- Large area (15 x 15 cm²) white OLEDs with a loss of power under 10 percent compared to smaller areas – a significant progress in the fabrication of lighting applications. (photo: Fraunhofer IPMS)
Large-Area OLED Fabrication Technologies
Demands concerning prospective lighting technologies are high: The light sources are supposed to be »cold«, meaning economical, yet able to efficiently transforming electrical energy into light. At the same time, they are expected to fulfill the increasingly varied customer demands regarding design. The European project »OLLA« in cooperation with the Fraunhofer IPMS is a first step towards this aim. The 24 cooperation partners (consortium manager Philips) develop novel, highly efficient materials, device structures and cost-effective process technologies. Thus the displacement of current light source types with organic light-emitting diodes within 10 to 15 years time has come within reach.
Within OLLA, the Fraunhofer IPMS is held responsible for the development and integration of large-area and highly efficient OLED fabrication technologies. In 2007, highly efficient white OLEDs scaled onto large areas (15 x 15 cm²) were successfully manufactured. In this process, the loss of power compared to smaller areas was kept below 10 percent – a significant progress in the fabrication of large-area lighting applications.
Contact:
Moritz Fleischer
Fraunhofer Institute for Photonic Microsystems IPMS
phone: +49 (0) 351 / 8823-249
moritz.fleischer(at)ipms.fraunhofer(dot)de
www.ipms.fraunhofer.de