Cited 4 time in webofscience Cited 4 time in scopus

Studies of Hot Photoluminescence in Plasmonically Coupled Silicon via Variable Energy Excitation and Temperature-Dependent Spectroscopy

Title
Studies of Hot Photoluminescence in Plasmonically Coupled Silicon via Variable Energy Excitation and Temperature-Dependent Spectroscopy
Authors
Aspetti, CO[Aspetti, Carlos O.]Cho, CH[Cho, Chang-Hee]Agarwal, R[Agarwal, Rahul]Agarwal, R[Agarwal, Ritesh]
DGIST Authors
Cho, CH[Cho, Chang-Hee]
Issue Date
2014-09
Citation
Nano Letters, 14(9), 5413-5422
Type
Article
Article Type
Article
Keywords
ChemistryComputer SimulationElectromagnetic RadiationFinite-Difference Time-Domain SimulationsFinite Difference Time Domain MethodHeatHot PhotoluminescenceHot TemperatureLaser ExcitationLuminescenceMetal NanoparticleMetal NanoparticlesMicroscopy, Electron, ScanningMicroscopy, Electron, TransmissionNanotechnologyNanowireNanowiresPhotochemistryPhotoluminescencePhotoluminescence SpectroscopyPhotonicsPlasmonicsPlasmonsProceduresRadiative RecombinationRaman SpectrometryScanning Electron MicroscopySemiconductorSemiconductorsSiliconSpectrophotometrySpectrum Analysis, RamanSurface Plasmon ModesTemperature-Dependent Photoluminescence SpectroscopiesTemperature DependentTime Domain AnalysisTransmission Electron MicroscopyVisible Luminescence
ISSN
1530-6984
Abstract
By integrating silicon nanowires (∼150 nm diameter, 20 μm length) with an ω-shaped plasmonic nanocavity, we are able to generate broadband visible luminescence, which is induced by high order hybrid nanocavity-surface plasmon modes. The nature of this super bandgap emission is explored via photoluminescence spectroscopy studies performed with variable laser excitation energies (1.959 to 2.708 eV) and finite difference time domain simulations. Furthermore, temperature-dependent photoluminescence spectroscopy shows that the observed emission corresponds to radiative recombination of unthermalized (hot) carriers as opposed to a resonant Raman process. © 2014 American Chemical Society.
URI
http://hdl.handle.net/20.500.11750/2380
DOI
10.1021/nl502606q
Publisher
American Chemical Society
Files:
There are no files associated with this item.
Collection:
Emerging Materials ScienceETC1. Journal Articles


qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE