Journal ArticleDOI
Room-temperature ultraviolet nanowire nanolasers
Michael H. Huang,Samuel S. Mao,Henning Feick,Haoquan Yan,Yiying Wu,Hannes Kind,Eicke R. Weber,Richard E. Russo,Peidong Yang,Peidong Yang +9 more
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TLDR
Room-temperature ultraviolet lasing in semiconductor nanowire arrays has been demonstrated and self-organized, <0001> oriented zinc oxide nanowires grown on sapphire substrates were synthesized with a simple vapor transport and condensation process.Abstract:
Room-temperature ultraviolet lasing in semiconductor nanowire arrays has been demonstrated The self-organized, oriented zinc oxide nanowires grown on sapphire substrates were synthesized with a simple vapor transport and condensation process These wide band-gap semiconductor nanowires form natural laser cavities with diameters varying from 20 to 150 nanometers and lengths up to 10 micrometers Under optical excitation, surface-emitting lasing action was observed at 385 nanometers, with an emission linewidth less than 03 nanometer The chemical flexibility and the one-dimensionality of the nanowires make them ideal miniaturized laser light sources These short-wavelength nanolasers could have myriad applications, including optical computing, information storage, and microanalysisread more
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Al-doped ZnO: Electronic, electrical and structural properties
Frank Maldonado,Arvids Stashans +1 more
TL;DR: In this paper, changes in structural, electrical and electronic properties of zinc oxide (ZnO) due to Al doping are studied using a quantum-chemical approach based on the Hartree-Fock theory.
Journal ArticleDOI
Direct observation of the structural component of the metal-insulator phase transition and growth habits of epitaxially grown VO2 nanowires.
Jung Inn Sohn,Heung Jin Joo,Alexandra E. Porter,Chel-Jong Choi,Ki-nam Kim,Dae Joon Kang,Mark E. Welland +6 more
TL;DR: Electron microscopy results reveal that single crystalline VO2 nanowires having a [100] growth direction grow laterally on the basal c plane and out of the basal r and a planes of sapphire, exhibiting triangular and rectangular cross sections, respectively.
Journal ArticleDOI
Growth Control and Optics of Organic Nanoaggregates
Frank Balzer,Horst-Günter Rubahn +1 more
TL;DR: In this paper, the authors demonstrate that p-6P nanofibers can be grown with high control of the morphology of individual nanoaggregates and also of the mutual alignment of aggregates by the use of appropriate growth conditions and substrate surfaces.
Journal ArticleDOI
A ZnO nanowire-based humidity sensor
Sheng Po Chang,Shoou-Jinn Chang,C. Y. Lu,Meng-Ju Li,Cheng-Liang Hsu,Yu-Zung Chiou,Ting-Jen Hsueh,I-Cherng Chen +7 more
TL;DR: In this paper, the growth of high-density single crystalline ZnO nanowires on patterned templates was reported, and a humidity sensor was then fabricated using the randomly oriented nanowsires bridged across two electrodes.
Journal ArticleDOI
Microstructure control of ZnO thin films prepared by single source chemical vapor deposition
TL;DR: In this paper, the columnar structure of ZnO thin films with respect to the incident angle prepared by single source chemical vapor deposition (SS CVD) on Si (1/0/0) substrate was examined.
References
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Journal ArticleDOI
Indium phosphide nanowires as building blocks for nanoscale electronic and optoelectronic devices
TL;DR: The assembly of functional nanoscale devices from indium phosphide nanowires, the electrical properties of which are controlled by selective doping are reported, and electric-field-directed assembly can be used to create highly integrated device arrays from nanowire building blocks.
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Catalytic Growth of Zinc Oxide Nanowires by Vapor Transport
TL;DR: In this paper, the capacitance matrix was calculated for different chain lengths using the software package FastCap MIT (1992) and a ligand shell dielectric constant of 3.14 aF.
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Optical gain and stimulated emission in nanocrystal quantum dots.
Victor I. Klimov,Alexander Mikhailovsky,S. Xu,Anton V. Malko,Jennifer A. Hollingsworth,C. A. Leatherdale,H.-J. Eisler,Moungi G. Bawendi +7 more
TL;DR: In this article, the authors examined the competing dynamical processes involved in optical amplification and lasing in nanocrystal quantum dots and found that, despite a highly efficient intrinsic nonradiative Auger recombination, large optical gain can be developed at the wavelength of the emitting transition for close-packed solids of these dots.
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Optical gain in silicon nanocrystals
TL;DR: It is demonstrated that light amplification is possible using silicon itself, in the form of quantum dots dispersed in a silicon dioxide matrix, which opens a route to the fabrication of a silicon laser.
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Optically pumped lasing of ZnO at room temperature
TL;DR: In this paper, the authors reported the observation of optically pumped lasing in ZnO at room temperature using a plasma-enhanced molecular beam epitaxy on sapphire substrates.