Two-color size-tunable (1100 - 1600 nm) quantum dot nanocrystal electroluminescent devices

Ludmila Bakueva*, Gerasimos Konstantatos, Larissa Levina, Edward H. Sargent

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Light-emitting structures containing PbS nanocrystals of two different sizes were fabricated and investigated. They demonstrate light emission in two distinct infrared frequency bands, or alternatively across a wide frequency band, each in the spectral region 1.1 - 1.6 μm. For two-color structures the relative intensity of peaks can be varied in a wide interval depending on the conditions of excitation. The intensity of electroluminescence reached values corresponding to internal efficiency up to 3.1%.

Original languageEnglish (US)
Title of host publication2004 4th IEEE Conference on Nanotechnology
Pages16-18
Number of pages3
StatePublished - 2004
Event2004 4th IEEE Conference on Nanotechnology - Munich, Germany
Duration: Aug 16 2004Aug 19 2004

Publication series

Name2004 4th IEEE Conference on Nanotechnology

Other

Other2004 4th IEEE Conference on Nanotechnology
Country/TerritoryGermany
CityMunich
Period8/16/048/19/04

Keywords

  • Conducting polymers
  • Infrared radiation
  • Light emission
  • Nanocrystals
  • PbS
  • Quantum dots
  • Spectral tayloring

ASJC Scopus subject areas

  • General Engineering

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