Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1441823 | Synthetic Metals | 2012 | 4 Pages |
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.
► The blue OLED based on pyrazoline phenyl derivative was fabricated. ► We conclude that TCz1 layer can be used as the electron transporting layer. ► We find that HPhP molecule is non-planar and possible to form stable amorphous films.