Achieving high-efficiency polymer white-light-emitting devices

Jinsong Huang, Gang Li, Elbert Wu, Qianfei Xu, Yang Yang

Research output: Journal article publicationReview articleAcademic researchpeer-review

399 Citations (Scopus)

Abstract

A method was developed to enhance the efficiency of white polymer light emitting devices (WPLEDs) by introducing an electron injection and hole-blocking layer, and using a polymer blend system as the active material. WPLEDs can be realized by the incomplete transfer of energy from poly(9,9-dioctylfluorene) (PFO) to poly[2-methoxy-5-(2'-ethyl-hexyloxy)-1,4-phenylene vinylene] (MEH-PPV), and the color was modulated from yellow to white by changing the concentration of MEH-PPV. The device shows improved performance and highest power efficiency of 16 lm W-1. The method can also be used to achieve ultrahigh efficient polymer LEDs.
Original languageEnglish
Pages (from-to)114-117
Number of pages4
JournalAdvanced Materials
Volume18
Issue number1
DOIs
Publication statusPublished - 5 Jan 2006
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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