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Abstract

The invention relates to a method for producing temperature-stable large-size emitting LEDs and LEDs produced by said method. The method is characterised in that a large-area emitting light emitter is provided in the form of semiconductor nanocrystals which furthermore is temperature-stable and has a narrow band emission. A colloidal solution of emitting nanocrystals and a matrix of either inorganic gels or at least one polymer are alternately applied to the substrate with the first electrode by spraying, as a result of the electrostatic interactions between substrate, nanoparticles and inorganic gels or polymers, the nanopartides or the polymers of the matrix are adsorbed and the impurities run down with the solvent. The layer of alternately sprayed nanocrystals and matrix are heated to give a gel cross-linking the metal oxide nanoparticles, wherein thee size of thee semiconductor nanocrystals which determine the emission wavelength are determined by the temperature and duration of the heating. The second electrode is then applied by means of a conventional PVD method.

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First Claim