Organic light-emitting diode with microcavity including doped organic layers and fabrication process thereof

An organic light emitting diode (OLED) emitting light downward through a transparent substrate (240), the OLED embedding a microcavity (220) formed between a cathode (210) and an anode (230) and including a plurality of organic layers comprising a light emitting layer (225), characterized in that:

• the plurality of organic layers includes at least a first layer (229) made of an organic doped material aimed at enhancing the transport of holes;
• the plurality of organic layers includes at least a second layer (221) made of an organic doped material aimed at enhancing the transport of electrons;
• and further characterized in that:
• the anode (230) is obtained by deposition of a semitransparent layer of silver (Ag) over the transparent substrate (240) to be directly in contact with the first doped organic layer (229).

A process for fabricating an organic light emitting diode (OLED) emitting light downward through a transparent substrate (240), the OLED embedding a microcavity (220) formed between a cathode (210) and an anode (230) and including a plurality of organic layers comprising a light emitting layer (225), the fabrication process characterized in that:

• the plurality of organic layers includes at least a first layer (229) obtained by thermal vacuum deposition of an organic doped material aimed at enhancing the transport of holes;
• the plurality of organic layers includes at least a second layer (221) obtained by thermal vacuum deposition of an organic doped material aimed at enhancing the transport of electrons;
• and further characterized in that:
• the anode (230) is obtained by a prior thermal vacuum deposition of a semitransparent layer of silver (Ag) over the transparent substrate (240) to be directly in contact with the first doped organic layer (229).