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Title: Structural, optical and electrical properties of some metal oxide nanomaterials
Researcher: Arham Shareef Ahmed
Guide(s): Ameer Azam
Keywords: Applied Physics
Upload Date: 19-Sep-2013
University: Aligarh Muslim University
Completed Date: 2012
Abstract: Materials with dimensions in the nanometer regime exhibit the properties which are remarkably different from their bulk counterpart, as a result of which, researchers and scientists are motivated to log the changes in properties that occur with decreasing size and explore the reasons behind the novel properties of nanomaterials. A nanometer is one billionth of a meter, or 10-9 m.Nanomaterials are usually defined as particles, whether they are crystals, rods, or spheres that are typically between 1 and 100 nm in size (usually defined by diameter) at least in one dimension. There are three types of nanostructures (i) zero dimensional: nanoparticles (ii) one dimensional: nanowires and nanotubes (iii) two dimensional: thin films. All the three nanostructures have different properties. Zero dimensional nanostructures or nanoparticles include single crystal, polycrystalline and amorphous particles with all possible morphologies like spheres, cubes and platelets. If the nanoparticles are single crystalline, they are often referred to as nanocrystals. When the characteristic dimension of the nanoparticles is sufficiently small and quantum effects are observed, they are described as quantum dots. One dimensional nanostructure includes whiskers, fibres, nanowires and nanorods. newlineMetal oxides represent an important class of materialswith wide range of applications in several areas such as materials science and catalysis, environmental decontamination andsolid-state chemistry. The wide variety of electronic and chemical properties of metal oxides makes them exciting materials for basic research and technological applications. Oxides span a broad range of electrical properties from wide band-gap insulators to metallic and superconducting. Metal oxides play an important role in a variety of applications such as microelectronic devices, sensors, fuel cells, coatings, catalysts, optoelectronic devices, etc, which attracts a significant interest in the synthesis of metal oxide nanomaterials now a days.
Pagination: 260p.
Appears in Departments:Department of Applied Physics

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01_dedication.pdfAttached File23.08 kBAdobe PDFView/Open
02_index (outline of thesis).pdf111.19 kBAdobe PDFView/Open
03_acknowledgements.pdf52.45 kBAdobe PDFView/Open
04_abstract.pdf67.8 kBAdobe PDFView/Open
05_chapter 1.pdf481.25 kBAdobe PDFView/Open
06_chapter 2.pdf654.35 kBAdobe PDFView/Open
07_chapter 3.pdf669.24 kBAdobe PDFView/Open
08_chapter 4.pdf684.41 kBAdobe PDFView/Open
09_chapter 5.pdf1.01 MBAdobe PDFView/Open
10_chapter 6.pdf822.05 kBAdobe PDFView/Open
11_chapter 7.pdf906.16 kBAdobe PDFView/Open
12_chapter 8.pdf828.15 kBAdobe PDFView/Open
13_chapter 9.pdf73.41 kBAdobe PDFView/Open

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