Siemens and OSRAM Developed Novel Deep Red Phosphor for LEDs

Nov 21, 2011 Electronics News reports an exciting research development  from Siemens Corporate Technology and OSRAM. Using a High Throughput Experimentation (THE) they were able to develop  new dark red luminescent material suited for light-emitting diodes.The novel luminescent material is intended for general lighting warm-toned white LEDs, LCD backlights, and automotive LED applications.

According to the report High Throughput Experimentation (THE) allows the screening of large composition areas of complex material systems. HTE technology allows automated experiment planning to efficiently find new variants of phosphors. The same technology also provides a way to establish, characterise and evaluate material libraries of material samples.

In their HT experiments, the researchers analysed over 660 sample variants from twelve different material combinations over a period of just a few months to determine emission wavelength, light intensity, and structural phases.

The new, dark red-emitting luminescent material belongs to the large compound class of oxynitrides that permits a wavelength shift of up to 30 nanometers into the dark red range.

Source: http://www.electronicsnews.com.au/news/dark-red-phosphor-for-leds

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