Blue organic light-emitting diodes based on pyrazoline phenyl derivative

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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.

Source Title

Synthetic Metals

Publisher

Elsevier

Course

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Book Title

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)

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Citation

Published Version (Please cite this version)

Language

English

Type

Article