Ohio University

Hugh Richardson

Martin E Kordesch

A variety of optimal luminescent emitter layers, luminescent devices, and methods of fabricating the same are provided. In accordance with one embodiment of the present invention, an alternating current thin film electroluminescent device is provided including an AC power source and an emitter layer positioned between a pair of electrode layers. One of the pair of electrode layers is transparent to visible light of a selected wavelength. The AC power source is connected across the pair of electrode layers. The emitter layer comprises a non-conductive amorphous alloy comprising aluminum nitride and an Er luminescent center. The emitter layer and the pair of electrode layers are arranged such that, upon activation of the AC power source, an electric field is created between the electrode layers across the emitter layer. The aluminum nitride and the Er luminescent center are provided in proportions selected such that the electric field causes emission of visible light of the selected wavelength from the emitter layer.

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Athens, OH, United States of America

Hugh Richardson