Issue Date: November 10, 2014
Extending The Reach Of 3-D Printing
Researchers led by Michael C. McAlpine of Princeton University have fabricated the first quantum dot light-emitting diodes (LEDs) built using only a three-dimensional printer (Nano Lett. 2014, DOI: 10.1021/nl5033292). Most 3-D printers are used to pattern plastics, metallic inks, and some biological materials, McAlpine says, but not fully printed semiconductor devices. To print an entire LED, the Princeton researchers had to make careful materials . . .
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