A soluble self-doped conducting polyaniline graft copolymer as a hole injection layer in polymer light-emitting diodes

Autor:	Dal Ho Huh, Woo Jin Bae, Mi-Young Chae, Won Ho Jo, Tae-Woo Lee
Rok vydání:	2007
Předmět:	chemistry.chemical_classification Conductive polymer Materials science Polymers and Plastics Organic Chemistry Polymer Electroluminescence Polystyrene sulfonate chemistry.chemical_compound chemistry PEDOT:PSS Chemical engineering Polymer chemistry Polyaniline Materials Chemistry OLED Copolymer
Zdroj:	Polymer. 48:7236-7240
ISSN:	0032-3861
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d5a3e0d8d76b2b0a6beb509e75965194 https://doi.org/10.1016/j.polymer.2007.09.046 Zobrazit plný text záznamu Full Text from ScienceDirect