Electrically Controlled Catalytic Nanowire Growth from Solution

Dorn, August; Wong, Cliff; Bawendi, Moungi G.

doi:10.1002/adma.200900086

Cited by 30 publications

(45 citation statements)

References 33 publications

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“…This behavior could be related to the zinc-blende crystal structure of InP and the twinning behavior observed in MOCVD grown InP nanowires by Woo et al 29 In contrast, CdSe nanowires grown by the EC-SLS technique show a high degree of crystallinity owing to their preferred growth direction along the (001) axis of the wurtzite crystal lattice. 13 We attribute the approximately 5 nm thick amorphous Figure 3d. The higher average atomic percentage of indium, 56%, relative to phosphorus, 44%, can be attributed to the indium-rich native oxide layer typically observed on InP.…”

Section: Resultsmentioning

confidence: 99%

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Electrically Controlling and Monitoring InP Nanowire Growth from Solution

2009

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Indium phosphide nanowires are of significant technological interest for applications ranging from single junction solar cells to high speed electronics. However, the efficient placement and integration of nanowires into devices remains a significant challenge. Here we extend the technique of electrically controlled solution-liquid-solid (EC-SLS) catalytic nanowire growth to indium phosphide. We are able to control the amount of nanowire growth by varying the bias voltage between the electrodes in solution, and to monitor nanowire bridging across the electrodes by recording the conductivity as a function of growth time. The as-grown indium phosphide nanowires exhibit n-type conductivity as was determined by the in situ integration of nanowires into a field effect transistor geometry. The ability to monitor nanowire growth and electrically control nanowire placement are valuable tools for fabricating nanowire devices. The EC-SLS process has the potential to aid in the fabrication of nanowire devices that could find applications in nanoelectronics, and as electrodes in solar cells and batteries.

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Section: Resultsmentioning

confidence: 99%

“…13 The EC-SLS method enables the simultaneous synthesis and integration of nanowires into device geometries. In this article, we extend the EC-SLS technique to the growth of InP nanowires.…”

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confidence: 99%

Electrically Controlling and Monitoring InP Nanowire Growth from Solution

2009

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“…[49] For preparing an Au-Si eutectic compound, a temperature higher than the boiling point of the solvent is required. In a recent paper, the electrically controlled solution-liquid-solid (EC-SLS) method was designed by Dorn et al [51] By using this method, they reported the synthesis of CdSe and InP nanowires that were controllably grown between two electrodes. After the formation of Au-Si alloy, the further growth processes seemed very analogous to those in the case of the VLS or SLS method.…”

Section: The Solution-liquid-solid (Sls) Synthetic Methods For Semiconmentioning

confidence: 99%

“…Therefore, nanowires were synthesized in the supercritical solution phase. [51,52] This method facilitates the direct integration of solution processed nanowires into devices. From this result, they proposed the supercritical-fluid-liquid-solid (SFLS) synthetic method.…”

Section: The Solution-liquid-solid (Sls) Synthetic Methods For Semiconmentioning

confidence: 99%

Various Synthetic Methods for One‐Dimensional Semiconductor Nanowires/Nanorods and Their Applications in Photovoltaic Devices

Chun

Lee

2010

Eur J Inorg Chem

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In this microreview, the recent progress on various synthetic methods for 1D semiconductor nanowires is summarized. The colloidal synthetic method has been popularly employed to prepare various semiconductor nanorods/nanowires such as ZnS and TiO2. The vapor–liquid–solid (VLS) synthetic method has been used to fabricate Si and ZnO nanowires. For the growth of semiconductor nanowires by the VLS method, metals that can form a eutectic mixture with a target material have been used as catalysts. After the first report on the synthesis of crystalline III–V semiconductor nanowires by the solution–liquid–solid (SLS) method, various kinds ofIII–V and II–VI semiconductor nanowires have been synthesized by the SLS method. Various types of templates, including anodic aluminum oxide (AAO), sacrificial nanowire templates, and self‐assembled surfactants, have been employed to fabricate 1D semiconductor nanowires that resemble the shape of the template employed. Using 1D semiconductor nanowires, high‐performance photovoltaic cells can be fabricated due to facile electron transport within nanowires.

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“…The most promising and now extensively used method for achieving novel structures is solution process [1][2][3][4][5][6]. Recently, many efforts have been focused on the organization of low-dimensional building blocks into two-and three-dimensional (2D and 3D) hierarchical structures.…”

Section: Introductionmentioning

confidence: 99%