2015
Dynamic and Steady State Optical Studies of Individual Covalent Dopant Sites in Single-Wall Carbon Nanotubes
Hartmann N, Yalcin S, Haroz E, Ma X, Htoon H, Doorn S. Dynamic and Steady State Optical Studies of Individual Covalent Dopant Sites in Single-Wall Carbon Nanotubes. ECS Meeting Abstracts 2015, MA2015-01: 805-805. DOI: 10.1149/ma2015-01/6/805.Peer-Reviewed Original ResearchSingle-wall carbon nanotubesDopant sitesCarbon nanotubesUse of SWCNTsLight-harvesting systemsWall carbon nanotubesPhotoluminescence quantum yieldAssociated functional groupsType of dopantCovalent functionalizationNon-radiative decay channelsFunctional groupsChem.Electronic structureLow-temperature studiesQuantum yieldChemical propertiesEfficient emittersEmitting statesLong PL lifetimeOptical propertiesLong single-wall carbon nanotubesDynamic optical propertiesSingle-tube levelEmission intensityBench-top aqueous two-phase extraction of isolated individual single-walled carbon nanotubes
Subbaiyan N, Parra-Vasquez A, Cambré S, Cordoba M, Yalcin S, Hamilton C, Mack N, Blackburn J, Doorn S, Duque J. Bench-top aqueous two-phase extraction of isolated individual single-walled carbon nanotubes. Nano Research 2015, 8: 1755-1769. DOI: 10.1007/s12274-014-0680-z.Peer-Reviewed Original ResearchSingle-walled carbon nanotubesCarbon nanotubesIndividual single-walled carbon nanotubesPristine single-walled carbon nanotubesHigh-performance devicesTransmission electron microscopyIsolated single-walled carbon nanotubesBench-top approachNanotube researchHigh-end instrumentationSWCNT materialAtomic forceElectron microscopyTwo-phase extractionAqueous dispersionsDefect densityNanotubesTwo-phase separationHigh purityFluorescence imagingThermogravimetric analysisFundamental studiesApplicationsATP methodDispersion
2014
Electronic Structure and Chemical Nature of Oxygen Dopant States in Carbon Nanotubes
Ma X, Adamska L, Yamaguchi H, Yalcin SE, Tretiak S, Doorn SK, Htoon H. Electronic Structure and Chemical Nature of Oxygen Dopant States in Carbon Nanotubes. ACS Nano 2014, 8: 10782-10789. PMID: 25265272, DOI: 10.1021/nn504553y.Peer-Reviewed Original ResearchSingle-walled carbon nanotubesCarbon nanotubesOxygen-doped single-walled carbon nanotubesEmission peakElectronic structure simulationsLocal dielectric environmentChemical adductsDeep trap statesChemical natureAsymmetric emission peaksElectronic structureE11 excitonNanotubesOxygen dopingSingle nanotubePhotoluminescence studiesDopant statesDielectric environmentTemperature photoluminescence studiesAdductsTrap statesStructure simulationsBright exciton peakSpectral featuresEnergy splittingInvited Presentation: Photoluminescence Imaging Probes of Contrasting 1-D and 0-D Exciton Behavior in Doped Carbon Nanotubes
Doorn S, Yamaguchi H, Yalcin S, Ma X, Htoon H. Invited Presentation: Photoluminescence Imaging Probes of Contrasting 1-D and 0-D Exciton Behavior in Doped Carbon Nanotubes. ECS Meeting Abstracts 2014, MA2014-01: 1176-1176. DOI: 10.1149/ma2014-01/30/1176.Peer-Reviewed Original Research