Blue organic light-emitting diodes based on pyrazoline phenyl derivative
Demir, Hilmi Volkan
352 - 355
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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.
Organic light emitting diode
Blue organic light emitting diodes
Polycyclic aromatic hydrocarbons
Organic light emitting diodes (OLED)
Published Version (Please cite this version)http://dx.doi.org/10.1016/j.synthmet.2011.12.017
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