• S Agarwal

      Articles written in Bulletin of Materials Science

    • Optical properties of d.c. magneto sputtered tantalum and titanium nanostructure thin film metal hydrides

      M Singh S Srivastava S Agarwal S Kumar Y K Vijay

      More Details Abstract Fulltext PDF

      Nanostructured thin films of tantalum and titanium were deposited on glass substrate using d.c. magnetron sputtering technique under the argon gas environment at a pressure of 0.1 mbar. Optical transmission and absorption studies were carried out for these samples with pressure of hydrogen. Large changes in both transmission and absorption on loading these films with hydrogen are accompanied by significant phase changes and electronic transformation. Optical photograph shows the colour variation after hydrogenation in case of tantalum film which may be used as decorative mirrors and hydrogen sensors. The hydrogen storage capability of thin films was confirmed by variation in optical properties.

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