Polarization tunable, multicolor emission from core-shell photonic III-V semiconductor nanowires

Sudha Mokkapati, Dhruv Saxena, Nian Jiang, Patrick Parkinson, Jennifer Wong-Leung, Qiang Gao, Hark Hoe Tan, Chennupati Jagadish

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25 Citations (Scopus)

Abstract

We demonstrate luminescence from both the core and the shell of III-V semiconductor photonic nanowires by coupling them to plasmonic silver nanoparticles. This demonstration paves the way for increasing the quantum efficiency of large surface area nanowire light emitters. The relative emission intensity from the core and the shell is tuned by varying the polarization of the excitation source since their polarization response can be independently controlled. Independent control on emission wavelength and polarization dependence of emission from core-shell nanowire heterostructures opens up opportunities that have not yet been imagined for nanoscale polarization sensitive, wavelength-selective, or multicolor photonic devices based on single nanowires or nanowire arrays.

Original languageEnglish
Pages (from-to)6428-6431
Number of pages4
JournalNano Letters
Volume12
Issue number12
DOIs
Publication statusPublished - 12 Dec 2012
Externally publishedYes

Keywords

  • Core?shell nanowires
  • III?V semiconductor nanowires
  • multicolor emission
  • plasmonic nanoparticles
  • quantum efficiency

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