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Title: Photoexcited ZnO nanoparticles with controlled defects as a highly sensitive oxygen sensor

Abstract

Conductance of photoexcited ZnO nanoparticles with various defects has been investigated in oxygen. ZnO nanoparticles, which show strong photoluminescence peaks originating from interstitial zinc atom (Zn{sub i}) and singly charged oxygen vacancy (V{sub O}{sup +}), show oxygen-pressure-dependent conductance changes caused by photoexcitation. Herein, a model is proposed to simulate the conductance changes.

Authors:
;  [1];  [2];  [3];  [4]
  1. Center for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, Osaka 565-0871 (Japan)
  2. Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565 (Japan)
  3. Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, Osaka 565-0871 (Japan)
  4. (Japan)
Publication Date:
OSTI Identifier:
22590605
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 109; Journal Issue: 2; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ATOMS; NANOPARTICLES; OXYGEN; OXYGEN IONS; PEAKS; PHOTOLUMINESCENCE; PRESSURE DEPENDENCE; VACANCIES; ZINC OXIDES

Citation Formats

Goto, Taku, Ito, Tsuyohito, E-mail: tsuyohito@ppl.eng.osaka-u.ac.jp, Shimizu, Yoshiki, Yasuda, Hidehiro, and Research Center for Ultra-High Voltage Electron Microscopy, Osaka University, Osaka 565-0871. Photoexcited ZnO nanoparticles with controlled defects as a highly sensitive oxygen sensor. United States: N. p., 2016. Web. doi:10.1063/1.4958704.
Goto, Taku, Ito, Tsuyohito, E-mail: tsuyohito@ppl.eng.osaka-u.ac.jp, Shimizu, Yoshiki, Yasuda, Hidehiro, & Research Center for Ultra-High Voltage Electron Microscopy, Osaka University, Osaka 565-0871. Photoexcited ZnO nanoparticles with controlled defects as a highly sensitive oxygen sensor. United States. doi:10.1063/1.4958704.
Goto, Taku, Ito, Tsuyohito, E-mail: tsuyohito@ppl.eng.osaka-u.ac.jp, Shimizu, Yoshiki, Yasuda, Hidehiro, and Research Center for Ultra-High Voltage Electron Microscopy, Osaka University, Osaka 565-0871. 2016. "Photoexcited ZnO nanoparticles with controlled defects as a highly sensitive oxygen sensor". United States. doi:10.1063/1.4958704.
@article{osti_22590605,
title = {Photoexcited ZnO nanoparticles with controlled defects as a highly sensitive oxygen sensor},
author = {Goto, Taku and Ito, Tsuyohito, E-mail: tsuyohito@ppl.eng.osaka-u.ac.jp and Shimizu, Yoshiki and Yasuda, Hidehiro and Research Center for Ultra-High Voltage Electron Microscopy, Osaka University, Osaka 565-0871},
abstractNote = {Conductance of photoexcited ZnO nanoparticles with various defects has been investigated in oxygen. ZnO nanoparticles, which show strong photoluminescence peaks originating from interstitial zinc atom (Zn{sub i}) and singly charged oxygen vacancy (V{sub O}{sup +}), show oxygen-pressure-dependent conductance changes caused by photoexcitation. Herein, a model is proposed to simulate the conductance changes.},
doi = {10.1063/1.4958704},
journal = {Applied Physics Letters},
number = 2,
volume = 109,
place = {United States},
year = 2016,
month = 7
}
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