Different emission mechanism of organic-inorganic heterostructure device

摘要

Three types of organic-inorganic heterostructure device are fabricated. The emission from the organic layer, inorganic layer and both of the organic and inorganic layers are observed, respectively. The emission mechanism of these organic-inorganic heterostructure devices is different, which can be attributed to the difference of electric field and interfacial barrier of the device. By changing the thickness of organic and inorganic layers or adjusting the relative height of barrier potential at organic-inorganic interface, we can tune the emission zone and obtain different emission from each layer.