First Advisor

Shankar B. Rananavare

Term of Graduation

Summer 2008

Date of Publication


Document Type


Degree Name

Doctor of Philosophy (Ph.D.) in Chemistry






Nanostructured materials, Nanowires



Physical Description

1 online resource (2, xii, 144 pages)


Contemporary VLS-SiNW synthetic methods employ CVD and laser ablation methods that produce single crystalline SiNW; which can be doped by co-flowing appropriate dopants, such as diborane (p-type) and phosphine (n-type). Not only are these gases toxic (non-green), but also the synthetic methods used are costly requiring elaborate instrumental assembly. This thesis presents a low-cost and "green" method in synthesizing and doping of SiNW in a glass tube. It was found that by selecting the appropriate metal catalyst, precursor reactants, and the reaction conditions both SiNW and carbon nanotube (CNT) can be synthesized on metallic (aluminum and copper), semiconducting (silicon) and insulating substrates (borosilicate and fiber glass). By choosing an appropriate NW growth catalyst (antimony and aluminum) or dopantcontaining organic compounds soluble in the silicon precursor (diphenylsilane) SiNW can be readily doped. During these studies, formation of metallurgical junctions between nanowires was observed due to surface adhering growth of SiNWs. Such junctions are useful for next generation of nanoarchitecture based on grid structure as advocated by Likharev94. The methods developed here can address some of the major issues in integrating SiNWs in nanoelectronics related to reducing their contact resistance, improved doping and crafting metallurgical junctions.


In Copyright. URI:

This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).


If you are the rightful copyright holder of this dissertation or thesis and wish to have it removed from the Open Access Collection, please submit a request to and include clear identification of the work, preferably with URL.

Persistent Identifier

Included in

Chemistry Commons