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针对聚合物电致发光材料缺乏可用的电子型聚合物半导体材料的现状 ,采用无机电子型半导体材料 Zn O∶Zn与空穴型聚合物材料 PDDOPV [poly (2 ,5 - bis (dodecyloxy) - phenylenevinylene) ]成功制备了结构为 ITO/PDDOPV/Zn O∶ Zn/Al的异质结双层器件 .异质结器件的发光效率与亮度较单层器件提高 1个数量级以上 .该异质结器件的发光颜色是随着电压的增加而蓝移的 ,其光致发光光谱也随着激发波长的改变而改变 ,可能形成了新的发光基团 .
In view of the lack of available electron polymeric semiconducting materials for polymeric electroluminescent materials, Zn O: Zn and inorganic semiconducting materials such as PDDOPV [poly (2, 5 - bis (dodecyloxy) - phenylenevinylene )] Successfully fabricated a heterojunction bilayer device with the structure of ITO / PDDOPV / Zn O: Zn / Al.The luminous efficiency and brightness of the heterojunction device were improved by more than one order of magnitude compared with that of the single-layer device Luminescence color is blue-shifted with the increase of voltage, and its photoluminescence spectrum also changes with the excitation wavelength, which may form a new luminescent group.