Development of emitting material to large area LED panels.

Purpose and goal

This project aims to increase the intensity and efficiency of the emitted light in the hybrid LEDs (HLEDs) by using nanostructures of ZnO modified by doping and changes in the nanostructure (size, shape, etc). We anticipate that a successful project will show improved efficiency by at least a factor of 4, and that we can demonstrate improved light extraction in the HLEDs by the use of modified ZnO nanostructures. This will demonstrate that ZnO has the potential to be a replacemen of GaN-material for lighting applications.

Results and expected effects

Performance achieved will give us access to venture capital with which we can build a pilot plant in Norrköping for production of HLEDs in low volumes. It will also give us the opportunity to build a larger development unit in Norrköping for continued development of ZnO based components. We also see that we can use ZnO as a materials for enhancing performance in similar types of components, such as OLEDs since the material have properties that improves the light extraction and efficiency in such components.

Approach and implementation

The project is implemented in three stages: stage 1 contains the study and selection of appropriate dopants compatible with ZnO. The aim is to identify a price effective material that increase light intensity and efficiency. A number of material analyzes will be performed. In Stage 2, a stable manufacturing process with good repeatability will be developed. The project results will be demonstrated in stage 3 through the development of a demonstrator with given performance in efficiency, size and uniformity of the emitted light.