Large Area Polymer Composite Films Embedded with Colloidal Quantum Dots for Efficient White Light Generation

Kang Bin Bae, Won Wook Lee, Hyeon Yong Song, Jin Hyeon Yun, Alexander Y. Polyakov, In-Hwan Lee

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A large-area (30 × 30 cm 2 ) polymer film, embedded with green- and red-emitting colloidal semiconductor quantum dots (QDs) to generate white light excited by blue light emitting diodes (LEDs), is fabricated. To prevent reabsorption and nonradiative energy transfer between QDs causing a significant redshift of the desired final color, the polymer film structure comprised of separated green and red emitting composite layers is explored. As a result, high-quality white light generation is demonstrated by placing these composite films on a blue LED platform.

Original languageEnglish
Article number1700644
JournalPhysica Status Solidi (A) Applications and Materials Science
Volume215
Issue number10
DOIs
Publication statusPublished - 2018 May 23

Keywords

  • color conversion
  • composites
  • energy transfer
  • photoluminescence
  • polymer
  • quantum dots

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

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