Using Graphene to Lower the Cost and Footprint of LEDs

To reduce the footprint and cost of WLEDs, researchers from National Tsing Hua University designed a direct WLED derived from a strontium-based MOF, graphene and inorganic semiconductor hetero-junctions. Testing of the device showed that the WLED’s emission spectrum was continuous, similar to natural sunlight. This is in contrast to currently commercially available WLEDs, which are comprised of three discrete colors (red, green and blue), and which can make the colors of the objects they illuminate appear distorted.