Room-Temperature Ultraviolet Nanowire Nanolasers

• DOI: 10.1126/science.1060367
• Publication Date: 2002-07-27T09:52:41Z
• Authors: Michael H. Huang; Samuel Mao; Henning Feick; Haoquan Yan; Yiying Wu; Hannes Kind; Eicke Weber; Richard Russo; Peidong Yang
• Keywords: Ultraviolet; Nanolaser; Laser linewidth; Nanometre

Room-temperature ultraviolet lasing in semiconductor nanowire arrays has been demonstrated. The self-organized, <0001> oriented zinc oxide nanowires grown on sapphire substrates were synthesized with a simple vapor transport and condensation process. These wide band-gap form natural laser cavities diameters varying from 20 to 150 nanometers lengths up 10 micrometers. Under optical excitation, surface-emitting action was observed at 385 nanometers, an emission linewidth less than 0.3 nanometer. chemical flexibility the one-dimensionality of make them ideal miniaturized light sources. short-wavelength nanolasers could have myriad applications, including computing, information storage, microanalysis.