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      Blue organic light-emitting diodes based on pyrazoline phenyl derivative

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      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
      2012-01-21
      Source Title
      Synthetic Metals
      Print ISSN
      0379-6779
      Publisher
      Elsevier
      Volume
      162
      Issue
      3-4
      Pages
      352 - 355
      Language
      English
      Type
      Article
      Item Usage Stats
      148
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      112
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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 emitting
      Carbazole 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/11693/21553
      Published Version (Please cite this version)
      http://dx.doi.org/10.1016/j.synthmet.2011.12.017
      Collections
      • Department of Electrical and Electronics Engineering 3524
      • Department of Physics 2299
      • Institute of Materials Science and Nanotechnology (UNAM) 1775
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