Abstract
Light emitting devices (LEDs) based on colloidal semiconductor nanocrystals represent a matter of technological interest for the development of flat panel display and lighting systems. The appealing features of these materials are the high fluorescence efficiency, narrow ban edge emission, potential chemical stability, and tunable light emission across the visible spectrum. However the integration of these materials in the very promising PIN technology is still challenging due to the lack of an appropriate QD deposition technique. So far only wet deposition methods such as spin-coating and drop-casting have been exploited to realize QD thin film. Moreover QD thermal evaporation is not possible because of their high molecular weight. In this scenario we developed a dry, simple, and inexpensive deposition technique to transfer semiconductor QDs on organic semiconductor materials. We exploited this technique to fabricated an organic/inorganic hybrid red emitting device whit a doped hole transport layer.
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