Rubrene/苝酰亚胺异质结电致发光二极管的上转换注入
Up-conversion injection in Rubrene/Perylene-diimide-heterostructure electroluminescent diodes
摘要：
我们实现并演示了一个方案，允许驱动电致发光具有极低的开启电压。该器件表现得像化合物半导体，其中电致发光开启电压与光伏效应的开路电压大致相同。然而，电致发光开启电压约为发光材料带隙的一半，这不能用有机半导体中电荷注入的电流模型来解释。我们在此提出通过螺旋式两步喷射机制（螺旋喷泉）的解释。
英文摘要：
We implement and demonstrate a scheme that permits to drive electroluminescence with an extremely low turn-on voltage. The device behaves like compound semiconductors, in which the electroluminescence turn-on voltage is about the same as the open circuit voltage for the photovoltaic effect. However, the electroluminescence turn-on voltage is about half of the band gap of the emitting material, that cannot be explained using current models of charge injection in organic semiconductors. We hereby propose explanation through an Auger-type two-step injection mechanism (Auger-fountain).
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