Effect of N(2) and H(2) plasma treatments on band edge emission of ZnO microrods

ZnO microrods were grown by laser assisted flow deposition technique in order to study their luminescence behaviour in the near band edge spectral region. Transmission electron microscopy analysis put in evidence the high crystallinity degree and microrod’s compositional homogeneity. Photoluminescen...

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Autores principales: Rodrigues, Joana, Holz, Tiago, Fath Allah, Rabie, Gonzalez, David, Ben, Teresa, Correia, Maria R., Monteiro, Teresa, Costa, Florinda M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4450596/
https://www.ncbi.nlm.nih.gov/pubmed/26027718
http://dx.doi.org/10.1038/srep10783
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author Rodrigues, Joana
Holz, Tiago
Fath Allah, Rabie
Gonzalez, David
Ben, Teresa
Correia, Maria R.
Monteiro, Teresa
Costa, Florinda M.
author_facet Rodrigues, Joana
Holz, Tiago
Fath Allah, Rabie
Gonzalez, David
Ben, Teresa
Correia, Maria R.
Monteiro, Teresa
Costa, Florinda M.
author_sort Rodrigues, Joana
collection PubMed
description ZnO microrods were grown by laser assisted flow deposition technique in order to study their luminescence behaviour in the near band edge spectral region. Transmission electron microscopy analysis put in evidence the high crystallinity degree and microrod’s compositional homogeneity. Photoluminescence revealed a dominant 3.31 eV emission. The correlation between this emission and the presence of surface states was investigated by performing plasma treatments with hydrogen and nitrogen. The significant modifications in photoluminescence spectra after the plasma treatments suggest a connexion between the 3.31 eV luminescence and the surface related electronic levels.
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spelling pubmed-44505962015-06-10 Effect of N(2) and H(2) plasma treatments on band edge emission of ZnO microrods Rodrigues, Joana Holz, Tiago Fath Allah, Rabie Gonzalez, David Ben, Teresa Correia, Maria R. Monteiro, Teresa Costa, Florinda M. Sci Rep Article ZnO microrods were grown by laser assisted flow deposition technique in order to study their luminescence behaviour in the near band edge spectral region. Transmission electron microscopy analysis put in evidence the high crystallinity degree and microrod’s compositional homogeneity. Photoluminescence revealed a dominant 3.31 eV emission. The correlation between this emission and the presence of surface states was investigated by performing plasma treatments with hydrogen and nitrogen. The significant modifications in photoluminescence spectra after the plasma treatments suggest a connexion between the 3.31 eV luminescence and the surface related electronic levels. Nature Publishing Group 2015-06-01 /pmc/articles/PMC4450596/ /pubmed/26027718 http://dx.doi.org/10.1038/srep10783 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Rodrigues, Joana
Holz, Tiago
Fath Allah, Rabie
Gonzalez, David
Ben, Teresa
Correia, Maria R.
Monteiro, Teresa
Costa, Florinda M.
Effect of N(2) and H(2) plasma treatments on band edge emission of ZnO microrods
title Effect of N(2) and H(2) plasma treatments on band edge emission of ZnO microrods
title_full Effect of N(2) and H(2) plasma treatments on band edge emission of ZnO microrods
title_fullStr Effect of N(2) and H(2) plasma treatments on band edge emission of ZnO microrods
title_full_unstemmed Effect of N(2) and H(2) plasma treatments on band edge emission of ZnO microrods
title_short Effect of N(2) and H(2) plasma treatments on band edge emission of ZnO microrods
title_sort effect of n(2) and h(2) plasma treatments on band edge emission of zno microrods
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4450596/
https://www.ncbi.nlm.nih.gov/pubmed/26027718
http://dx.doi.org/10.1038/srep10783
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