Vapor–liquid–solid growth of silicon nanowires using organosilane as precursor

Yang, Hee Jun; Yuan, Fang-Wei

doi:10.1039/c0cc01454k

Cited by 21 publications

(13 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Chemical methods, characterized by the use of liquid (or solid) Si precursors and solvents, can be divided into two classes: the first one taking place at ambient or low pressure 28,29 and the second implying high pressure conditions and solvents (e.g., toluene, hexane) in their supercritical state. 30,31 In both cases, liquid organosilanes replace SiH 4 as safer silicon sources while only supercritical growth has been reported to give access to larger quantities (0.1-1.0 g). However, reactions of organosilanes in supercritical medium are complex 32,33 due to simultaneous transformations of the silicon and organic moieties and interactions with the solvent, which makes controlled doping a challenging task.…”

Section: Introductionmentioning

confidence: 99%

Scalable chemical synthesis of doped silicon nanowires for energy applications

et al. 2019

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Scalable chemical synthesis of doped silicon nanowires for energy applications

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Organic solvents may be used to dissolve polymer templates. Particularly, two segments CoNiP and Au were deposited into a nanoporous polycarbonate membrane (50 nm in diameter) in order by changing the corresponding electrolytes in an electrodeposition cell [11,12]. The multisegment CoNiP/Au nanowires were separated from the polycarbonate membrane by dissolving the template in dichloromethane.…”

Section: Methodsmentioning

confidence: 99%

CoNiP/Au Multisegment Magnetic Nanowires: Synthesis and Aminothiophenol (4-ATP) Functionalization

Ngoc¹,

Nu²,

Thiem³

et al. 2017

MaP

View full text Add to dashboard Cite

Abstract:The magnetic properties in CoNiP/Au multisegments nanowire were investigated. All the samples were prepared by electrodeposition method with pH of 5.5 and room temperature. The electrochemical potential of CoNiP was determined by cycle voltammetary. The crystalline structure and morphology of the samples were characterized by X-ray diffraction (XRD), Scanning Electron Miroscopy (SEM) and High-resolution transmission electron microscopy (HRTEM), respectively. The hysteresis loops were measured at room temperature using vibrating sample magnetometry (VSM). The SEM and TEM image showed that the CoNiP/Au nanowires with diameters about 50 nm. The lattice spacing of the CoNiP samples were 0.205 nm. The obtained results of VSM show that, the coercivity is 1006 Oe. The 4-Aminothiophenol (4-ATP) functionalized CoNiP/Au were combined by inverse emulsion method in order to apply to biomedicine. The characteristic Surface Enhanced Raman peak positions of 4-ATP absorbed on the Au segments were occurred without any alterations, which significantly predicted attractive applicability of the colloids for biomedical labeling.

show abstract

“…For instance, template-electrodeposition has been used for the formation of various types of nanowires like Ag nanowires and CdS nanowires 4,5,6,7,8,9,10 . Another common approach is vapor-liquid-solid (VLS) growth, which employs a molten catalyst to induce the anisotropic growth on the substrate at an elevated temperature 11 . Common strategies for the synthesis of metal nanowires are the polyol methods for Ag nanowires and the oleylamine-assisted ultrathin Au nanowires 12,13,14,15 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Substrate-Bound Au Nanowires Via an Active Surface Growth Mechanism

Wang

et al. 2018

JoVE

View full text Add to dashboard Cite

Advancing synthetic capabilities is important for the development of nanoscience and nanotechnology. The synthesis of nanowires has always been a challenge, as it requires asymmetric growth of symmetric crystals. Here, we report a distinctive synthesis of substrate-bound Au nanowires. This template-free synthesis employs thiolated ligands and substrate adsorption to achieve the continuous asymmetric deposition of Au in solution at ambient conditions. The thiolated ligand prevented the Au deposition on the exposed surface of the seeds, so the Au deposition only occurs at the interface between the Au seeds and the substrate. The side of the newly deposited Au nanowires is immediately covered with the thiolated ligand, while the bottom facing the substrate remains ligand-free and active for the next round of Au deposition. We further demonstrate that this Au nanowire growth can be induced on various substrates, and different thiolated ligands can be used to regulate the surface chemistry of the nanowires. The diameter of the nanowires can also be controlled with mixed ligands, in which another "bad" ligand could turn on the lateral growth. With the understanding of the mechanism, Au nanowire-based nanostructures can be designed and synthesized.

show abstract

Vapor–liquid–solid growth of silicon nanowires using organosilane as precursor

Abstract: Utilizing monophenylsilane as the precursor and liquid injection chemical vapor deposition (LICVD) as the fabrication method offers a novel synthetic approach for the facile, ambient pressure, and continuous vapor-liquid-solid (VLS) synthesis of high quality Si nanowires.

Cited by 21 publications

References 29 publications

Scalable chemical synthesis of doped silicon nanowires for energy applications

Scalable chemical synthesis of doped silicon nanowires for energy applications

CoNiP/Au Multisegment Magnetic Nanowires: Synthesis and Aminothiophenol (4-ATP) Functionalization

Synthesis of Substrate-Bound Au Nanowires Via an Active Surface Growth Mechanism

Contact Info

Product

Resources

About