Long-range visible fluorescence tunability using component-modulated coupled quantum dots

Sucheta Sengupta, Nirmal Ganguli, I. Dasgupta, D. D. Sarma, Somobrata Acharya

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

A simple route for tailoring emissions in the visible wavelength region by chemically coupling quantum dots composed of ZnSe and CdS is reported. Coupled quantum dots offer a novel route for tuning electronic transitions via band-offset engineering at the material interface. This novel class of asymmetric-coupled quantum structures may offer a basis for a diverse set of building blocks for optoelectronic devices, ultrahigh density memories, and quantum information processing.

Original languageEnglish
Pages (from-to)1998-2003
Number of pages6
JournalAdvanced Materials
Volume23
Issue number17
DOIs
StatePublished - 3 May 2011
Externally publishedYes

Keywords

  • band-offset engineering
  • quantum dots
  • type-II heterojunction
  • visible emission tunability

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

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