کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1441823 | 1509423 | 2012 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Blue organic light-emitting diodes based on pyrazoline phenyl derivative Blue organic light-emitting diodes based on pyrazoline phenyl derivative](/preview/png/1441823.png)
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.
Journal: Synthetic Metals - Volume 162, Issues 3–4, March 2012, Pages 352–355