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Title: Fabrication, characterization, cathodoluminescence, and field-emission properties of silica (SiO{sub 2}) nanostructures

Abstract

High-quality one dimensional amorphous SiO{sub 2} nanostructures with different morphologies (nanowires and starfish-like nanostructures) are synthesized through a simple catalysis-free approach and effective thermal evaporation process. The morphologies, microstructures, and compositions of the products are investigated by X-ray powder diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). A promising optical property (cathodoluminescence (CL) in a strong ultraviolet (UV) emission and a weak blue emission at room temperature) was detected in the as-synthesized nanostructures. Field-emission measurements show that the SiO{sub 2} nanostructures may also be a promising FE emitter candidate if we can improve the conductivity and decrease the density of the nanostructures. - Highlights: Black-Right-Pointing-Pointer A simple catalysis-free approach and effective thermal evaporation process Black-Right-Pointing-Pointer High-quality one dimensional amorphous SiO{sub 2} nanostructures Black-Right-Pointing-Pointer A strong ultraviolet (UV) emission and a weak blue emission at room temperature Black-Right-Pointing-Pointer A promising FE emitter's candidate.

Authors:
 [1];  [2]; ;  [3]; ;  [1];  [1]
  1. International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, 305-0044 Ibaraki (Japan)
  2. (China)
  3. Advanced Electronic Materials Center, National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, 305-0044 Ibaraki (Japan)
Publication Date:
OSTI Identifier:
22163146
Resource Type:
Journal Article
Journal Name:
Materials Characterization
Additional Journal Information:
Journal Volume: 73; Journal Issue: Complete; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1044-5803
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CATALYSIS; CATHODOLUMINESCENCE; DENSITY; FABRICATION; FIELD EMISSION; MICROSTRUCTURE; OPTICAL PROPERTIES; QUANTUM WIRES; RAMAN SPECTROSCOPY; SCANNING ELECTRON MICROSCOPY; SILICA; SILICON OXIDES; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION

Citation Formats

Xu, J.Q., Department of Physics Electronic Engineering, Xinyang Normal University, Xinyang 464000, Onodera, H., Sekiguchi, T., Golberg, D., Bando, Y., and Mori, T., E-mail: MORI.Takao@nims.go.jp. Fabrication, characterization, cathodoluminescence, and field-emission properties of silica (SiO{sub 2}) nanostructures. United States: N. p., 2012. Web. doi:10.1016/J.MATCHAR.2012.08.001.
Xu, J.Q., Department of Physics Electronic Engineering, Xinyang Normal University, Xinyang 464000, Onodera, H., Sekiguchi, T., Golberg, D., Bando, Y., & Mori, T., E-mail: MORI.Takao@nims.go.jp. Fabrication, characterization, cathodoluminescence, and field-emission properties of silica (SiO{sub 2}) nanostructures. United States. doi:10.1016/J.MATCHAR.2012.08.001.
Xu, J.Q., Department of Physics Electronic Engineering, Xinyang Normal University, Xinyang 464000, Onodera, H., Sekiguchi, T., Golberg, D., Bando, Y., and Mori, T., E-mail: MORI.Takao@nims.go.jp. Thu . "Fabrication, characterization, cathodoluminescence, and field-emission properties of silica (SiO{sub 2}) nanostructures". United States. doi:10.1016/J.MATCHAR.2012.08.001.
@article{osti_22163146,
title = {Fabrication, characterization, cathodoluminescence, and field-emission properties of silica (SiO{sub 2}) nanostructures},
author = {Xu, J.Q. and Department of Physics Electronic Engineering, Xinyang Normal University, Xinyang 464000 and Onodera, H. and Sekiguchi, T. and Golberg, D. and Bando, Y. and Mori, T., E-mail: MORI.Takao@nims.go.jp},
abstractNote = {High-quality one dimensional amorphous SiO{sub 2} nanostructures with different morphologies (nanowires and starfish-like nanostructures) are synthesized through a simple catalysis-free approach and effective thermal evaporation process. The morphologies, microstructures, and compositions of the products are investigated by X-ray powder diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). A promising optical property (cathodoluminescence (CL) in a strong ultraviolet (UV) emission and a weak blue emission at room temperature) was detected in the as-synthesized nanostructures. Field-emission measurements show that the SiO{sub 2} nanostructures may also be a promising FE emitter candidate if we can improve the conductivity and decrease the density of the nanostructures. - Highlights: Black-Right-Pointing-Pointer A simple catalysis-free approach and effective thermal evaporation process Black-Right-Pointing-Pointer High-quality one dimensional amorphous SiO{sub 2} nanostructures Black-Right-Pointing-Pointer A strong ultraviolet (UV) emission and a weak blue emission at room temperature Black-Right-Pointing-Pointer A promising FE emitter's candidate.},
doi = {10.1016/J.MATCHAR.2012.08.001},
journal = {Materials Characterization},
issn = {1044-5803},
number = Complete,
volume = 73,
place = {United States},
year = {2012},
month = {11}
}