Quantum-confined and tunable optical emission from sub- 10-nm silicon oxide nanowires in aqueous suspension

Z. Y. Zhang; X. L. Wu; J. C. Shen; L. L. Xu; Paul K. Chu

doi:10.1063/1.2806228

Quantum-confined and tunable optical emission from sub- 10-nm silicon oxide nanowires in aqueous suspension

Z. Y. Zhang, X. L. Wu, J. C. Shen, L. L. Xu, Paul K. Chu

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

4 Citations (Scopus)

Abstract

Silicon oxide nanowires (SiONWs) smaller than 10 nm were synthesized by vaporization of Si O2 powders without catalytic assistance. The SiONWs resemble bamboos and the knots comprise Si nanocrystals of different orientations. A SiONW water suspension prepared ultrasonically was subjected to photoluminescence and photoluminescence excitation spectral examinations. Strong blue emission which arises from band-to-band recombination in the quantum confined Si nanocrystals in the knots is observed. Our results show that the emission characteristics can be tuned by adjusting the size of the knots. © 2007 American Institute of Physics.

Original language	English
Article number	193111
Journal	Applied Physics Letters
Volume	91
Issue number	19
DOIs	https://doi.org/10.1063/1.2806228
Publication status	Published - 2007

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@article{176c23f819a340ceb0cf80b27ca48f5f,

title = "Quantum-confined and tunable optical emission from sub- 10-nm silicon oxide nanowires in aqueous suspension",

abstract = "Silicon oxide nanowires (SiONWs) smaller than 10 nm were synthesized by vaporization of Si O2 powders without catalytic assistance. The SiONWs resemble bamboos and the knots comprise Si nanocrystals of different orientations. A SiONW water suspension prepared ultrasonically was subjected to photoluminescence and photoluminescence excitation spectral examinations. Strong blue emission which arises from band-to-band recombination in the quantum confined Si nanocrystals in the knots is observed. Our results show that the emission characteristics can be tuned by adjusting the size of the knots. {\textcopyright} 2007 American Institute of Physics.",

author = "Zhang, {Z. Y.} and Wu, {X. L.} and Shen, {J. C.} and Xu, {L. L.} and Chu, {Paul K.}",

year = "2007",

doi = "10.1063/1.2806228",

language = "English",

volume = "91",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "19",

}

TY - JOUR

T1 - Quantum-confined and tunable optical emission from sub- 10-nm silicon oxide nanowires in aqueous suspension

AU - Zhang, Z. Y.

AU - Wu, X. L.

AU - Shen, J. C.

AU - Xu, L. L.

AU - Chu, Paul K.

PY - 2007

Y1 - 2007

N2 - Silicon oxide nanowires (SiONWs) smaller than 10 nm were synthesized by vaporization of Si O2 powders without catalytic assistance. The SiONWs resemble bamboos and the knots comprise Si nanocrystals of different orientations. A SiONW water suspension prepared ultrasonically was subjected to photoluminescence and photoluminescence excitation spectral examinations. Strong blue emission which arises from band-to-band recombination in the quantum confined Si nanocrystals in the knots is observed. Our results show that the emission characteristics can be tuned by adjusting the size of the knots. © 2007 American Institute of Physics.

AB - Silicon oxide nanowires (SiONWs) smaller than 10 nm were synthesized by vaporization of Si O2 powders without catalytic assistance. The SiONWs resemble bamboos and the knots comprise Si nanocrystals of different orientations. A SiONW water suspension prepared ultrasonically was subjected to photoluminescence and photoluminescence excitation spectral examinations. Strong blue emission which arises from band-to-band recombination in the quantum confined Si nanocrystals in the knots is observed. Our results show that the emission characteristics can be tuned by adjusting the size of the knots. © 2007 American Institute of Physics.

UR - http://www.scopus.com/inward/record.url?scp=36049005380&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-36049005380&origin=recordpage

U2 - 10.1063/1.2806228

DO - 10.1063/1.2806228

M3 - RGC 21 - Publication in refereed journal

SN - 0003-6951

VL - 91

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 19

M1 - 193111

ER -

Quantum-confined and tunable optical emission from sub- 10-nm silicon oxide nanowires in aqueous suspension

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