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Title: In situ observation of the formation of hollow zinc oxide shells

Abstract

Single crystal zinc particles, 1–2 μm1–2 μm in diameter, were observed in situ with transmission electron microscopy during sublimation. The rate of sublimation is strongly dependent on the presence of a surface oxide layer. Near 375°, minimally oxidized Zn surfaces sublime in tens of seconds, consistent with a model in which the particle behaves similarly to an isolated microscale effusion cell. By contrast, zinc particles fully enclosed by oxide sublime less than one-tenth as quickly. Here these results provide new insight into the synthesis mechanisms of hollow ZnO microspheres and related structures formed from metallic zinc at elevated temperatures.

Authors:
 [1];  [1];  [1];  [2];  [1]
  1. Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA
  2. Epimedia, Inc., 42 Norman Ct, Walnut Creek, California 94595, USA
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1114983
Alternate Identifier(s):
OSTI ID: 1376042
Report Number(s):
LLNL-JRNL-418838
Journal ID: ISSN 0003-6951
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Published Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Name: Applied Physics Letters Journal Volume: 98 Journal Issue: 24; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Tringe, J. W., Levie, H. W., El-Dasher, B. S., Swift, R., and Wall, M. A. In situ observation of the formation of hollow zinc oxide shells. United States: N. p., 2011. Web. doi:10.1063/1.3598436.
Tringe, J. W., Levie, H. W., El-Dasher, B. S., Swift, R., & Wall, M. A. In situ observation of the formation of hollow zinc oxide shells. United States. doi:10.1063/1.3598436.
Tringe, J. W., Levie, H. W., El-Dasher, B. S., Swift, R., and Wall, M. A. Mon . "In situ observation of the formation of hollow zinc oxide shells". United States. doi:10.1063/1.3598436.
@article{osti_1114983,
title = {In situ observation of the formation of hollow zinc oxide shells},
author = {Tringe, J. W. and Levie, H. W. and El-Dasher, B. S. and Swift, R. and Wall, M. A.},
abstractNote = {Single crystal zinc particles, 1–2 μm1–2 μm in diameter, were observed in situ with transmission electron microscopy during sublimation. The rate of sublimation is strongly dependent on the presence of a surface oxide layer. Near 375°, minimally oxidized Zn surfaces sublime in tens of seconds, consistent with a model in which the particle behaves similarly to an isolated microscale effusion cell. By contrast, zinc particles fully enclosed by oxide sublime less than one-tenth as quickly. Here these results provide new insight into the synthesis mechanisms of hollow ZnO microspheres and related structures formed from metallic zinc at elevated temperatures.},
doi = {10.1063/1.3598436},
journal = {Applied Physics Letters},
number = 24,
volume = 98,
place = {United States},
year = {2011},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1063/1.3598436

Citation Metrics:
Cited by: 1 work
Citation information provided by
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    Works referencing / citing this record:

    Enhanced Raman scattering and nonlinear conductivity in Ag-doped hollow ZnO microspheres
    journal, August 2012