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5 results on '"Hong-Tao Cong"'

1. Growth of semiconducting single-wall carbon nanotubes with a narrow band-gap distribution

Author

Feng Zhang, Peng-Xiang Hou, Chang Liu, Bing-Wei Wang, Hua Jiang, Mao-Lin Chen, Dong-Ming Sun, Jin-Cheng Li, Hong-Tao Cong, Esko I. Kauppinen, and Hui-Ming Cheng

Subjects
Science
Abstract

Growth of high-quality semiconducting single-wall carbon nanotubes is crucial for high-performance devices. Here, the authors report a partially carbon-coated cobalt nanoparticle catalyst which catalyzes growth of predominantly semiconducting single-wall carbon nanotubes with a narrow band-gap distribution.

Published
2016
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2. Correction: Corrigendum: Growth of semiconducting single-wall carbon nanotubes with a narrow band-gap distribution

Author

Feng Zhang, Peng-Xiang Hou, Chang Liu, Bing-Wei Wang, Hua Jiang, Mao-Lin Chen, Dong-Ming Sun, Jin-Cheng Li, Hong-Tao Cong, Esko I. Kauppinen, and Hui-Ming Cheng

Subjects
Science
Abstract

Nature Communications 7: Article number: 11160 (2016); Published 30 March 2016; Updated 27 April 2016 This Article contains an error in Fig. 6. In Fig. 6a, the units on the y-axis should be ‘μA’ not ‘mA’.

Published
2016
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3. Fabrication and visible emission of single-crystal diameter-modulated gallium phosphide nanochains.

Author

Lu-Tang Fu, Zhi-Gang Chen, Jin Zou, Hong-Tao Cong, and Gao-Qing (Max) Lu

Subjects
CRYSTALS, GALLIUM compounds, NANOCRYSTALS, ZINC, LIGHT sources
Abstract

The diameter-modulated single crystalline gallium phosphide (GaP) nanochains were synthesized by a facile method within a confined reaction zone. By varying the Ga concentration in the reaction zone, the size of knots of GaP nanochains can be manipulated. These zinc-blende structured GaP nanochains with <111> axial directions possess strong visible emissions around 700 nm at room temperature, indicating their potential applications in light sources, laser or light emitting display devices. [ABSTRACT FROM AUTHOR]

Published
2010
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4. Wurtzite P-Doped GaN Triangular Microtubes as Field Emitters

Author

Zhigang Chen, Jin Zou, Hong-Tao Cong, Lu-Tang Fu, Jizi Liu, Lina Cheng, Dawei Wang, Hongyi Xu, and Gao Qing Lu

Subjects
Photoluminescence, Materials science, business.industry, Doping, Cathodoluminescence, Heterojunction, Nanotechnology, Chemical vapor deposition, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Field electron emission, General Energy, Optoelectronics, Nanorod, Physical and Theoretical Chemistry, business, Wurtzite crystal structure
Abstract

Novel P-doped GaN triangular microtubes were synthesized by a facile chemical vapor deposition method. This novel structure consists of a single hexagonal wurtzite phase with a triangular cross section. The tube lengths range from tens of to several hundred micrometers, and each side has a width between 0.5 and 1 mu m, with a tube wall thickness of several tens of nanometers. The formation mechanism of this triangular tubular structure is a vapor solid methanism, as determined by electron microscopy. Extraordinary and stable infrared emission (centered at similar to 724 nm) from the P-doped GaN triangular microtubes was observed from their photoluminescence spectroscopy. The low turn-on field (2.9 V mu m(-1)), high field-enhancement factor, large current density (3 mA cm(-2) at a field of similar to 9.5 V mu m(-1)), and high stability indicate the suitability of P-doped GaN microtubes as potential field emitters. This field emission property is attributed to the specific crystallographic feature-the rigid triangular structures with effective P doping and rough surface hillocks.

Published
2010
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