Marion Gruart wins award and PhD grant for red LED research

Marion Gruart, who did her PhD research at Irig from 2016 to 2020, won a Grenoble-Alpes University innovation award for her dissertation. She was also hired for a research position by startup Aledia.
Her work on a high-stakes topic, InGaN (indium gallium nitride) nanowire red LEDs, has resulted in four patents. To emit red light, optimally, the material has to contain 35% indium. The problem is that a 35% indium content creates a mismatch in the lattice and dislocations in the standard planar-layered heterostructures. This is detrimental in terms of light emission.
Marion developed original structures made up of a network of nanowires with a pyramidal morphology to solve this problem.
Aledia has even decided to co-finance another PhD candidate’s research at the same Irig lab this year.

*indium gallium nitride

Contact: bruno.daudin@cea.fr

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