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Title: Morphology-dependent luminescence from ZnO nanostructures - An X-ray excited optical luminescence study at the Zn K-edge

Abstract

ZnO nanostructures have been synthesized by thermal evaporation on Si substrates. It is found that the morphologies of the nanostructures are governed by growth conditions such as temperature, carrier-gas flow rate, and the nature of the substrate (with and without a catalyst). We report X-ray excited optical luminescence from ZnO nanostructures of distinctly different morphologies in the energy and time domain using excitation photon energies across the Zn K-edge. X-ray excited optical luminescence (XEOL) and X-ray absorption near edge structure (XANES) study has clearly shown the morphology dependence of the ZnO optical properties. A correlation of luminescence with morphology, size, and crystallinity emerges.

Authors:
; ; ; ;  [1]
  1. (
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1005820
Resource Type:
Journal Article
Resource Relation:
Journal Name: Canadian Journal of Chemistry; Journal Volume: 87; Journal Issue: (9) ; 2009
Country of Publication:
United States
Language:
ENGLISH
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; ZINC OXIDES; SYNTHESIS; LUMINESCENCE; MORPHOLOGY; NANOSTRUCTURES

Citation Formats

Lobacheva, Olga, Murphy, Michael W, Ko, Jun Young Peter, Sham, Tsun-Kong, and UWO). Morphology-dependent luminescence from ZnO nanostructures - An X-ray excited optical luminescence study at the Zn K-edge. United States: N. p., 2009. Web. doi:10.1139/V09-115.
Lobacheva, Olga, Murphy, Michael W, Ko, Jun Young Peter, Sham, Tsun-Kong, & UWO). Morphology-dependent luminescence from ZnO nanostructures - An X-ray excited optical luminescence study at the Zn K-edge. United States. doi:10.1139/V09-115.
Lobacheva, Olga, Murphy, Michael W, Ko, Jun Young Peter, Sham, Tsun-Kong, and UWO). 2009. "Morphology-dependent luminescence from ZnO nanostructures - An X-ray excited optical luminescence study at the Zn K-edge". United States. doi:10.1139/V09-115.
@article{osti_1005820,
title = {Morphology-dependent luminescence from ZnO nanostructures - An X-ray excited optical luminescence study at the Zn K-edge},
author = {Lobacheva, Olga and Murphy, Michael W and Ko, Jun Young Peter and Sham, Tsun-Kong and UWO)},
abstractNote = {ZnO nanostructures have been synthesized by thermal evaporation on Si substrates. It is found that the morphologies of the nanostructures are governed by growth conditions such as temperature, carrier-gas flow rate, and the nature of the substrate (with and without a catalyst). We report X-ray excited optical luminescence from ZnO nanostructures of distinctly different morphologies in the energy and time domain using excitation photon energies across the Zn K-edge. X-ray excited optical luminescence (XEOL) and X-ray absorption near edge structure (XANES) study has clearly shown the morphology dependence of the ZnO optical properties. A correlation of luminescence with morphology, size, and crystallinity emerges.},
doi = {10.1139/V09-115},
journal = {Canadian Journal of Chemistry},
number = (9) ; 2009,
volume = 87,
place = {United States},
year = 2009,
month = 8
}