CAJ | 학술논문

以Tb3+：水杨酸(Tb3+：(SA)3)为空穴传输层兼发光层、高荧光材料Alq3为电子传输层，得到了窄谱带的绿色有机薄膜电致发光双层结构器件. 实验证实，双层器件的电致发光是电荷载流子隧穿内界面(Tb3+:(SA)3/Alq3 )之后分别在两有机层内的复合发光，是两有机层本征发光的叠加. 其光谱随着电子传输层厚度而改变，因而减少电子传输层厚度能得到亮度高、稳定性好的窄谱带电致发光器件，为获得高色纯度和稳定的电致发光器件提供了思路和方法.
이Tb3+：수양산(Tb3+：(SA)3)위공혈전수층겸발광층、고형광재료Alq3위전자전수층，득도료착보대적록색유궤박막전치발광쌍층결구기건. 실험증실，쌍층기건적전치발광시전하재류자수천내계면(Tb3+:(SA)3/Alq3 )지후분별재량유궤층내적복합발광，시량유궤층본정발광적첩가. 기광보수착전자전수층후도이개변，인이감소전자전수층후도능득도량도고、은정성호적착보대전치발광기건，위획득고색순도화은정적전치발광기건제공료사로화방법.
Pure green and narrow bandwidth emission from organic bilayer electroluminescent devices were presented by using Tb3+∶(SA)3 as hole-transporting layer and emissive layer, and high fluorescent material Alq3 acting as electron-tr ansporting layer. It proves that the emission comes from carriers' recombinatio n af ter their tunneling through the inner interface (Tb3+∶(SA)3/Alq3) in the bilaye r ITO/Tb3+∶(SA)3(40nm)/Alq3(55 nm)/Al diode. The spectrum of the bil ay er devices varies with the thickness of the electron-transporting layer. Keepin g the thickness of Tb3+∶(SA)3 layer constant, there is no emission from Alq3 layer when Alq3 layer reduces to 12?nm; meanwhile, pure green and nar ro w bandwidth emission can be observed. Thus, it provides a simple way to obtain h igh luminance and long-term stability by reducing electron- or hole-transport ing layer, especially, by using a lanthanide complex for emissive layer.