C545T가 첨가된 OLED 소자의 발광특성
The Luminescent Characteristics of C545T Doped OLED Devices
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Abstract
To investigate the characteristics of green light-emitting OLED device, C545T material with Alq3 was doped in the OLED device of ITO(1500)/2-TNATA(400/NPB(80/Alq3:C545T(160/Alq3(240/LiF(3/ Al(2400 structure, which was used as a activator at the respective concentration of 0.5 vol.%, 1 vol.%, 2 vol.% and 3 vol.%. It was observed from the experiments that the device efficiency firstly increased with the increase of C545T concentration and the maximum efficiency of 10.9 cd/A and 4.28 lm/W was obtained at C545T concentration of 1 vol.%, and then the device efficiency decreased as the C545T activator concentration increased above 2 vol.% contents, while the longest lifetime of over 750 hours was obtained at C545T concentration of 1 vol.%.