Astron Fiamm Safety Sarl

Mohamed Ben Khalifa

Bruno Dussert-Vidalet

Hélène Cloarec

Vincenzo Maiorano

Florent Monestier

Fabio Della Sala

Guiseppe Gigli

Marco Mazzeo

Fabrizio Mariano

An organic light emitting diode (OLED) emitting light downward through a transparent substrate. The OLED embeds a microcavity formed between a cathode and an anode and includes a plurality of organic layers including a light emitting layer. The plurality of organic layers include at least a first layer made of an organic doped material aimed at enhancing the transport of electrons; and at least a second layer made of an organic doped material aimed at enhancing the transport of holes. The anode is obtained by deposition of a semitransparent layer of silver (Ag) over the transparent substrate to be directly in contact with the first doped organic layer. Then, thicknesses of the first and second doped organic layers can be freely adapted to best adjust the optical characteristics of the microcavity for the wavelength of monochromatic light to be produced by the OLED.

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

An organic light-emitting diode (OLED) on a transparent substrate includes a microcavity formed between a reflecting cathode and semi-reflecting anode. The microcavity includes multiple organic layers with at least one light-emitting layer. The OLED is characterized by a transparent planarization layer between the substrate and an upper metallic layer forming the OLED semitransparent anode. A process for making such an OLED is also described.

Diode and process for making an organic light-emitting diode with a substrate planarisation layer

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Lecce, Italy

Mohamed Ben Khalifa