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Electric field quenching of single-w...

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Electric field quenching of single-walled carbon nanotube photoluminescence.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Electric field quenching of single-walled carbon nanotube photoluminescence./
Author:	Naumov, Anton Viatcheslavovich.
Description:	51 p.
Notes:	Adviser: R Bruce Weisman.
Contained By:	Masters Abstracts International46-06.
Subject:	Chemistry, Physical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1455268
ISBN:	9780549579113

Electric field quenching of single-walled carbon nanotube photoluminescence.
Naumov, Anton Viatcheslavovich.

Electric field quenching of single-walled carbon nanotube photoluminescence. - 51 p.

Adviser: R Bruce Weisman.

Thesis (M.S.)--Rice University, 2008.

The effect of an electric field on the photoluminescence of single-walled carbon nanotubes was investigated. Individual SWNTs embedded in polymeric film were deposited on microscope slides with electrodes. The fluorescence intensity and spectra of single semiconducting SWNTs were acquired. When SWNTs in polymer were subjected to electric fields of up to 10 7 V/m, a drastic decrease in their fluorescence intensity was observed. The effect was reversible and reproducible. SWNT fluorescence intensity was well approximated by inverse hyperbolic cosine of the electric field, with a single quenching parameter k. It was shown that the effect was induced by the electric field parallel to SWNT axis while the perpendicular component did not produce detectable quenching. The quenching process was found to be enhanced for long nanotubes. Bulk sample fluorescence studies indicated that the electric field quenching also becomes stronger with the decrease in bandgap energy. Potential theoretical models will be discussed.

ISBN: 9780549579113Subjects--Topical Terms:

560527
Chemistry, Physical.

Electric field quenching of single-walled carbon nanotube photoluminescence.
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020 $a 9780549579113
035 $a (UMI)AAI1455268
035 $a AAI1455268
040 $a UMI $c UMI
100 1 $a Naumov, Anton Viatcheslavovich. $3 1030832
245 1 0 $a Electric field quenching of single-walled carbon nanotube photoluminescence.
300 $a 51 p.
500 $a Adviser: R Bruce Weisman.
500 $a Source: Masters Abstracts International, Volume: 46-06, page: 3287.
502 $a Thesis (M.S.)--Rice University, 2008.
520 $a The effect of an electric field on the photoluminescence of single-walled carbon nanotubes was investigated. Individual SWNTs embedded in polymeric film were deposited on microscope slides with electrodes. The fluorescence intensity and spectra of single semiconducting SWNTs were acquired. When SWNTs in polymer were subjected to electric fields of up to 10 7 V/m, a drastic decrease in their fluorescence intensity was observed. The effect was reversible and reproducible. SWNT fluorescence intensity was well approximated by inverse hyperbolic cosine of the electric field, with a single quenching parameter k. It was shown that the effect was induced by the electric field parallel to SWNT axis while the perpendicular component did not produce detectable quenching. The quenching process was found to be enhanced for long nanotubes. Bulk sample fluorescence studies indicated that the electric field quenching also becomes stronger with the decrease in bandgap energy. Potential theoretical models will be discussed.
590 $a School code: 0187.
650 4 $a Chemistry, Physical. $3 560527
650 4 $a Physics, Condensed Matter. $3 1018743
650 4 $a Physics, Molecular. $3 1018648
690 $a 0494
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710 2 $a Rice University. $3 960124
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791 $a M.S.
792 $a 2008
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1455268