A systematic doping strategy to control the emission spectrum of ternary luminescent polymer blends for white emission

Tae Woo Lee, Jong Hyeok Park, O. Ok Park, Jihoon Lee, Young Chul Kim

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

In order to tune the emission color of a well-mixed ternary blend of organic luminescent materials with different bandgap energies, one should practice trial and error of varying the guest concentrations because the Förster-type energy transfer among the materials takes place so easily. In this work, we suggest a systematic doping strategy to control the emission color in ternary organic/polymer luminescent blends for white emission. The strategy comprises two steps: finding out the doping concentration of each guest in its binary blend with the host at which the emission intensities of the two components are comparable and then applying the predetermined doping concentrations of the two guests to the ternary blend system. The doping concentrations were as low as below 0.1 wt% of the host. Doping of a host chromophore with a very small amount of two emitting guests did not allow the excitation energy transfer among the guests although the partial energy transfer between the host and each of the guests occurred to give white electroluminescence.

Original languageEnglish
Pages (from-to)486-491
Number of pages6
JournalOptical Materials
Volume30
Issue number3
DOIs
Publication statusPublished - 2007 Nov

Bibliographical note

Funding Information:
This research was supported by the Kyung Hee University Research Fund in 2004 (KHU-20040436).

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering

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