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

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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.