In a method for producing ITO layers on substrates, especially for the production of organic light-emitting diodes, part of the ITO layer thickness is applied first by sputter-deposition, at a controlled temperature profile, in such manner that the formation of crystallization nuclei is prevented; subsequently, the partially coated substrate is heated to a temperature above the recrystallization temperature of the ITO layer, and then the rest of the ITO layer is sputter-deposited.

 
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