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theses

Nanorods are useful for sensing and energy applications owing to the tunability of their plasmonic properties, which can be achieved through variation of their aspect ratio. In order to integrate them into sensing and energy devices either top down or bottom approaches can be employed. Bottom up protocols are advantageous compared to top down approaches because of higher resolution and potentially economical up scaling for large scale production. However, one of the difficulties with bottom up fabricated platforms is the reproducibility of the surfaces features because of agglomeration and random orientation of the nanorods on the substrate. Here we proposed a novel strategy for coating the nanoparticles in a well-dispersed manner onto solid state substrates with high surface coverage and uniform distribution, which can potentially be implemented to achieve nanorod orientation along a predetermined direction. In the research work presented, we functionalized glass substrates with molecular tethers, which led to the immobilization of nanorods onto the substrate and were characterized by scanning electron microscopy and atomic force microscopy. We also reduced graphene oxide and fabricated thin films, which were characterized using Raman spectroscopy. These sheets could be used as a substrate for nanorods as well as, as electrodes for nanorod orientation. This work can potentially be used for developing large scale reproducible substrates which can find applications in sensing and energy fields.

ETD_7601

M.S.

Includes bibliographical references

by Sakshi Sardar

doi:10.7282/T37D2XF5

ETD graduate

The author owns the copyright to this work.