Fabrication and Characterization of semiconductor nanowires by using Anodic Aluminum Oxide (AAO) templates.
Great interest has been focused on one - dimensional materials, including nanowires and nanodots , because of their unique structure and properties as well as potential applications in electronics and optical devices.(1)
Much effort has been focused on nanostructure formation by self - organizing methods , among them , the anodic aluminum oxide (AAO) templates have received considerable attention in synthetic nanostructure material due to their particular characters (2), such as
Have high porosities ( 1011 pores/cm2 ).
Easley be prepared in the Lab. With good control over the size (length & diameter) of the pores.
Very good periodicity of the pore arrangement can also be obtained.
Porous alumina forms on the surface of aluminum in a self - organized manner when anodized in an acid under specific conditions. Such templates have recently emerged as an important self - assembly method for nanofabrication (3).They
can be used in different methods to synthesize self - assembled arrays of nanowires of a variety of materials, such as metals, semiconductors, alloys, and multilayers. Two of the standard methods that are being used are AC and DC electodeposition. Morphology and characteristics of the nanowires can easily be achieved by releasing the nanowires from the template. Magnetic, electric, transport and optical measurements all contribute toward the exploration of the fundamental properties of nanostructure materials and point toward their technological potential.
In this proposal research, electrodeposition semiconductor nanowires was obtained by AC plating as well as by DC deposition. The morphology of semiconductor nanowires was studied by AFM and SEM. The electric , electronic and optical measurements was also achieved by using different suitable equipments.
In the electrodeposition process , a thin conducting metal film , such as gold ,