Light emission and excitonic effect of boron nitride nanotubes observed by photoluminescent spectra

Hua Chen; Ying Chen; Yun Liu; Chao Nan Xu; Jim S. Williams

doi:10.1016/j.optmat.2006.05.006

Light emission and excitonic effect of boron nitride nanotubes observed by photoluminescent spectra

Hua Chen, Ying Chen, Yun Liu^*, Chao Nan Xu, Jim S. Williams

^*Corresponding author for this work

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

48 Citations (Scopus)

Abstract

Photoluminescent (PL) and optical absorption spectra of high-yield multi-wall BN nanotubes (BNNTs) were systematically investigated at room temperature in comparison with commercial hexagonal BN (h-BN) powder. The direct band gap of the BNNTs was determined to be 5.75 eV, just slightly narrower than that of h-BN powder (5.82 eV). Two Frenkel excitons with the binding energy of 1.27 and 1.35 eV were also determined. However, they were not a distinctive characteristic of the BNNTs as reported previously. Observed broad UV-visible-NIR light emission demonstrates the potential of the BNNTs as a nano light source.

Original language	English
Pages (from-to)	1295-1298
Number of pages	4
Journal	Optical Materials
Volume	29
Issue number	11
DOIs	https://doi.org/10.1016/j.optmat.2006.05.006
Publication status	Published - Jul 2007

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10.1016/j.optmat.2006.05.006

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title = "Light emission and excitonic effect of boron nitride nanotubes observed by photoluminescent spectra",

abstract = "Photoluminescent (PL) and optical absorption spectra of high-yield multi-wall BN nanotubes (BNNTs) were systematically investigated at room temperature in comparison with commercial hexagonal BN (h-BN) powder. The direct band gap of the BNNTs was determined to be 5.75 eV, just slightly narrower than that of h-BN powder (5.82 eV). Two Frenkel excitons with the binding energy of 1.27 and 1.35 eV were also determined. However, they were not a distinctive characteristic of the BNNTs as reported previously. Observed broad UV-visible-NIR light emission demonstrates the potential of the BNNTs as a nano light source.",

keywords = "Boron nitride, Exciton, Nanotube, Optical absorption, Photoluminescence",

author = "Hua Chen and Ying Chen and Yun Liu and Xu, {Chao Nan} and Williams, {Jim S.}",

year = "2007",

month = jul,

doi = "10.1016/j.optmat.2006.05.006",

language = "English",

volume = "29",

pages = "1295--1298",

journal = "Optical Materials",

issn = "0925-3467",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Light emission and excitonic effect of boron nitride nanotubes observed by photoluminescent spectra

AU - Chen, Hua

AU - Chen, Ying

AU - Liu, Yun

AU - Xu, Chao Nan

AU - Williams, Jim S.

PY - 2007/7

Y1 - 2007/7

N2 - Photoluminescent (PL) and optical absorption spectra of high-yield multi-wall BN nanotubes (BNNTs) were systematically investigated at room temperature in comparison with commercial hexagonal BN (h-BN) powder. The direct band gap of the BNNTs was determined to be 5.75 eV, just slightly narrower than that of h-BN powder (5.82 eV). Two Frenkel excitons with the binding energy of 1.27 and 1.35 eV were also determined. However, they were not a distinctive characteristic of the BNNTs as reported previously. Observed broad UV-visible-NIR light emission demonstrates the potential of the BNNTs as a nano light source.

AB - Photoluminescent (PL) and optical absorption spectra of high-yield multi-wall BN nanotubes (BNNTs) were systematically investigated at room temperature in comparison with commercial hexagonal BN (h-BN) powder. The direct band gap of the BNNTs was determined to be 5.75 eV, just slightly narrower than that of h-BN powder (5.82 eV). Two Frenkel excitons with the binding energy of 1.27 and 1.35 eV were also determined. However, they were not a distinctive characteristic of the BNNTs as reported previously. Observed broad UV-visible-NIR light emission demonstrates the potential of the BNNTs as a nano light source.

KW - Boron nitride

KW - Exciton

KW - Nanotube

KW - Optical absorption

KW - Photoluminescence

UR - http://www.scopus.com/inward/record.url?scp=34248532583&partnerID=8YFLogxK

U2 - 10.1016/j.optmat.2006.05.006

DO - 10.1016/j.optmat.2006.05.006

M3 - Article

SN - 0925-3467

VL - 29

SP - 1295

EP - 1298

JO - Optical Materials

JF - Optical Materials

IS - 11

ER -

Light emission and excitonic effect of boron nitride nanotubes observed by photoluminescent spectra

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