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Leo

LEO is a European project of industrial research presented by the Commissariat a L’energie Atomique et aux Energies Alternatives approved on the “ICT-29-2014 – Development of novel materials and systems for OLED lighting ” call within the H2020-EU.2.1.1.6. – “Micro- and nanoelectronics and photonics: Key enabling technologies related to micro- and nanoelectronics and to photonics, covering also quantum technologies”

Abstract

The OLED technology (Organic Light-Emitting Eiode) is already widely used in displays and is spreading also in the lighting sector. Although OLEDs have lower performance and higher costs than LED devices, they have advantageous and unique features such as: large emission area that allows innovative designs, excellent light quality and variety of colors, and the possibility of manufacturing flexible and/or transparent light sources. The LEO project aims at the realization of conformable OLED devices for lighting that are more efficient than OLEDs currently available on the market. The project targets the costs of materials and processes that account for 80% of the total cost of the OLED panel. The research focuses on the integration of new materials (metal substrates, electrodes without ITO, organic materials and solutions for outcoupling) and hybrid dry/wet processes to obtain OLEDs of various colors (cold and warm white light, RGB). The project covers the entire product development starting from research activities in the lab scale, through a pilot production line, up to a complete lighting system designed in collaboration with world-famous external companies such as Artemide and Technology Luminaires.

Results

The main objective of the project is the production of a conformable OLED panel that emits white light (hot and cold) and RGB with a large area (> 500 cmq), high efficiency and reduced costs.

In detail, the project aims at:

  • Development of a functionalized metallic substrate with integrated connections;
  • Development of a semi-transparent electrode without ITO;
  • Development of manufacturing protocols for hybrid processes;
  • Development of an innovative encapsulation with outcoupling;
  • Formulation of recycling strategies;