Preparation of well-aligned ZnO whiskers on glass substrate by atmospheric MOCVD

Yuan, Huatang; Zhang, Yao

doi:10.1016/j.jcrysgro.2003.11.084

Cited by 96 publications

(57 citation statements)

References 13 publications

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“…It has been demonstrated to have enormous applications in electronic, optoelectronic, electrochemical, and electromechanical devices [3][4][5][6][7][8], such as ultraviolet (UV) lasers [9,10], light-emitting diodes [11], field emission devices [12][13][14], high performance nanosensors [15][16][17], solar cells [18][19][20][21], piezoelectric nanogenerators [22][23][24], and nanopiezotronics [25][26][27]. One-dimensional (1D) ZnO nanostructures have been synthesized by a wide range of techniques, such as wet chemical methods [28][29][30], physical vapor deposition [31][32][33], metal-organic chemical vapor deposition (MOCVD) [34][35][36], molecular beam epitaxy (MBE) [37], pulsed laser deposition [38,39], sputtering [40], flux methods [41], eletrospinning [42][43][44], and even top-down approaches by etching [45]. Among those techniques, physical vapor deposition and flux methods usually require high temperature, and easily incorporate catalysts or impurities into the...…”

Section: Introductionmentioning

confidence: 99%

One-dimensional ZnO nanostructures: Solution growth and functional properties

2011

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One-dimensional (1D) ZnO nanostructures have been studied intensively and extensively over the last decade not only for their remarkable chemical and physical properties, but also for their current and future diverse technological applications. This article gives a comprehensive overview of the progress that has been made within the context of 1D ZnO nanostructures synthesized via wet chemical methods. We will cover the synthetic methodologies and corresponding growth mechanisms, different structures, doping and alloying, positioncontrolled growth on substrates, and finally, their functional properties as catalysts, hydrophobic surfaces, sensors, and in nanoelectronic, optical, optoelectronic, and energy harvesting devices.

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Section: Introductionmentioning

confidence: 99%

One-dimensional ZnO nanostructures: Solution growth and functional properties

2011

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“…Many techniques have been used to prepare ZnO nanomaterials: solgel, 11,12 chemical coprecipitation, 13,14 chemical vapor deposition, 15 metalorganic chemical vapor deposition, 16 spray pyrolysis, 17 hydrothermal synthesis, 18 and inverse microemulsion. 4a,4b,1921 Using these techniques, different particle shapes have been prepared: nanowires, nanorods, nanospheres, nanotubes, and flower-like structures.…”

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confidence: 99%

Synthesis of ZnO and ZnO2 Nanoparticles by the Oil-in-water Microemulsion Reaction Method

et al. 2012

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Crystalline ZnO and ZnO 2 nanoparticles (NPs) were prepared in one-pot oil-in-water (O/W) microemulsion media at room temperature by adding an aqueous solution of sodium hydroxide (followed by H 2 O 2 in the case of synthesis of ZnO 2 ) to the O/W microemulsion containing a Zn(II) organometallic precursor dissolved in the oil phase. After calcination of ZnO 2 NPs, ZnO NPs were also obtained, and their characteristics were compared with those of ZnO NPs prepared directly in O/W microemulsion. The materials were characterized by X-ray diffraction, scanning electron microscopy, and high-resolution transmission electron microscopy. Nanostructured ZnO materials have attracted a lot of attention in recent years because of their optical, electrical, and chemical properties, as well as their low toxicity. These materials are n-type semiconductors with a band gap of 3.37 eV and an exciton binding energy of 60 meV; in addition, they exhibit efficient UV-stimulated emission 1 at room temperature. Nanostructured ZnO has great potential for use in a wide range of applications, for example, in phosphors, 2,3 varistors, 4a,4b gas sensors, 57 UV absorbers, 8 and antimicrobial agents, 9 and more recently, in solar cells.

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“…ZnO NRs with controlled shape and order could be grown by thermal vapor deposition (TVD) (Huang et al, 2001b;Giri et al, 2010;Li et al, 2008;Yao et al, 2002), metal-organic chemical vapor deposition (Yuan & Zhang, 2004;Park et al, 2002;Kim et al, 2009), molecular beam epitaxy (Heo et al, 2002), hydrothermal/solvothermal methods (Breedon et al, 2009;Verges et al, 1990;Alvi et al, 2010;Tak & Yong, 2005;Pacholski et al, 2002;Song & Lim, 2007) and top down approach by etching (Wu et al, 2004). Among those techniques, vapor deposition and chemical methods are the widely used techniques for their versatility about controllability, repeatability, quality and mass production.…”

Section: Growth Of Zno Nanorodsmentioning

confidence: 99%