Synthesis and Characterization of Ni/Si Nanowires for Electrical Transport
نویسندگان
چکیده
Self-assembled Si nanowires (SiNWs) have been synthesized and characterized as a template for surface metal silicide formation to investigate confinement of electron transport at the nanowire surface. The SiNWs with diameters ranging from 5 to 180 nm were synthesized via the solid-liquid-solid (SLS) mechanism with a sputtered Au film as catalyst. Post-deposition thermal processing was carried out for silicide formation. Metal-silicide coated wires were dispensed on metal-patterned Si wafers to carry out two-point and four-point electrical conductivity measurements. Electrical contacts were formed via FIBbased Pt deposition. Metal-silicide-coated SiNWs exhibited an improvement in electrical conductivity of several orders of magnitude. Preliminary analyses imply variable thickness of the metal silicide region based, in part, on deposition methodology and thermal process parameters.
منابع مشابه
Eco-Friendly Synthesis and Characterization of Ni-Si Nanoparticles Mixed Oxides as Catalyst for
The nanoparticles of Ni–Si mixed oxides were prepared by co-precipitation method using nickel nitrate; Ni(NO3)2 6H2O and tetraethylorthosilicate (TEOS). The products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and hydrogen temperature program reduction (H2-TPR). The results revealed that Ni–Si mixed oxides particles were obtained with average particle ...
متن کاملPreparation and Characterization of Tin Oxide Nanowires
The aim of this research is preparation of SnO2 nanowires by means of Thermal chemical reaction vapor transport deposition (TCRVTD) method from SnO powders. The morphology, chemical composition and microstructure properties of the nanowires are characterized using field emission scanning electron microscope (FE-SEM), EDS, and XRD. The XRD diffraction patterns reveal that the SnO2 nanowires have...
متن کاملNon-lithographic Fabrication of Ni-se Heterojunction Nanowires and their Electrical Characterization
In this paper, heterojunction nanowires of Ni-Se are fabricated via template-assisted electrodeposition process. Nanowires are characterized by scanning electron microscopy (SEM), Energy dispersive X-Ray Spectroscopy (EDS), X-ray diffractometry and electrical transport studies. SEM photographs reveal the uniform and dense growth of Ni-Se nanowires. X-ray diffraction pattern shows the crystallin...
متن کاملEffect of Silicon Nanowire on Crystalline Silicon Solar Cell Characteristics
Nanowires (NWs) are recently used in several sensor or actuator devices to improve their ordered characteristics. Silicon nanowire (Si NW) is one of the most attractive one-dimensional nanostructures semiconductors because of its unique electrical and optical properties. In this paper, silicon nanowire (Si NW), is synthesized and characterized for application in photovoltaic device. Si NWs are ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2008