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Title: Effect of photon irradiation on conductivity of nanoscale yttria-doped zirconia thin films

Abstract

The effect of photon irradiation on high temperature conductivity of nanoscale yttria-doped zirconia thin films is reported. Nanoscale films show substantial decrease in total conductivity (as high as {approx}40%) during ultraviolet (UV) irradiation, while the conductivity of bulk single crystals shows negligible changes. The UV induced conductivity changes are rapid and reversible and activation energies for ion migration remain unaffected. The reduction in conductivity may arise from changes in effective oxygen vacancy concentration. Such UV-influenced alteration of electrical properties offers an elegant route to tailor surface catalytic activity of oxygen ion and mixed conductors used in various solid-state devices.

Authors:
;  [1]
  1. Harvard School of Engineering and Applied Sciences, Harvard University, 29 Oxford Street, Cambridge, Massachusetts 02138 (United States)
Publication Date:
OSTI Identifier:
20971859
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 90; Journal Issue: 9; Other Information: DOI: 10.1063/1.2709990; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ACTIVATION ENERGY; CATALYSIS; DOPED MATERIALS; IONIC CONDUCTIVITY; IRRADIATION; MONOCRYSTALS; NANOSTRUCTURES; OXYGEN; OXYGEN IONS; PHOTONS; PHYSICAL RADIATION EFFECTS; THIN FILMS; ULTRAVIOLET RADIATION; VACANCIES; YTTRIUM OXIDES; ZIRCONIUM OXIDES

Citation Formats

Karthikeyan, Annamalai, and Ramanathan, Shriram. Effect of photon irradiation on conductivity of nanoscale yttria-doped zirconia thin films. United States: N. p., 2007. Web. doi:10.1063/1.2709990.
Karthikeyan, Annamalai, & Ramanathan, Shriram. Effect of photon irradiation on conductivity of nanoscale yttria-doped zirconia thin films. United States. doi:10.1063/1.2709990.
Karthikeyan, Annamalai, and Ramanathan, Shriram. Mon . "Effect of photon irradiation on conductivity of nanoscale yttria-doped zirconia thin films". United States. doi:10.1063/1.2709990.
@article{osti_20971859,
title = {Effect of photon irradiation on conductivity of nanoscale yttria-doped zirconia thin films},
author = {Karthikeyan, Annamalai and Ramanathan, Shriram},
abstractNote = {The effect of photon irradiation on high temperature conductivity of nanoscale yttria-doped zirconia thin films is reported. Nanoscale films show substantial decrease in total conductivity (as high as {approx}40%) during ultraviolet (UV) irradiation, while the conductivity of bulk single crystals shows negligible changes. The UV induced conductivity changes are rapid and reversible and activation energies for ion migration remain unaffected. The reduction in conductivity may arise from changes in effective oxygen vacancy concentration. Such UV-influenced alteration of electrical properties offers an elegant route to tailor surface catalytic activity of oxygen ion and mixed conductors used in various solid-state devices.},
doi = {10.1063/1.2709990},
journal = {Applied Physics Letters},
number = 9,
volume = 90,
place = {United States},
year = {Mon Feb 26 00:00:00 EST 2007},
month = {Mon Feb 26 00:00:00 EST 2007}
}