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Color tuning of doped PLEDs by energy transfer from PVK to dopant constituted with biphenyl and butadienyl unit

Title
Color tuning of doped PLEDs by energy transfer from PVK to dopant constituted with biphenyl and butadienyl unit
Authors
Han, YS[Han, Yoon Soo]Kim, H[Kim, Hoyoung]Choi, BD[Choi, Byeong Dae]Kwon, Y[Kwon, Younghwan]Hur, Y[Hur, Youngjune]Kwak, G[Kwak, Giseop]Kim, SH[Kim, Soon Hak]Park, LS[Park, Lee Soon]Choi, BD[Choi, Byeong-Dae]
DGIST Authors
Han, YS[Han, Yoon Soo]; Kim, H[Kim, Hoyoung]Choi, BD[Choi, Byeong Dae]; Choi, BD[Choi, Byeong-Dae]
Issue Date
2007
Citation
Molecular Crystals and Liquid Crystals, 470, 341-351
Type
Article
Article Type
Article; Proceedings Paper
Keywords
Butadienyl UnitsDopantDoping (Additives)ElectroluminescenceEnergy TransferHostLight-Emitting DiodesPhotoluminescencePolymer Light-Emitting Diode (PLED)
ISSN
1542-1406
Abstract
A dopant, 4,4'-bis(dimethyl[4-(2-phenyl-buta-1,3-dienyl)phenyl]amine) biphenyl (BPAB), was synthesized, and single layered polymer light emitting diode (PLED)s, ITO/Host:Dopant/Al, were fabricated with blends of poly(vinyl carbazole) (PVK) as host and BPAB as dopant. The electroluminescence (EL) was observed in doped PLEDs. From the EL and photoluminescence (PL) spectra, the existence of energy transfer from host to dopant was verified. With increasing content of dopant (BPAB), blue emission originated from PVK reduced, but didn't completely disappear, suggesting inefficient energy transfer from PVK to BPAB. When the content of BPAB was 15 wt%, yellow green emission from PLED was observed due to partial energy transfer from PVK to BPAB.
URI
http://hdl.handle.net/20.500.11750/3591
DOI
10.1080/15421400701497829
Publisher
Taylor and Francis Ltd.
Related Researcher
Files:
There are no files associated with this item.
Collection:
Intelligent Devices and Systems Research Group1. Journal Articles
Division of Nano∙Energy Convergence Research1. Journal Articles


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