A thin film co-deposition system for Auger Fountain Organic Electroluminescent Diodes

我们最近发现，在某些特定的能量条件下，通常作为发光器件损耗机制的俄歇效应可以导致上转换发射，我们可以首次在有机异质结构中实现。我们在2007年发表了第一篇关于发光器件上转换机制的报告。我们将这种机制命名为“俄歇喷泉电致发光”，参考了10年前在半导体异质结构的光激发中观察到的类似机制。第一位加入我在女王大学团队的研究生的论文主题是详细研究上转换电致发光过程中发生的界面机制。目前RTI拨款申请的目标是建立一个薄膜沉积系统，专门用于构建具有精确控制异质结构界面的俄格喷泉有机电致发光二极管。我们将以这种方式在3年的时间尺度上定量地找出该过程的实际效率极限。在更长的时间尺度上，该系统将允许与女王大学的共同申请者合作开发新一代有机电子设备。

We discovered recently that the Auger effect which is usually a loss mechanism in light emitting devices can lead to up-converted emission under some specific energetic conditions that we could implement for the first time in an organic heterostructure. We published in 2007 the first report of an up-conversion mechanism in a light emitting device. We named the mechanism 'Auger fountain electro-luminescence' in reference to a similar mechanism observed 10 years ago in the optical excitation of a semiconductor-heterostructure. The thesis topic of the first grad student who joined my team at Queen's is to investigate in detail the interfacial mechanisms taking place during up-converted electroluminescence. The objective of the present RTI grant application is to set-up a thin-film deposition system specifically designed to build Auger fountain organic electro-luminescent diodes with a precise control of the heterostructure interface. We will in this way on a 3 years time-scale find-out quantitatively the practical efficiency limits of the process. On a longer time scale, the system will permit to develop new generations of organic electronic devices in collaboration with co-applicants at Queen's.