Photoluminescence and growth mechanism of amorphous silica nanowires by vapor phase transport

Y. Yang; B. K. Tay; X. W. Sun; H. M. Fan; Z. X. Shen

doi:10.1016/j.physe.2005.12.159

Photoluminescence and growth mechanism of amorphous silica nanowires by vapor phase transport

Y. Yang, B. K. Tay, X. W. Sun^*, H. M. Fan, Z. X. Shen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

Amorphous silica [SiO_x (1<x<2)] nanowires were fabricated on silicon substrate in an acidic environment by heating the mixture of ZnCl₂, and VO₂ powders at 1100 °C. The length of SiO_x nanowires ranges from micrometers to centimeters, with uniform diameters of 10-500 nm depending on substrate temperature. Room-temperature photoluminescence spectra of the SiO_x nanowires showed two strong luminescence peaks in the red and green region, respectively. The photoluminescence was suggested to originate from nonbridging oxygen hole center (red band), and hydrogen-related species in the structure of SiO_x (green band). The study on chemical reactions and growth of the SiO_x nanowires revealed the formation process of silica nanowires in acidic environment was closely related to the vapor-solid-liquid mechanism.

Original language	English
Pages (from-to)	218-223
Number of pages	6
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	31
Issue number	2
DOIs	https://doi.org/10.1016/j.physe.2005.12.159
Publication status	Published - Mar 2006
Externally published	Yes

ASJC Scopus Subject Areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

Keywords

Photoluminescence
Silica nanowires
Vapor phase transport

Access to Document

10.1016/j.physe.2005.12.159

Cite this

@article{ef19177f2c084700a32e671f98584f5e,

title = "Photoluminescence and growth mechanism of amorphous silica nanowires by vapor phase transport",

abstract = "Amorphous silica [SiOx (12, and VO2 powders at 1100 °C. The length of SiOx nanowires ranges from micrometers to centimeters, with uniform diameters of 10-500 nm depending on substrate temperature. Room-temperature photoluminescence spectra of the SiOx nanowires showed two strong luminescence peaks in the red and green region, respectively. The photoluminescence was suggested to originate from nonbridging oxygen hole center (red band), and hydrogen-related species in the structure of SiOx (green band). The study on chemical reactions and growth of the SiOx nanowires revealed the formation process of silica nanowires in acidic environment was closely related to the vapor-solid-liquid mechanism.",

keywords = "Photoluminescence, Silica nanowires, Vapor phase transport",

author = "Y. Yang and Tay, {B. K.} and Sun, {X. W.} and Fan, {H. M.} and Shen, {Z. X.}",

year = "2006",

month = mar,

doi = "10.1016/j.physe.2005.12.159",

language = "English",

volume = "31",

pages = "218--223",

journal = "Physica E: Low-Dimensional Systems and Nanostructures",

issn = "1386-9477",

publisher = "Elsevier",

number = "2",

}

TY - JOUR

T1 - Photoluminescence and growth mechanism of amorphous silica nanowires by vapor phase transport

AU - Yang, Y.

AU - Tay, B. K.

AU - Sun, X. W.

AU - Fan, H. M.

AU - Shen, Z. X.

PY - 2006/3

Y1 - 2006/3

N2 - Amorphous silica [SiOx (12, and VO2 powders at 1100 °C. The length of SiOx nanowires ranges from micrometers to centimeters, with uniform diameters of 10-500 nm depending on substrate temperature. Room-temperature photoluminescence spectra of the SiOx nanowires showed two strong luminescence peaks in the red and green region, respectively. The photoluminescence was suggested to originate from nonbridging oxygen hole center (red band), and hydrogen-related species in the structure of SiOx (green band). The study on chemical reactions and growth of the SiOx nanowires revealed the formation process of silica nanowires in acidic environment was closely related to the vapor-solid-liquid mechanism.

AB - Amorphous silica [SiOx (12, and VO2 powders at 1100 °C. The length of SiOx nanowires ranges from micrometers to centimeters, with uniform diameters of 10-500 nm depending on substrate temperature. Room-temperature photoluminescence spectra of the SiOx nanowires showed two strong luminescence peaks in the red and green region, respectively. The photoluminescence was suggested to originate from nonbridging oxygen hole center (red band), and hydrogen-related species in the structure of SiOx (green band). The study on chemical reactions and growth of the SiOx nanowires revealed the formation process of silica nanowires in acidic environment was closely related to the vapor-solid-liquid mechanism.

KW - Photoluminescence

KW - Silica nanowires

KW - Vapor phase transport

UR - http://www.scopus.com/inward/record.url?scp=33644908553&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33644908553&partnerID=8YFLogxK

U2 - 10.1016/j.physe.2005.12.159

DO - 10.1016/j.physe.2005.12.159

M3 - Article

AN - SCOPUS:33644908553

SN - 1386-9477

VL - 31

SP - 218

EP - 223

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 2

ER -

Photoluminescence and growth mechanism of amorphous silica nanowires by vapor phase transport

Abstract

ASJC Scopus Subject Areas

Keywords

Access to Document

Other files and links

Fingerprint

Cite this