单异质结有机薄膜电致器件发光过程的理论模型

A theory model of organic electroluminescent devices based on heterojunction

在 Fowler-Nordheim方程的基础上 ,利用高斯定理对单异质结有机薄膜电致发光器件的发光过程进行理论分析和计算。计算结果表明在单异质结电致发光器件中 ,可降低器件的电流水平 。

The emitting process of organic thin film electroluminescent devices with single heterojunction is analyzed and calculated by taking advantage of Gauss's law based on Fowler Nordheim equation. The calculated results demonstrate that, in electroluminescent devices with single heterojunction, the redistribution of electric field leads to the enhancement of minority injection and reduction of majority injection. The enhancement of the minority results in the improvement of luminescent efficiency with the reduction of majority injection resulting in the falling of current level.