Proceedings of The International Conference on Advanced Research in Applied Science and Engineering
Investigation of Structural, Topographic and Optical Properties of Triangular Nanostructured Tin Dioxide Films
Paramita Sarkar, S. K. Tripathy and K. L. Baishnab
In this paper, we have investigated the structural, topographic and optical properties of tin (IV) dioxide (SnO2) films grown onto glass substrates using controlled aqueous growth method. The characterization of SnO2 films are carried out with the help of X-ray Diffractometer (XRD), DRS UV-Vis-NIR spectroscopy, Atomic Force Microscope (AFM). The XRD pattern reveals that SnO2 films have been crystalline with cassiterite tetragonal structure with an average grain size of 27.7 nm. Further, UV-Vis-NIR spectroscopy data displays the increasing nature of transmittance in the visible as well as in near-infrared regions. The estimated optical bandgap is found to be 3.89 eV and direct in nature. We have also obtained the topographic image of SnO2 films using atomic force microscope (AFM). Topography images confirm the formation of crystals and the images indicates that the layered triangular nanostructures with large surface area has been formed on glass substrates. All the above-obtained parameters are compared with available data and found in good agreement.
Keywords: Metal Oxides; Experimental Techniques; Nanostructures; TCOs.