Non-destructive food-quality analysis using near-infrared luminescence from Mg

Rapid, non-destructive food-quality analysis using near-infrared (NIR) photoluminescence spectroscopy produced by phosphor-converted light-emitting diodes (pc-LEDs) has fascinating prospects for future food-safety monitoring. However, covering the energy window for organic molecular vibrations of interest in these applications requires NIR-emitting phosphors that are highly energy-efficient with ultra-broadband photoluminescence. This remains a materials design challenge. Here, a Cr