Characterization of silicon nanowires grown on silicon, stainless steel and indium tin oxide substrates

Jennings, P.J.; Jiang, Zhong Tao; Wyatt, Nicholas M. W.; Parlevliet, David; Creagh, Christine; Yin, Chunyang; Widjaja, Hantarto; Mondinos, Nicholas

doi:10.1007/s00339-013-7567-9

Cited by 6 publications

(4 citation statements)

References 21 publications

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“…These structures afford good uni-directional conductivity [1] which is evidently useful for electronics applications [2]. There are currently a myriad of methods used to synthesize 1D nanostructures, namely, chemical vapor deposition [3], precursor decomposition, solvothermal, hydrothermal and carbothermal methods [4]. Hydrothermal is a very popular and cost-effective method for such synthesis due to its inherent simplicity in crystallizing materials from aqueous solutions at mild temperatures [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Crystallinity and morphological evolution of hydrothermally synthesized potassium manganese oxide nanowires

Haris

Yin

Jiang

et al. 2014

Ceramics International

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. (211), (301) and (600) were observed along with traces of MnO 2 , resulting in a wool-like nanowires suspension.

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Section: Introductionmentioning

confidence: 99%

Crystallinity and morphological evolution of hydrothermally synthesized potassium manganese oxide nanowires

Haris

Yin

Jiang

et al. 2014

Ceramics International

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“…Formation of NPs for catalytic growth of Si NWs on different substrates, including Si, stainless steel, Al foil, and glass substrate, was performed at 550 °C to keep the same temperature in the PECVD chamber for H 2 plasma treatments followed by the vapor–liquid–solid (VLS) growth. VLS growth of Si NWs on Si and stainless steel substrates has been reported in publications . Figure shows SEM images of NPs formed on different substrates processed in H 2 plasma at 550 °C.…”

Section: Resultsmentioning

confidence: 99%

“…In particular, metallic NPs (noble metals, mainly) can be used to enhance the absorption of light based on surface plasmon effects or to form conductive nanocontacts in the nanostructure‐based solar cells . Moreover, some metallic NPs (such as Au, Ag, Al, In, and Sn) can function as the catalyst for the synthesis of Si nanowires (NWs), which can be utilized for fabrication of advanced Si‐based solar cell structures . Formation of In‐based NPs using hydrogen initiated reduction process of indium tin oxide (ITO) films is of a specific interest because of versatile applications of ITO layers in manufacturing of different types of solar cells.…”

Section: Introductionmentioning

confidence: 99%

Plasma treatment of ITO films for the formation of nanoparticles toward scalable production of novel nanostructure-based solar cells

Eisenhawer

Jia

et al. 2014

Phys. Status Solidi A

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Plasma treatment of indium tin oxide (ITO) has been studied to form metallic nanoparticles (NPs) for nanostructure‐based solar cells. It is demonstrated that NPs can be formed at temperatures as low as 100 °C, and the size of NPs increases with temperature. An ITO layer treated at 100 °C has higher transmission than that treated at 200 °C for the same time. It is suggested that such NPs can be used for the conversion efficiency enhancement of ITO/Si heterojunction solar cells. It is also shown that NPs can be produced on different substrates covered by an ITO layer, such as ITO/Al foil, ITO/glass, ITO/stainless steel, and ITO/Si, where the resulting NPs were used for catalytic growth of Si nanowires (NWs). The morphology and density of Si NWs depend on a substrate. It is established that p‐doped Si NWs show larger diameters, and n‐doped Si NWs do not show obvious change of diameters compared to undoped Si NWs. New types of solar cell structures with combined radial and axial junctions have been proposed. As an example, p–n junction‐based 3D structures using the NPs obtained from treatment of ITO film are presented. Finally, a potentially scalable process flow for fabrication of nanostructure‐based solar cells is discussed. Schematic illustration of fabrication steps to produce the proposed novel solar cell with combined radial and axial junctions.

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“…With all of its many advantages, stainless steel is not usually thought of as a viable chemical substrate by itself. For example, the direct growth of silicon nanowires on stainless steel substrates mostly requires the use of external catalytic nanoseeds, ,− although it was just recently found that silicon nanowires can be grown with no control over their density in the absence of catalysts at harsh experimental conditions, such as very high temperatures and hydrogen flow rates . Because of these reasons, stainless steel can be considered as a noncatalytic substrate for the growth of silicon nanostructures.…”

Section: Resultsmentioning

confidence: 99%

Large-Scale Self-Catalyzed Spongelike Silicon Nano-Network-Based 3D Anodes for High-Capacity Lithium-Ion Batteries

et al. 2019

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Here, we report on the large-scale one-step preparation, characterization, and application of three-dimensional spongelike silicon alloy composite anodes, based on the catalyst-free growth of porous silicon nanonetworks directly onto highly conductive and flexible open-structure stainless steel current collectors. By the use of a key hydrofluoric-acid-based chemical pretreatment process, the originally noncatalytic stainless steel matrix becomes nanoporous and highly self-catalytic, thus greatly promoting the formation of a silicon spongelike network at unexpectedly low growth temperatures, 380−460 °C. Modulation of this unique chemical pretreatment allows control over the morphology and loading properties of the resulting silicon network. The spongelike silicon network growth is capable of completely filling the openings of the three-dimensional stainless steel substrates, thus allowing full control over the active material loading, while conserving high mechanical and chemical stabilities. Furthermore, extremely high silicon loadings are reached because of the supercatalytic nanoporous nature of the chemically treated stainless steel substrates (0.5−20 mg/cm 2 ). This approach leads to the realization of highly electrically conductive Si− stainless steel composite anodes, due to the formation of silicon-network-to-stainless-steel contact sections composed of highly conductive metal silicide alloys, thus improving the electrical interface and mechanical stability between the silicon active network and the highly conductive metal current collector. More importantly, our one-step cost-effective growth approach allows the large-scale preparation of highly homogeneous ultrathin binder-free anodes, up to 2 m long, using a home-built CVD setup. Finally, we made use of these novel anodes for the assembly of Li-ion batteries exhibiting stable cycle life (cycled for over 500 cycles with <50% capacity loss at 0.1 mA), high gravimetric capacity (>3500 mA h/g Si at 0.1 mA/cm 2 ), low irreversible capacity (<10%), and high Coulombic efficiency (>99.5%). Notably, these Si spongelike composite anodes of novel architecture meet the requirements of lithium batteries for future portable and electric-vehicle applications.

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Characterization of silicon nanowires grown on silicon, stainless steel and indium tin oxide substrates

Cited by 6 publications

References 21 publications

Crystallinity and morphological evolution of hydrothermally synthesized potassium manganese oxide nanowires

Crystallinity and morphological evolution of hydrothermally synthesized potassium manganese oxide nanowires

Plasma treatment of ITO films for the formation of nanoparticles toward scalable production of novel nanostructure-based solar cells

Large-Scale Self-Catalyzed Spongelike Silicon Nano-Network-Based 3D Anodes for High-Capacity Lithium-Ion Batteries

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