Design and Fabrication of Nanostructures Silicon Photodiode

Fabrication and enhanced field emission properties of novel silicon nanostructures

We reported the fabrication and the field emission properties of two-tier novel silicon nanostructures. First, silicon nanopillars with ordered high aspect ratio were achieved by using conventional lithographic techniques to act as the field emission sources. Second, sharp-edged well-aligned silicon nanograss was fabricated on top of the nanopillars by means of hydrogen plasma dry etching to in...

Fabrication of silicon nanostructures with a scanning tunneling microscope

A technique is presented for fabricating Si nanostructures with a scanning tunneling microscope operated in air. The process involves the direct chemical modification of a H-passivated Si( 100) surface and a subsequent liquid etch. The chemically modified portions of the surface can withstand a deep ( > 100 nm) liquid etch of the unmodified regions with no etch degradation of the modified surfa...

Fabrication of arbitrarily shaped silicon and silicon oxide nanostructures using tip- based nanofabrication

Design and fabrication of Ni nanowires having periodically hollow nanostructures.

We propose a concept for the design and fabrication of metal nanowires having periodically hollow nanostructures inside the pores of an anodic aluminum oxide (AAO) membrane using a sacrificial metal. In this study, nickel (Ni) and silver (Ag) were used as the base metal and the sacrificial metal, respectively. Alternating an applied potential between -0.4 and -1.0 V provided alternatively depos...

Comparison of the current of UV ray radiation on PIN Silicon photodiode and Gallium Arsenide

The high-energy UV ray radiation on PIN Silicon photodiodes reduces the optimal parameters of these photodiodes. In this paper, by representing a model, we compare the effect of UV dose on the bright current in these two types of photodiodes and confirm the analytic relationships in order to simulate a model with the help of the Silvaco- Atlas software. In this model, Silicon photodiodes and Ga...