Layer-by-layer spin self-assembled hole injection layers containing a perfluorinated ionomer for efficient polymer light-emitting diodes
- Authors
- Park, Juhyun; Kwon, Youngnarn; Lee, Tae-Woo
- Issue Date
- Jun-2007
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- Hole injection layer; Ionomers; Layer-by-layer self-assembly; Light-emitting diodes (LED); PEDOT:PSS
- Citation
- MACROMOLECULAR RAPID COMMUNICATIONS, v.28, no.12, pp 1366 - 1372
- Pages
- 7
- Journal Title
- MACROMOLECULAR RAPID COMMUNICATIONS
- Volume
- 28
- Number
- 12
- Start Page
- 1366
- End Page
- 1372
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/38795
- DOI
- 10.1002/marc.200700114
- ISSN
- 1022-1336
1521-3927
- Abstract
- Deposition of hole injection layers including a perfluorinated ionomer has been demonstrated using layer-by-layer spin self-assembly for enhanced device efficiency and lifetime in PLEDs. We show that the LBL spin self-assembled thin films enable to control work functions of indium-tin oxide anodes by changing the PFI concentration and that a resulting green-emitting device has an enhanced luminescence efficiency and 18 times longer half lifetime than a device using a conventional HIL. We also fabricate a gradient of energy levels by the LBL self-assembly of the PFI that results in a work function of 5.74 eV, which can be used to improve carrier injection even for an emitting layer whose ionization potential is over 5.7 eV.
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Collections - College of Engineering > School of Chemical Engineering and Material Science > 1. Journal Articles
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