Communication

Highly Efficient White Polymer Light-Emitting Diodes Based on Nanometer-Scale Control of the Electron Injection Layer Morphology through Solvent Processing†

  1. Yong Zhang1,2,
  2. Fei Huang1,2,
  3. Yun Chi3,
  4. Alex K.-Y. Jen1,2,*

Article first published online: 4 APR 2008

DOI: 10.1002/adma.200701988

Issue

Advanced Materials

Advanced Materials

Volume 20, Issue 8, pages 1565–1570, April 21, 2008

Additional Information

How to Cite

Zhang, Y., Huang, F., Chi, Y. and Jen, A. K.-Y. (2008), Highly Efficient White Polymer Light-Emitting Diodes Based on Nanometer-Scale Control of the Electron Injection Layer Morphology through Solvent Processing. Advanced Materials, 20: 1565–1570. doi: 10.1002/adma.200701988

Author Information

  1. 1

    Department of Materials Science and Engineering University of Washington Box 352120, Seattle, WA 98195 (USA)

  2. 2

    Institute of Advanced Materials and Technology University of Washington Seattle, WA 98195 (USA)

  3. 3

    Department of Chemistry National Tsing Hua University Hsin-Chu (Taiwan)

*Department of Materials Science and Engineering University of Washington Box 352120, Seattle, WA 98195 (USA).

  1. †

    This work was supported by the National Science Foundation (NSF-STC program under DMR-0120967) and the University of Washington through the Technology Gap Innovation Fund.

Publication History

  1. Issue published online: 21 APR 2008
  2. Article first published online: 4 APR 2008
  3. Manuscript Revised: 12 OCT 2007
  4. Manuscript Received: 8 AUG 2007

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Keywords:

  • White organic light-emitting diodes;
  • Morphology;
  • Solution processing;
  • Charge injection

Graphical Abstract

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Highly efficient white polymer light-emitting diodes (WPLEDs) are demonstrated using neutral conjugated polymer surfactant PFN-OH as the electron-injection layer through solution processing. The electroluminescence spectra and luminance efficiency are strongly dependent on the morphology of the PFN-OH films. The dramatic improvement of device performance is attributed to the efficient hole-blocking ability due to mixed solvent-induced PFN-OH chain aggregation.

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