Quantum dot phosphors and their application to inorganic electroluminescence device

Takahisa Omata, Yuki Tani, Satoshi Kobayashi, Shinya Otsuka-Yao-Matsuo

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

The colloidal semiconductor quantum dots (QDs), as represented by colloidal CdSe QDs, synthesized via a chemical solution route that is termed the hot-soap synthesis are excellent phosphors and are expected to be used in various light emission devices, because of their adjustable emission energy utilizing the quantum size effect and high luminosity. We have recently developed less-toxic and cadmium-free colloidal QDs and a QD-activated electroluminescent (EL) device. In this article, we describe the recent development of the ternary I-III-VI 2 and ZnO colloidal QDs, respectively, for the phosphors used with visible and ultraviolet lights. A thin film fabrication technique from the colloidal QDs and its application to the fabrication of a CdSe QD-activated all-inorganic EL device are introduced.

Original languageEnglish
Pages (from-to)3829-3834
Number of pages6
JournalThin Solid Films
Volume520
Issue number10
DOIs
Publication statusPublished - 2012 Mar 1
Externally publishedYes

Keywords

  • CdSe
  • Colloidal quantum dots
  • CuInS
  • CuInSe
  • Electroluminescence
  • Phosphor
  • Photoluminescence
  • ZnO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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