A soluble self-doped conducting polyaniline graft copolymer as a hole injection layer in polymer light-emitting diodes
SCIE
SCOPUS
- Title
- A soluble self-doped conducting polyaniline graft copolymer as a hole injection layer in polymer light-emitting diodes
- Authors
- Huh, DH; Chae, M; Bae, WJ; Jo, WH; Lee, TW
- Date Issued
- 2007-11-30
- Publisher
- ELSEVIER SCI LTD
- Abstract
- We demonstrate that a novel soluble self-doped conducting polyaniline graft copolymer can be used for a hole injection layer (HIL) in polymer light-emitting diodes (PLEDs). The work function of the material (5.18 eV) was similar to that (5.20 eV) of a conventional conducting polymer dispersion, poly(3,4-ethylenedioxythiophene) (PEDOT) doped with polystyrene sulfonate (PSS). When we fabricated PLEDs by using this material, the current-voltage-luminescence characteristics were very similar to those of the device using the PEDOT/PSS. When the material was blended with PSS, the luminous efficiency was further improved up to 11.9 cd/A. Since this kind of soluble type HIL has advantages over the conventional PEDOT/PSS dispersion in terms of the solution processibility and film quality, this soluble graft-type conducting polymer can be one of the promising candidates for a HIL in PLEDs. © 2007 Elsevier Ltd. All rights reserved.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/28858
- DOI
- 10.1016/j.polymer.2007.09.046
- ISSN
- 0032-3861
- Article Type
- Article
- Citation
- POLYMER, vol. 48, no. 25, page. 7236 - 7240, 2007-11-30
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