Flexible White Organic Light-Emitting Devices with a Porous Red Polymer Layer and a Blue Small Molecular Layer Utilizing a Phase Separation of Blended Polymer
- Authors
- Jeon, Young Pyo; Ko, Yo Sub; Choo, Dong Chul; Kim, Tae Whan
- Issue Date
- Apr-2012
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- White Organic Light-Emitting Device; Hybrid EML; Flexible Device
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.12, no.4, pp.3611 - 3614
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 12
- Number
- 4
- Start Page
- 3611
- End Page
- 3614
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/165967
- DOI
- 10.1166/jnn.2012.5661
- ISSN
- 1533-4880
- Abstract
- Flexible white organic light-emitting devices (WOLEDs) with an emitting layer consisting of a porous red poly(2-methoxy-5-(2'-ethyl-hexyloxy)-1,4-phenylenevinylene) (MEH-PPV) polymer layer and a blue 4,4'-bis(2,2'-diphenylvinyl)-1,1'-biphenyl (DPVBi) small molecular layer were fabricated on polyethylene terephthalate substrates. The current density of the flexible WOLEDs fabricated with a blend layer formed with a higher spincoating speed was significantly higher than that of a device fabricated with a lower spincoating speed, due to the higher pore density. The ratio between the red and the blue color peak intensities of the electroluminescence spectra for the flexible WOLEDs with a porous red MEH-PPV polymer layer and a blue DPVBi small molecular layer was controlled by the spincoating speed of the blend layer.
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