U.S. Department of EnergyOffice of Scientific and Technical Information
Nanowire growth by an electron beam induced massive phase transformation
Abstract
Tungsten trioxide nanowires of a high aspect ratio have been synthesized in-situ in a TEM under an electron beam of current density 14A/cm² due to a massive polymorphic reaction. Sol-gel processed pseudocubic phase nanocrystals of tungsten trioxide were seen to rapidly transform to one dimensional monoclinic phase configurations, and this reaction was independent of the substrate on which the material was deposited. The mechanism of the self-catalyzed polymorphic transition and accompanying radical shape change is a typical characteristic of metastable to stable phase transformations in nanostructured polymorphic metal oxides. A heuristic model is used to confirm the metastable to stable growth mechanism. The findings are important to the control electron beam deposition of nanowires for functional applications starting from colloidal precursors.
- Authors:
-
- State Univ., of New York, Stony Brook, NY (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1182531
- Report Number(s):
- BNL-107608-2015-JA
Journal ID: ISSN 0002-7820; KC0403020
- Grant/Contract Number:
- SC00112704
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Journal of the American Ceramic Society
- Additional Journal Information:
- Journal Volume: 97; Journal Issue: 12; Journal ID: ISSN 0002-7820
- Publisher:
- American Ceramic Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 77 NANOSCIENCE AND NANOTECHNOLOGY; nanowires; in-situ; TEM; sol-gel; one-dimentional nanostructures; tungsten trioxide
Citation Formats
Sood, Shantanu, Kisslinger, Kim, and Gouma, Perena. Nanowire growth by an electron beam induced massive phase transformation. United States: N. p., 2014.
Web. doi:10.1111/jace.13339.
Sood, Shantanu, Kisslinger, Kim, & Gouma, Perena. Nanowire growth by an electron beam induced massive phase transformation. United States. https://doi.org/10.1111/jace.13339
Sood, Shantanu, Kisslinger, Kim, and Gouma, Perena. 2014.
"Nanowire growth by an electron beam induced massive phase transformation". United States. https://doi.org/10.1111/jace.13339. https://www.osti.gov/servlets/purl/1182531.
@article{osti_1182531,
title = {Nanowire growth by an electron beam induced massive phase transformation},
author = {Sood, Shantanu and Kisslinger, Kim and Gouma, Perena},
abstractNote = {Tungsten trioxide nanowires of a high aspect ratio have been synthesized in-situ in a TEM under an electron beam of current density 14A/cm² due to a massive polymorphic reaction. Sol-gel processed pseudocubic phase nanocrystals of tungsten trioxide were seen to rapidly transform to one dimensional monoclinic phase configurations, and this reaction was independent of the substrate on which the material was deposited. The mechanism of the self-catalyzed polymorphic transition and accompanying radical shape change is a typical characteristic of metastable to stable phase transformations in nanostructured polymorphic metal oxides. A heuristic model is used to confirm the metastable to stable growth mechanism. The findings are important to the control electron beam deposition of nanowires for functional applications starting from colloidal precursors.},
doi = {10.1111/jace.13339},
url = {https://www.osti.gov/biblio/1182531},
journal = {Journal of the American Ceramic Society},
issn = {0002-7820},
number = 12,
volume = 97,
place = {United States},
year = {Sat Nov 15 00:00:00 EST 2014},
month = {Sat Nov 15 00:00:00 EST 2014}
}
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