Details:

Alternative Title:
Nano Lett
Publisher's site:
http://dx.doi.org/10.1021/nl502606q
Personal Author:
Aspetti, Carlos O. ; Cho, Chang-Hee ; Agarwal, Rahul ; Agarwal, Ritesh ;
Aspetti, Carlos O. ; Cho, Chang-Hee ; Agarwal, Rahul ; Agarwal, Ritesh ; Less -
Description:
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.
Subject:
[+]
Computer Simulation
Electromagnetic Radiation
Hot Temperature
Letter
Luminescence
Metal Nanoparticles
Microscopy, Electron, Scanning
Microscopy, Electron, Transmission
Nanotechnology
Nanowires
Photochemistry
Photonics
Plasmonics
Semiconductors
Silicon
Spectrophotometry
Spectrum Analysis, Raman
Luminescence

Source:
Nano Lett. 2014 ; 14(9):5413-5422.;
Pubmed ID:
25120156
Pubmed Central ID:
PMC4160267
Document Type:
Journal Article ;
Funding:
1-DP2-7251-01/DP/NCCDPHP CDC HHS/United States ; DP2 OD007251/OD/NIH HHS/United States ;
1-DP2-7251-01/DP/NCCDPHP CDC HHS/United States ; DP2 OD007251/OD/NIH HHS/United States ; Less -
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:5a48de94692fb16be55acaf6614a9205233f6a1c6468d50b9c41461bb19036bc
File Type:

Supporting Files

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