CE42 - Capteurs, instrumentation

ImagiNg carrier DynamIcs at the nANoscAle thanks to light- and electron-matter interactions – INDIANA

Submission summary

The performance optimization of optoelectronic devices requires a precise knowledge of the semiconductor materials properties at the nanoscale. To go beyond the inherent limits of both far-field optical microscopy and cathodoluminescence spectroscopy, the INDIANA project propose to simultaneously probe light-matter and electron-matter interactions to access fundamental optical properties at the nanoscale. This new correlative technique will be used to explore three research directions. We will first estimate micro-LEDs efficiency at the nanoscale. Then, by exciting simultaneously an LED with an electron beam and a below band gap excitation laser, we will investigate the influence of point defects on blue LED efficiency at the nanoscale. Finally, we will use the technique in a pump-probe configuration to access to the local temperature of diamond power electronic devices with a temporal resolution better than 1 µs.

Project coordinator

Monsieur Gwénolé JACOPIN (Institut Néel)

The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.


NEEL Institut Néel

Help of the ANR 241,335 euros
Beginning and duration of the scientific project: March 2022 - 42 Months

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