发光学报
髮光學報
발광학보
Chinese Journal of Luminescence
2015年
12期
1422-1426
,共5页
钙铝镁合金%阴极%电子注入
鈣鋁鎂閤金%陰極%電子註入
개려미합금%음겁%전자주입
Ca∶Al∶Mg alloy%cathode%electron injection
采用Ca/Al/Mg合金作为器件的阴极,基于红绿/蓝双发光层制作了6种白色磷光OLED器件,器件结构为ITO/MoO3(30 nm)/NPB (40 nm)/mCP∶Firpic (8%,40 nm)/CBP∶R-4B (2%)∶Ir(ppy)3(14%,5 nm)/TPBi (10 nm)/Alq3(40 nm)/Ca∶Al∶Mg (x%,100 nm)(x=0,5,10,15,20,25)。通过改变Mg的掺杂比例,研究了不同比例的Ca/Al/Mg合金阴极对器件性能的影响。结果表明:Mg质量分数为15%的Ca/Al/Mg阴极具有良好的电子注入特性,有效改善了器件的发光特性,最大发光亮度可达1504 cd/m2,效率达到最大值14.3 cd/A,色坐标接近(0.46,0.42)。
採用Ca/Al/Mg閤金作為器件的陰極,基于紅綠/藍雙髮光層製作瞭6種白色燐光OLED器件,器件結構為ITO/MoO3(30 nm)/NPB (40 nm)/mCP∶Firpic (8%,40 nm)/CBP∶R-4B (2%)∶Ir(ppy)3(14%,5 nm)/TPBi (10 nm)/Alq3(40 nm)/Ca∶Al∶Mg (x%,100 nm)(x=0,5,10,15,20,25)。通過改變Mg的摻雜比例,研究瞭不同比例的Ca/Al/Mg閤金陰極對器件性能的影響。結果錶明:Mg質量分數為15%的Ca/Al/Mg陰極具有良好的電子註入特性,有效改善瞭器件的髮光特性,最大髮光亮度可達1504 cd/m2,效率達到最大值14.3 cd/A,色坐標接近(0.46,0.42)。
채용Ca/Al/Mg합금작위기건적음겁,기우홍록/람쌍발광층제작료6충백색린광OLED기건,기건결구위ITO/MoO3(30 nm)/NPB (40 nm)/mCP∶Firpic (8%,40 nm)/CBP∶R-4B (2%)∶Ir(ppy)3(14%,5 nm)/TPBi (10 nm)/Alq3(40 nm)/Ca∶Al∶Mg (x%,100 nm)(x=0,5,10,15,20,25)。통과개변Mg적참잡비례,연구료불동비례적Ca/Al/Mg합금음겁대기건성능적영향。결과표명:Mg질량분수위15%적Ca/Al/Mg음겁구유량호적전자주입특성,유효개선료기건적발광특성,최대발광량도가체1504 cd/m2,효솔체도최대치14.3 cd/A,색좌표접근(0.46,0.42)。
Based on the red and green/blue light emitting layer, six white phosphorescent OLEDs are fabricated by using Ca/Al/Mg alloy as cathode, and the effects of different proportion of Ca/Al/Mg alloy on OLEDs are researched by changing the doping ratio of Mg. The device structures are as follows:ITO/MoO3 (30 nm)/NPB(40 nm)/mCP∶Firpic(8%)(40 nm)/CBP∶R-4B(2%)∶Ir(ppy)3(14%)(5 nm)/TPBi(10 nm)/Alq3(40 nm)/Ca∶Al∶Mg(x%) (100 nm)(x=0, 5, 10, 15, 20, 25). The experiment results show that the cathode with Mg mass fraction of 15%has good electron injection characteristics which can effectively improve the light-emitting characteristics of the de-vice. The maximum brightness is 1 504 cd/m2 , the maximum current efficiency is 14. 3 cd/A, and the color coordi-nates is close to (0. 46, 0. 42).