Colloidal Zn(Te,Se)/ZnS Core/Shell Quantum Dots Exhibiting Narrow-Band and Green Photoluminescence

Hiroshi Asano, Satoshi Tsukuda, Masao Kita, Shinji Fujimoto, Takahisa Omata

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Colloidal CdSe quantum dot (QD) phosphors have attracted considerable attention as green and red phosphors for blue backlight downconversion in next-generation liquid-crystal displays because of their excellent emission features including tunable emission wavelength and narrow emission bands. Alternatives to CdSe, which do not contain toxic cadmium, are strongly desired to ensure safety and reduce the environmental load of consumer products. Herein, we synthesized colloidal Zn(Te,Se)/ZnS core/shell QDs and demonstrated narrow-band green photoluminescence (PL) emission. A full width at half-maximum of 30 nm was achieved for PL emission at 535 nm from Zn(Te0.77Se0.23)/ZnS core/shell QDs with a core QD diameter of 4.3 nm. This emission characteristic was as good as that of CdSe QDs.

Original languageEnglish
Pages (from-to)6703-6709
Number of pages7
JournalACS Omega
Volume3
Issue number6
DOIs
Publication statusPublished - 2018 Jun 30

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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