Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Technology Stocks : White light from LED -- Ignore unavailable to you. Want to Upgrade?

To: John Finley who wrote (27)	11/8/1999 9:29:00 AM
From: kinkblot	Respond to of 565

Thanks, John. I have a paper Bulletin handy. The article "Optoelectronic Properties and Applications of Rare-Earth-Doped GaN" by Steckl and Zavada looks interesting for display applications. Here's what they're working on, from page 37: If two or more RE elements incorporated into GaN emit in the visible simultaneously, the human eye would perceive an additive mixture of the colors. It should be possible to adjust the relative concentrations of the RE dopants in GaN, and hence the intensities of the corresponding wavelengths, so that the mixture would produce any color throughout the visible spectrum. That would be 'The right light from ELD'. <g> The cover photo is a collage of these electroluminescent devices, demonstrating the three primary colors (red, green, and blue from Eu, Er, and Tm) and an additive color (turquoise from Er + Tm). Nice! WT