News of the WeekOptoelectronics

Blue Semiconductors Settle on Silicon

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Science  28 Jan 2000:
Vol. 287, Issue 5453, pp. 561-562
DOI: 10.1126/science.287.5453.561a

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In the 17 January issue of Applied Physics Letters, researchers describe a scheme for producing blue and green light-emitting diodes (LEDs) on a base of silicon, the cheap and ubiquitous substrate for microelectronics. They've also managed to make small LEDs just where they want them on the chip, an important step toward complex displays made up of thousands of separately controlled lighting elements.