Patent ID: 8766245

Claim:
A method of making an electrode for use in an organic light emitting diode (OLED) device, the method comprising: sputter-depositing a first layer comprising indium tin oxide (ITO) on a substrate; sputter-depositing a second metallic or substantially metallic layer on the substrate over and directly contacting the first layer comprising ITO to form an electrode structure, so that the first layer comprising ITO is located between at least the substrate and the second metallic or substantially metallic layer, wherein as sputter-deposited the first layer comprising ITO is substantially more oxided than is the second metallic or substantially metallic layer; and heat treating the electrode structure including the substrate, the first layer comprising ITO, and the second metallic or substantially metallic layer, at temperature(s) of at least about 300 degrees C. in order to thermally activate the first layer comprising ITO.