Fabrication and study of electrical transport properties of one dimensional metal oxide nanostructures
ABSTRACT :
The one-dimensional (1D) metal oxide nanostructures such as nanorods, nanowires, nanotubes, nanowhiskers etc. have been used as active components in fabricating devices such as solar cell, photodetectors, field-effect transistor (FETs), light-emitting diodes (LEDs) and biological/chemical sensors. These applications are facilitated by using bundle of nanotubes/nanowires consisting of thousands or millions of nanotubes/nanowires. In this research proposal I will present the necessity of studying individual or a cluster of nanostructures (taking TiO2 nanotube as a case study) for better understanding of dimensionality dependent electrical characteritics which can serve as building blocks for emerging nanoelectronics. A single 1D nanostructure shows unidirectional charge transport, quantum confinement, higher specific surface area, electron-hole separation capability etc. My talk will begin with the introduction of 1D nanostructures where I would briefly discuss the motivation behind my research work, the necessary methodologies, the characterization techniques which would be required for my study and some possible applications. Some of the results on the nanostructure and electrical properties of TiO2 nanotubes will be presented.