Jornal de Nanomedicina e Nanotecnologia

Abstrato

Nanowires: Innovative Control Growth and Applications of Silicon Crystals in 1D

Maha M Khayyat

This article reviews the growth concept of silicon nanowires with an attention to semiconductor nanowires filling the gap in the knowledge from the very original work to the very recent innovative experimental work. The objectives of this article are as follows; 1-to describe the original work of epitaxial growth of semiconductor nanowires, 2-to discuss the recently emerged technique of nanoscale templating controlling the growth position of nanowires, and 3-to explore the possible technological applications of position-controlled silicon nanowires. Detailed description of the first reported successful Vapor Liquid Solid (VLS) 1-D growth of silicon crystals is presented. Bottom-up approach and the supersaturation in a three-phase system then the nucleation at the Chemical Vapor Deposition (CVD) processes are discussed with more focus on silicon. Positional assembly of nanowires using current available techniques including Nanoscale Chemical Templating (NCT) can be considered as the key part of this document for advanced applications. Several applied and conceptional methods of developing available technologies using nanowires are included, such as, Atomic Force Microscopy (AFM), Photovoltaic (PV) cells, and Metal Oxide Semiconductor Field Effect Transistors (MOSFET) are explained. The finial section of this review is devoted to the future trend in silicon nanowires research, where it is anticipated that the effort will proceed further to be implemented in daily electronic tools satisfying the demand of low wights and sizes electronics.