Electric field quenching of single-walled carbon nanotube photoluminescence

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dc.contributor.advisorWeisman, R Bruceen_US
dc.creatorNaumov, Anton Viatcheslavovichen_US
dc.date.accessioned2018-12-03T18:31:56Zen_US
dc.date.available2018-12-03T18:31:56Zen_US
dc.date.issued2008en_US
dc.description.abstractThe 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.en_US
dc.format.extent60 ppen_US
dc.identifier.callnoTHESIS PHYS. 2008 NAUMOVen_US
dc.identifier.citationNaumov, Anton Viatcheslavovich. "Electric field quenching of single-walled carbon nanotube photoluminescence." (2008) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/103623">https://hdl.handle.net/1911/103623</a>.en_US
dc.identifier.digital304522225en_US
dc.identifier.urihttps://hdl.handle.net/1911/103623en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjectChemistryen_US
dc.subjectMoleculesen_US
dc.subjectCondensationen_US
dc.subjectPure sciencesen_US
dc.titleElectric field quenching of single-walled carbon nanotube photoluminescenceen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentPhysicsen_US
thesis.degree.disciplineNatural Sciencesen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Scienceen_US
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