Localized Surface Plasmon on 6H SiC with Ag Nanoparticles

Yi Wei, Ahmed Fadil, Haiyan Ou

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Silver (Ag) nanoparticles (NPs) were deposited on the surface of bulk Nitrogen-Boron co-doped 6H silicon carbide (SiC), and the Ag NPs were observed to induce localized surface plasmons (LSP) resonances on the SiC substrate, which was expected to improve the internal quantum efficiency (IQE) of the emissions of the donor-acceptor pairs of the SiC substrate. Roomtemperature measurements of photoluminescence (PL), transmittance and time-resolved photoluminescence (TRPL) were applied to characterize the LSP resonances. Through the finitedifference time-domain (FDTD) simulation of the LSP resonance of an Ag nanoparticle on the SiC substrate, it is predicted that when the diameter of the cross section on the xy plane of the Ag nanoparticle is greater than 225 nm, the LSP starts to enhance the PL intensity. With implementation of a 3rd order exponential decay fitting model to the TRPL results, it is found that the average minority carrier lifetime of the SiC substrate decreased.
Original languageEnglish
JournalMaterials Science Forum
Volume897
Pages (from-to)634-637
ISSN0255-5476
DOIs
Publication statusPublished - 2017

Keywords

  • SiC
  • Localized surface plasmon resonance
  • Photoluminescence
  • DAP recombination
  • FDTD simulation
  • Time-resolved photoluminescence
  • Photon lifetime

Cite this

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title = "Localized Surface Plasmon on 6H SiC with Ag Nanoparticles",
abstract = "Silver (Ag) nanoparticles (NPs) were deposited on the surface of bulk Nitrogen-Boron co-doped 6H silicon carbide (SiC), and the Ag NPs were observed to induce localized surface plasmons (LSP) resonances on the SiC substrate, which was expected to improve the internal quantum efficiency (IQE) of the emissions of the donor-acceptor pairs of the SiC substrate. Roomtemperature measurements of photoluminescence (PL), transmittance and time-resolved photoluminescence (TRPL) were applied to characterize the LSP resonances. Through the finitedifference time-domain (FDTD) simulation of the LSP resonance of an Ag nanoparticle on the SiC substrate, it is predicted that when the diameter of the cross section on the xy plane of the Ag nanoparticle is greater than 225 nm, the LSP starts to enhance the PL intensity. With implementation of a 3rd order exponential decay fitting model to the TRPL results, it is found that the average minority carrier lifetime of the SiC substrate decreased.",
keywords = "SiC, Localized surface plasmon resonance, Photoluminescence, DAP recombination, FDTD simulation, Time-resolved photoluminescence, Photon lifetime",
author = "Yi Wei and Ahmed Fadil and Haiyan Ou",
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language = "English",
volume = "897",
pages = "634--637",
journal = "Materials Science Forum",
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Localized Surface Plasmon on 6H SiC with Ag Nanoparticles. / Wei, Yi; Fadil, Ahmed; Ou, Haiyan.

In: Materials Science Forum, Vol. 897, 2017, p. 634-637.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Localized Surface Plasmon on 6H SiC with Ag Nanoparticles

AU - Wei, Yi

AU - Fadil, Ahmed

AU - Ou, Haiyan

PY - 2017

Y1 - 2017

N2 - Silver (Ag) nanoparticles (NPs) were deposited on the surface of bulk Nitrogen-Boron co-doped 6H silicon carbide (SiC), and the Ag NPs were observed to induce localized surface plasmons (LSP) resonances on the SiC substrate, which was expected to improve the internal quantum efficiency (IQE) of the emissions of the donor-acceptor pairs of the SiC substrate. Roomtemperature measurements of photoluminescence (PL), transmittance and time-resolved photoluminescence (TRPL) were applied to characterize the LSP resonances. Through the finitedifference time-domain (FDTD) simulation of the LSP resonance of an Ag nanoparticle on the SiC substrate, it is predicted that when the diameter of the cross section on the xy plane of the Ag nanoparticle is greater than 225 nm, the LSP starts to enhance the PL intensity. With implementation of a 3rd order exponential decay fitting model to the TRPL results, it is found that the average minority carrier lifetime of the SiC substrate decreased.

AB - Silver (Ag) nanoparticles (NPs) were deposited on the surface of bulk Nitrogen-Boron co-doped 6H silicon carbide (SiC), and the Ag NPs were observed to induce localized surface plasmons (LSP) resonances on the SiC substrate, which was expected to improve the internal quantum efficiency (IQE) of the emissions of the donor-acceptor pairs of the SiC substrate. Roomtemperature measurements of photoluminescence (PL), transmittance and time-resolved photoluminescence (TRPL) were applied to characterize the LSP resonances. Through the finitedifference time-domain (FDTD) simulation of the LSP resonance of an Ag nanoparticle on the SiC substrate, it is predicted that when the diameter of the cross section on the xy plane of the Ag nanoparticle is greater than 225 nm, the LSP starts to enhance the PL intensity. With implementation of a 3rd order exponential decay fitting model to the TRPL results, it is found that the average minority carrier lifetime of the SiC substrate decreased.

KW - SiC

KW - Localized surface plasmon resonance

KW - Photoluminescence

KW - DAP recombination

KW - FDTD simulation

KW - Time-resolved photoluminescence

KW - Photon lifetime

U2 - 10.4028/www.scientific.net/MSF.897.634

DO - 10.4028/www.scientific.net/MSF.897.634

M3 - Journal article

VL - 897

SP - 634

EP - 637

JO - Materials Science Forum

JF - Materials Science Forum

SN - 0255-5476

ER -