Biological imaging applications using colloidal quantum dots with enhanced photoluminescence intensity

Research output: Contribution to journalJournal articlepeer-review

Abstract

The combination of colloidal quantum dots (QDs) and metals yields plasmonic effects, which is promising for application in bio-imaging. On increasing the contact area between CdSe QDs and gold, the PL enhancement ratio increases because of enhanced coupling between the excitons of CdSe QDs and the surface plasmon fields of gold nanoplates; furthermore, a 1.5 times larger PL enhancement factor is observed. These results indicate the correlation between the surface plasmonic effective areas and enhancement ratio of PL, which can help identify a condition for the maximized enhancement of PL intensity for designing more efficient future bio-imaging devices.

Original languageEnglish
Pages (from-to)92-99
Number of pages8
JournalMolecular Crystals and Liquid Crystals
Volume744
Issue number1
DOIs
StatePublished - 2022

Keywords

  • CdSe quantum dots
  • Gold layers
  • Gold Nanoplates
  • Photoluminescence Enhancement
  • Plasmonic Effects

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science
  • Chemistry
  • Physics & Astronomy

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