عنوان
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Fabrication of an Organic Light-Emitting Diode from New Host π Electron Rich Zinc Complex
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نوع پژوهش
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مقاله چاپشده
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کلیدواژهها
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OLEDs, p electron rich zinc complex, luminance, porphyrin derivatives, CIE (X, Y) coordinate
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چکیده
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Anewp electron rich zinc complex was used as a fluorescent material in organic light-emitting diodes (OLEDs). Devices with a structure of indium tin oxide/ poly (3,4-ethylenedi-oxythiophene):poly(styrenesulfonate) (PEDOT: PSS) (50 nm)/polyvinylcarbazole (60 nm)/Zn: %2 porphyrin derivatives (45 nm)/Al (150 nm) were fabricated. Porphyrin derivatives accounting for 2 wt.% in the p electron rich zinc complex were used as a host. The electroluminescence (EL) spectra of porphyrin derivatives indicated a red shift, as p electron rich zinc complex EL spectra. The device (4) has also a luminance of 3420 cd/m2 and maximum efficiency of 1.58 cd/A at 15 V, which are the highest values among four devices. The result of Commission International del’Eclairage (CIE) (X, Y) coordinate and EL spectrum of device (3) indicated that it is more red shifted compared to other devices. Results of this work indicate that p electron rich zinc complex is a promising host material for high efficiency red OLEDs and has a simple structure compared to Alq3-based devices
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پژوهشگران
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زهرا شاهدی (نفر سوم)، محمد جانقوری (نفر دوم)، محمدرضا جعفری (نفر اول)
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