Blue organic light-emitting diodes based on pyrazoline phenyl derivative
Date
2012-01-21
Advisor
Instructor
Source Title
Synthetic Metals
Print ISSN
0379-6779
Electronic ISSN
Publisher
Elsevier
Volume
162
Issue
3-4
Pages
352 - 355
Language
English
Type
Article
Journal Title
Journal ISSN
Volume Title
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.
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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)