Blue organic light-emitting diodes based on pyrazoline phenyl derivative
Author
Stakhira, P.
Khomyak, S.
Cherpak, V.
Volyniuk, D.
Simokaitiene, J.
Tomkeviciene, A.
Kukhta, N.A.
Grazulevicius, J.V.
Kukhta, A.V.
Sun, X.W.
Demir, Hilmi Volkan
Hotra, Z.
Voznyak, L.
Date
2012-01-21Source Title
Synthetic Metals
Print ISSN
0379-6779
Publisher
Elsevier
Volume
162
Issue
3-4
Pages
352 - 355
Language
English
Type
ArticleItem Usage Stats
148
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Abstract
The results of an experimental study of the electroluminescent device made of ITO/CuI/2,6-di-tert.-butyl-4-(2,5-diphenyl-3,4-dihydro-2H-pyrazol-3-yl)- phenol (HPhP)/3,6-Di(9-carbazolyl)-9-(2-ethylhexyl) carbazole (TCz1)/Ca:Al with efficacy up to 10.63 cd/A are presented. HPhP provides blue emission with a peak wavelength at 445 nm. The layer of TCz1 acts as an electron-transporting layer. In the framework of density functional theory (DFT) approach the geometry configuration and energy levels of HPhP are found being in a good agreement with spectral and cyclic voltammogram data.
Keywords
Blue emittingCarbazole derivates
Organic light emitting diode
Pyrazoline derivative
Vacuum deposition
Blue emission
Blue organic light emitting diodes
Blue-emitting
Carbazole derivates
Cyclic voltammograms
Electron-transporting layers
Experimental studies
Organic light-emitting
Peak wavelength
Pyrazoline derivative
Pyrazolines
Electroluminescence
Luminescent devices
Optoelectronic devices
Phenols
Polycyclic aromatic hydrocarbons
Vacuum deposition
Organic light emitting diodes (OLED)
Permalink
http://hdl.handle.net/11693/21553Published Version (Please cite this version)
http://dx.doi.org/10.1016/j.synthmet.2011.12.017Collections
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