Polyaniline-Based Conducting Polymer Compositions with a High Work Function for Hole-Injection Layers in Organic Light-Emitting Diodes: Formation of Ohmic Contacts
SCIE
SCOPUS
- Title
- Polyaniline-Based Conducting Polymer Compositions with a High Work Function for Hole-Injection Layers in Organic Light-Emitting Diodes: Formation of Ohmic Contacts
- Authors
- Choi, MR; Seoung-Hoon Woo; Tae-Hee Han; Kyung-Geun Lim; Sung-Yong Min; Won MIn Yun; Oh Kwan Kwon; Park, CE; Kwan-Do Kim; Hoon-Kyu Shin; Myeong-Suk Kim; Taeyong Noh; Jong Hyeok Park; Kyoung-Hwan Shin; Jyongsik Jang; Lee, TW
- Date Issued
- 2011-01
- Publisher
- WILEY-BLACKWELL
- Abstract
- It is a great challenge to develop solution-processed, polymeric hole-injection layers (HILs) that perform better than small molecular layers for realizing high-performance small-molecule organic light-emitting diodes (SM-OLEDs). We have greatly improved the injection efficiency and the current efficiency of SM-OLEDs by introducing conducting polymer compositions composed of polyaniline doped with polystyrene sulfonate and perfluorinated ionomer (PFI) as the HIL. During single spin-coating of conducting polymer compositions, the PFI layer was self-organized at the surface and greatly increased the film work function. It enhanced hole-injection efficiency and current efficiency by introducing a nearly ohmic contact and improving electron blocking. Our results demonstrate that solution-processed polyaniline HILs with tunable work functions are good candidates for reducing process costs and improving OLED performance.
- Keywords
- charge-carrier injections; conducting materials; organic light-emitting diodes; materials science; polymers; EFFICIENT; DEVICES; INTERFACES; FILM
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/17550
- DOI
- 10.1002/CSSC.201000338
- ISSN
- 1864-5631
- Article Type
- Article
- Citation
- CHEMSUSCHEM, vol. 4, no. 3, page. 363 - 368, 2011-01
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- There are no files associated with this item.
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