Light-Emitting Nanocrystal Diodes Emit UltraViolet

A multinational team of scientists has developed a process for creating glass-based, inorganic UV LEDs. The work was reported online this week in Nature Communications. The researchers say it is a step toward biomedical devices with active components made from nanostructured systems. The paper describes a new glass-based material that can emit light in the ultraviolet spectrum and be integrated onto silicon chips. The research team notes that LEDs based on solution-processed inorganic nanocrystals have promise for use in environmental and biomedical diagnostics, because they are cheap to produce, robust, and chemically stable. However, achieving ultraviolet emission has reportedly been difficult.

Los Alamos National Laboratory’s Sergio Brovelli in collaboration with the research team lead by Alberto Paleari at the University of Milano-Bicocca in Italy in their paper describe a fabrication process that claims to overcome this problem and allows integration into a variety of applications.