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Abstract
Nano silver oxide thin films have shown plasmon assisted fluorescence phenomenon which can be used for optical data storage. In the present report, we present the results of fluorescence of nano silver thin films prepared by DC Magnetron sputtering technique at low temperature (150K). The nano silver thin films are oxidised and are irradiated with blue light (γ = 440 nm), a fluorescence emission is observed in the red region (γ = 660 nm). These films are analysed by XRD and AFM. Emission spectrum was recorded using fluorescence spectrometer. Films of thicknesses 50A to 600 A are prepared and compared the fluorescence properties. It is observed that the fluorescence emission from the silver clusters depends on growth parameters in sputtering (like substrate temperature or deposition rate) and on the oxidation temperature.
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A Subrahmanyam
A Subrahmanyam BSc from Andhra University (1973), MSc from Andhra University (1975) and PhD from IIT Kharagpur (1980). BOYSCAST Fellow (!989), Alexander von Humboldt Fellow (1991). Joined the Department of Physics, IIT Madras in 1982. Working on Metal Oxide thin films for the past twenty years.
P Suman Kumar
P Suman Kumar BSc from S V University (2001), MSc from S V University (2003). Prof P Jaya Rami Reddy Gold medal for standing University First in MSc, Prof Y Prabhakar Reddy Gold medal in MSc, Prof Bhimasenachari Gold medal in MSc, S A Ramamurthy award in BSc for best performance in Physics. Presently, working as Lecturer at Jagan's Degree College, Nellore, AP.