Enhanced emission from Si-based light-emitting diodes using surface plasmons

S. Pillai*, K. R. Catchpole, T. Trupke, G. Zhang, J. Zhao, M. A. Green

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

239 Citations (Scopus)


Excitation of surface plasmons on metallic nanoparticles has potential for increasing the absorption and emission from thin Si devices. We report an eight-fold enhancement in electroluminescence from silicon-on-insulator light-emitting diodes at 900 nm via excitation of surface plasmon resonance in silver nanoparticles, along with a redshift in the electroluminescence by 70 nm by overcoating the nanoparticles with ZnS. The enhancement is due to coupling between the electromagnetic excitations of the silver nanoparticles and the waveguide modes.

Original languageEnglish
Article number161102
Number of pages3
JournalApplied Physics Letters
Issue number16
Publication statusPublished - 17 Apr 2006
Externally publishedYes


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