نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشکده فناوریهای صنعتی، دانشگاه صنعتی ارومیه، ارومیه، ایران
2 پژوهشکده لیزر و پلاسما، دانشگاه شهید بهشتی، اوین، تهران، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Red and yellow organic light-emitting diodes (OLEDs) with using a single furnace method have been fabricated and investigated. The current-voltage, electroluminescence, luminescence-current, and CIE characteristics of dopants coumarin 6, Nile Red and 3, 4 TPP as well as co-doping of three dopants in Alq3 were measured. Red emission with doping of [Nile Red], [C-6: Nile Red] and yellow emission with doping of [3, 4 TPP] and [C-6:3, 4 TPP] in Alq3 were achieved. The co-doping of dopants of [C-6: Nile Red] and [C-6:3, 4 TPP] in Alq3 decreased the bias and turn on voltage compared to pure [Nile Red] and [3, 4 TPP] in Alq3 devices for the same current density. The highest EL efficiency was found for a [C-6: Nile Red (1:0.5)] and [C-6:3, 4 TPP (1:0.5)]. Results of this work indicate that the performance of red and yellow OLEDs fabricated with a single furnace is a promising candidate for fabrication of low-cost yellow and red OLEDs at more homogeneous layer instead of employing of two and three furnaces.
کلیدواژهها [English]