Volume 92 Issue 45 | p. 28 | Concentrates
Issue Date: November 10, 2014

Extending The Reach Of 3-D Printing

Researchers print an entire quantum dot LED for the first time
Department: Science & Technology
News Channels: Materials SCENE, Nano SCENE
Keywords: 3-D print, LED, quantum dot, cadmium seleninde

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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