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Nanomaterials for optical data storage

Abstract

The growing amount of data that is generated every year creates an urgent need for new and improved data storage methods. Nanomaterials, which have unique mechanical, electronic and optical properties owing to the strong confinement of electrons, photons and phonons at the nanoscale, are enabling the development of disruptive methods for optical data storage with ultra-high capacity, ultra-long lifetime and ultra-low energy consumption. In this Review, we survey recent advancements in nanomaterials technology towards the next generation of optical data storage systems, focusing on metallic nanoparticles, graphene and graphene oxide, semiconductor quantum dots and rare-earth-doped nanocrystals. We conclude by discussing the use of nanomaterials in data storage systems that do not rely on optical mechanisms and by surveying the future prospects for the field.

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Figure 1: Capacity of nanomaterial-based data storage technologies.
Figure 2: Technological roadmap of optical data storage devices.
Figure 3: Metallic nanoparticles.
Figure 4: Graphene and graphene oxide.
Figure 5: Semiconductor quantum dots.
Figure 6: Rare-earth-doped nanocrystals.

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Acknowledgements

M.G. thanks the Australian Research Council (ARC) for support through a Laureate Fellowship project (FL100100099).

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Gu, M., Zhang, Q. & Lamon, S. Nanomaterials for optical data storage. Nat Rev Mater 1, 16070 (2016). https://doi.org/10.1038/natrevmats.2016.70

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