbers (SFRH/ BPD/76185/2011). The support from CICECO is also acknowledged.

Partilhe este projeto

Publicações similares

Usamos cookies para atividades de marketing e para lhe oferecer uma melhor experiência de navegação. Ao clicar em “Aceitar Cookies” você concorda com nossa política de cookies. Leia sobre como usamos cookies clicando em "Política de Privacidade e Cookies".