Control of the surface composition of a conducting-polymer complex film to tune the work function
SCIE
SCOPUS
- Title
- Control of the surface composition of a conducting-polymer complex film to tune the work function
- Authors
- Lee, TW; Chung, YS
- Date Issued
- 2008-08-11
- Publisher
- WILEY-V C H VERLAG GMBH
- Abstract
- Control of surface composition of a hole-injecting conducting polymer complex, poly(3,4-ethylenedioxy thiophene) (PEDOT) doped with a polystyrene sulfonate (PSS) has been conducted in the spin-cast films. We found that the work function of the polymeric complex films formed via single spin-coating can be greatly increased up to 5.44eV by increasing the surface concentration of the PSS dopant. As a result, we improved the device efficiency and the lifetime of green emitting polymer light-emitting diodes (PLEDs). This implies that the PSS surface layer of the films spin-cast from the conducting polymer complexes plays a key role in making high performance PLEDs.
- Keywords
- LIGHT-EMITTING-DIODES; HOLE-INJECTION; PHOTOELECTRON-SPECTROSCOPY; LAYER; PSS; POLYANILINE; MORPHOLOGY
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/28853
- DOI
- 10.1002/ADFM.2007007
- ISSN
- 1616-301X
- Article Type
- Article
- Citation
- ADVANCED FUNCTIONAL MATERIALS, vol. 18, no. 15, page. 2246 - 2252, 2008-08-11
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