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电致发光材料在大屏幕平板显示和移动通讯器件方面有着极大的优越性。Ⅱ-Ⅵ族无机半导体、金属有机化合物及共轭聚合物等都是电致发光材料。由半导体纳米晶体和电致发光聚合物组成的双发光器件中,纳米半导体的发光不仅可以通过掺杂及形成核壳结构来加以调节,而且受到其复合体系类型、纳晶含量、外加电压等因素制约;而无机半导体的高电荷输运特性也将影响聚合物发光层的效率。同时,利用无机纳米半导体的光导特性,这种复合体系也可以制成光导与电致发光双功能器件,且其发光效率可有较大幅度提高。
Electroluminescent materials have great advantages in the large-screen flat panel display and mobile communication devices. Ⅱ-Ⅵ inorganic semiconductors, metal organic compounds and conjugated polymers are all electroluminescent materials. In a dual light-emitting device composed of a semiconductor nanocrystal and an electroluminescent polymer, the luminescence of a nano-semiconductor can be adjusted not only by doping and formation of a core-shell structure, but also by factors such as the type of the composite system, the nanocrystal content and the applied voltage While the high charge transport properties of inorganic semiconductors will also affect the efficiency of the polymer light-emitting layer. At the same time, the use of inorganic nano-semiconductor photoconductive properties, this composite system can also be made of light guide and electroluminescent dual-function devices, and its luminous efficiency can be greatly improved.