کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1671958 | 1008926 | 2009 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: High efficiency red organic light-emitting diodes using a phosphorescent iridium complex doped into a hole-blocking material High efficiency red organic light-emitting diodes using a phosphorescent iridium complex doped into a hole-blocking material](/preview/png/1671958.png)
We demonstrate high-efficiency red electrophosphorescent organic light-emitting devices (OLEDs) by doping a red-emitting iridium complex, Bis[7-methyl-1-p- tolyisoquinolinato-N,C2′]-iridium(III)(acetylacetonate) [(7-mtiq)2Ir(acac)], into a hole-blocking material, 4-biphenyloxolato aluminum(III)bis(2-methyl-8- quinolinato)4-phenylphenolate. Both the phosphorescent characteristics of (7-mtiq)2Ir(acac) and the electroluminescence mechanisms of OLEDs are investigated in this study. The Commission Internationale de L'Eclairage coordinates of (0.66, 0.34) is very close to the National Television System Committee standard red point (0.66, 0.33). With a dopant concentration of about 4%, a maximum luminance of 31317 cd/m2 and a luminous efficiency of 21.6 cd/A have been obtained.
Journal: Thin Solid Films - Volume 517, Issue 13, 1 May 2009, Pages 3788–3791