کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10653202 1002847 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optical properties of white organic light-emitting devices fabricated with three primary-color emitters by using organic molecular-beam deposition
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Optical properties of white organic light-emitting devices fabricated with three primary-color emitters by using organic molecular-beam deposition
چکیده انگلیسی
White organic light-emitting devices (WOLEDs) with Mg:Ag/Alq3/Alq3:DCJTB/Alq3/DPVBi/α-NPD/ITO and Mg:Ag/Alq3/DPVBi:DCJTB/Alq3/DPVBi/α-NPD/ITO structures were fabricated with three primary-color emitters of red, green, and blue by using organic molecular-beam deposition. Electroluminescence spectra showed that the dominant white peak for the WOLEDs fabricated with host red-luminescence Alq3 and DPVBi layers did not change regardless of variations in the current. The Commission Inernationale de l'Eclairage (CIE) chromaticity coordinates for the two WOLEDs were stable, and the WOLEDs at 40 mA/cm2 with luminances of 690 and 710 cd/cm2 showed an optimum white CIE chromaticity of (0.33, 0.33). While the luminance yield of the WOLED fabricated with a host red-luminescent Alq3 emitting layer below 30 mA/cm3 was larger than that of the WOLED fabricated with a DPVBi layer, above 30 mA/cm2, the luminance yield of the WOLED fabricated with the DPVBi layer was higher than that of the WOLED with the Alq3 layer and became more stable with increasing current density. These results indicate that WOLEDs fabricated with a host red-luminescence DPVBi layer without any quenching behavior hold promise for potential applications in backlight sources in full-color displays.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 135, Issue 6, August 2005, Pages 400-404
نویسندگان
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