innovation for industry
For the past three years, four Grenoble laboratories have been working together, using methods from materials science and economics to find alternatives to the critical materials in white LEDs. Their work, funded by the UGA Idex grant, marks a departure from conventional technology research.
Scientists’ interest in the scarcity and criticality of certain materials is not new. What is new is that they are treating them as research topics in and of themselves, and not just constraints to be factored into other research. With CEA-Leti’s support, LMGP, Institut Néel, and applied economics lab GAEL have been investigating the rare and critical elements (gallium, indium, yttrium, and cerium) in white LEDs.
CEA-Leti, which possesses substantial know-how in LED systems, supported this research.
CEA is a French government-funded technological research organisation in four main areas: low-carbon energies, defense and security, information technologies and health technologies. A prominent player in the European Research Area, it is involved in setting up collaborative projects with many partners around the world.