Synthesis of ZnO nanocrystals by subsequent implantationof Zn and O species

We report the preparation of ZnO nanocrystals embedded in a Si O 2 matrix formed using sequential zinc and oxygen ion implantations. The optical absorption spectra and photoemission spectra of zinc implanted and zinc/oxygen coimplanted silica show that the first zinc implantation produces zinc clust...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters 2005-04, Vol.86 (18), p.183111-183111-3
Main Authors: Lee, J. K., Tewell, C. R., Schulze, R. K., Nastasi, M., Hamby, D. W., Lucca, D. A., Jung, H. S., Hong, K. S.
Format: Article
Language:
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We report the preparation of ZnO nanocrystals embedded in a Si O 2 matrix formed using sequential zinc and oxygen ion implantations. The optical absorption spectra and photoemission spectra of zinc implanted and zinc/oxygen coimplanted silica show that the first zinc implantation produces zinc clusters and that the subsequent oxygen implantation following the zinc implantation rearranges the distribution of zinc and oxygen ions at an atomic level. While thermal annealing of Zn only implanted silica leads to the formation of Zn nanocrystals, thermal annealing of zinc/oxygen coimplanted silica promotes the growth of ZnO nanocrystals. The absorption and photoluminescence spectra show that ZnO nanocrystals form in an amorphous Si O 2 matrix and that their systematic change as a function of annealing temperature corresponds to the typical correlation between the increase of particle size and a redshift in near-band-edge emission.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1906304