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

To: kinkblot who wrote (496)	8/1/2002 10:51:49 AM
From: John Finley	Read Replies (1) \| Respond to of 565

Thanks Will. The trouble with the AIP is that they want too much money for their papers. If it were $3 to $5 I'd spring for it just to read articles of casual interest. At $19 I'll just go to the library and copy it if I'm really interested. I mean it's not like that the AIP had to PAY for the paper or anything <g>. They're just supposed to disseminate science... JF

To: kinkblot who wrote (496)	8/13/2002 1:28:43 PM
From: kinkblot	Read Replies (1) \| Respond to of 565

Imperial College, Centre for Electronic Materials & Devices ee.ic.ac.uk see Research Programmes --> Lasers, LEDs and Modulators --> Efficient LEDs from Self-assembled Quantum Dots Initial attempts to fabricate quantum dots by lithographic means failed largely due to the damage introduced during processing. However QDs with dimensions of only a few nm form naturally when a semiconductor such as InAs is grown on GaAs by Molecular Beam Epitaxy. The detailed nature of their formation is still not known but it is clear that carriers are confined effectively in these tiny structures. Researchers: David Childs, Jonathan Gray, Surama Malik, Ray Murray, Gareth Parry, Christine Roberts, Philip Siverns, Paul Stavrinou, Mark Whitehead [this research published ~Y2000] Several other groups are also investigating optical properties of quantum dots. I'm sure they have entire conferences on this. However, Kopin appears to be working with structures about one order of magnitude larger than the dot people or on the order of tens to hundreds of nm. Thus, a nanopocket could hold about 25*pi nanodots. <g> WT