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White LEDs using conjugated polymer blends

Cited 27 time in Web of Science Cited 26 time in Scopus
Authors
Hwang, Do-Hoon; Park, Moo-Jin; Lee, Changhee
Issue Date
2005
Publisher
Elsevier
Citation
Synth. Met. 152 (2005) 205
Keywords
White light-emitting diodeOrganic semiconductorElectroluminescence
Abstract
We fabricated white light-emitting devices using blends of two conjugated polymers. Poly[9,9-bis(4′-n-octyloxyphenyl)fluorene-2,7-diyl-co-10-(2′-ethylhexyl)phenomiazine-3,7-diyl] [poly(BOPF-co-PTZ)] was employed as a blue host polymer and stereo-regular poly(3-hexylthiophene) (P3HT) was employed as a red doping material. The PL emission spectra of the blend systems depended on its blend ratio. Each emission bands of poly(BOPF-co-PTZ) and P3HT were observed at 480 nm and 570 nm in the PL spectra of blend systems. As the P3HT content in the blend system increase the intensity of emission at 570 nm increases. The EL devices were fabricated with ITO/PEDOT/blend/LiF/Al configuration and white light-emission was obtained for a certain blend ratio.
ISSN
0379-6779
Language
English
URI
https://hdl.handle.net/10371/13839
DOI
https://doi.org/10.1016/j.synthmet.2005.07.215
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Journal Papers (저널논문_전기·정보공학부)
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