Crystalline gallium oxide nanowires: intensive blue light emitters

Wu, Xingcai; Song, Wenhai; Huang, Weimin; Pu, M.H.; Zhao, Boyang; Sun, Yanbin; Du, Juan

doi:10.1016/s0009-2614(00)00899-x

Cited by 192 publications

(76 citation statements)

References 17 publications

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“…have been synthesized into nanowire and nanobelt structures and were successfully integrated into numerous optoelectronic applications and nanoscopic gas sensors [15][16][17][18] .…”

Section: Introductionmentioning

confidence: 99%

Controlled Vapor−Liquid−Solid Growth of Indium, Gallium, and Tin Oxide Nanowires via Chemical Vapor Transport

Johnson

Aloni

McCready

et al. 2006

Crystal Growth & Design

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We utilized a vapor-liquid-solid growth technique to synthesize indium oxide, gallium oxide, and tin oxide nanowires using chemical vapor transport with gold nanoparticles as the catalyst. Using identical growth parameters we were able to synthesize single crystal nanowires typically 40-100 nm diameter and more than 10-100 microns long. The products were characterized by means of XRD, SEM and HRTEM. All the wires were grown under the same growth conditions with growth rates inversely proportional to the source metal vapor pressure. Initial experiments show that different transparent oxide nanowires can be grown simultaneously on a single substrate with potential application for multi-component gas sensors.

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“…have been synthesized into nanowire and nanobelt structures and were successfully integrated into numerous optoelectronic applications and nanoscopic gas sensors [15][16][17][18] .…”

Section: Introductionmentioning

confidence: 99%

Controlled Vapor−Liquid−Solid Growth of Indium, Gallium, and Tin Oxide Nanowires via Chemical Vapor Transport

Johnson

Aloni

McCready

et al. 2006

Crystal Growth & Design

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“…It behaves as an insulator below 800 • C. At higher temperatures, it exhibits semiconductor properties. The wide bandgap of 4.8 eV has led to its application in various optoelectrical devices [3] such as transparent semiconductors in ultraviolet light-emitting diodes (UV-LEDs) [4], thin-film transistors [5] and gas sensors [6]. Ga 2 O 3 has been widely used as a precursor in the gallium nitride (GaN) synthesis via chemical vapour deposition [7,8].…”

Section: Introductionmentioning

confidence: 99%

Influence of the Nanostructure of Gallium Oxide Catalysts on Conversion in the Green Synthesis of Carbamates

Shah

Ratnasamy²,

Carreon

2017

Catalysts

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Abstract:The nanostructure of β-gallium oxide crystals influences the conversion to carbamates; specifically, for the synthesis of alkyl carbamates (like propyl N-octylcarbamate) from CO 2 and n-propanol in the absence of phosgene. The nanostructures with variable aspect ratios (length (L)/width (D); from 2 to 18) were prepared by the controlled addition of neutral and cationic surfactants during gallium oxide synthesis. These catalysts displayed selectivities to the corresponding carbamates as high as~70%, superior to non-nanostructured Ga 2 O 3 catalysts. The conversion was found to be inversely proportional to the square of the relative crystallinity. The catalysts retained their structure and catalytic performance upon recycling.

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“…Research interests in metal oxide nanowires commenced in 1990s. Up to now, there have been a considerable number of reports on success in the synthesis of 1-dimensional nanocrystalline structured nanowires of various metal oxides, such as CuO (Wang, Zhan et al 2001;Jiang, Herricks et al 2002), MgO (Ma and Bando 2003), ZnO (Tian, Voigt et al 2003;Vayssieres 2003;Heo, Norton et al 2004;Wang, Song et al 2007;Manoharan, Desai et al 2008), TiO 2 (Lakshmi, Partissi et al 1997;Li and Wang 1999;Li and Xia 2003;Wu, Shih et al 2005;Wu, Shih et al 2006), Al 2 O 3 (Valcarcel, Souto et al 1998;Xiao, Han et al 2002), Ga 2 O 3 (Wu, Song et al 2000), In 2 O 3 (Li, Zhang et al 2003), SnO 2 (Dai, Pan et al 2001), Sb 2 O 5 (Guo, Wu et al 2000), V 2 O 5 (Chen, Sun et al 2002), BaTiO 3 (Urban, Spanier et al 2003), etc. The methodology of synthesis is now well developed.…”

Section: Introductionmentioning

confidence: 99%

“…The methodology of synthesis is now well developed. Reported techniques include vapor-solid phase technique (Valcarcel, Souto et al 1998;Wu, Song et al 2000;Jiang, Herricks et al 2002;Ma and Bando 2003;Wu, Shih et al 2005;Wu, Shih et al 2006), chemical solution deposition (sol-gel) (Lakshmi, Partissi et al 1997;Urban, Spanier et al 2003), template etching (Xiao, Han et al 2002), percipitation (Tian, Voigt et al 2003;Vayssieres 2003), micro-emulsion (Guo, Wu et al 2000), flux growth (Dai, Pan et al 2001) and others. These are well reviewed by Shangkar et al (Shankar and Raychaudhuri 2005).…”

Section: Introductionmentioning

confidence: 99%