Upconversion nanoparticles induce the reduction of graphene oxide for nanoscale optical writing

Simone Lamon; Yiming Wu; Qiming Zhang; Xiaogang Liu; Min Gu

doi:10.1117/12.2593082

1 August 2021 Upconversion nanoparticles induce the reduction of graphene oxide for nanoscale optical writing

Simone Lamon, Yiming Wu, Qiming Zhang, Xiaogang Liu, Min Gu

Proceedings Volume 11828, ODS 2021: Industrial Optical Devices and Systems; 118280A (2021) https://doi.org/10.1117/12.2593082
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

Nanoscale optical writing enables high-density optical data storage. However, current techniques usually require high laser beam intensity with high energy consumption and short device lifetime. Upconversion nanoparticles (UCNPs) have shown great potential for high-density optical data storage due to their exceptional luminescence emissions. In addition, UCNPs have enabled low-power STED microscopy. We show that UCNPs can induce the reduction of graphene oxide (GO) at the nanoscale. Dual-beam super-resolution irradiation was used to write features in UCNP-conjugated GO with lateral feature size at the nanoscale and inhibition intensity of <15 MW/cm^2. This approach might offers a convenient and energy-efficient solution for the storage demands in the Data Age.

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Citation Download Citation

Simone Lamon, Yiming Wu, Qiming Zhang, Xiaogang Liu, and Min Gu "Upconversion nanoparticles induce the reduction of graphene oxide for nanoscale optical writing", Proc. SPIE 11828, ODS 2021: Industrial Optical Devices and Systems, 118280A (1 August 2021); https://doi.org/10.1117/12.2593082

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KEYWORDS

Upconversion

Graphene

Nanoparticles

Oxides

Nanocomposites

Optical storage

Data storage

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