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Efficient Optical Limiting in Carbon-Nanohorn Suspensions

Author

Listed:
  • Elisa Sani

    (Istituto Nazionale di Ottica (CNR-INO), Largo Enrico Fermi 6, I-50125 Firenze, Italy)

  • Nicolò Papi

    (Istituto Nazionale di Ottica (CNR-INO), Largo Enrico Fermi 6, I-50125 Firenze, Italy)

  • Luca Mercatelli

    (Istituto Nazionale di Ottica (CNR-INO), Largo Enrico Fermi 6, I-50125 Firenze, Italy)

  • Aldo Dell’Oro

    (INAF-Osservatorio Astrofisico di Arcetri, Largo E. Fermi, 5, I-50125 Firenze, Italy)

Abstract

Nonlinear optical properties of aqueous dispersions of single-wall carbon nanohorns (SWCNH) are investigated by a simple and original technique, relating nonlinear transmittance measurements with semi-empirical model fitting and allowing to identify the dominant nonlinear mechanism. The nanofluids shown a particularly strong optical limiting under irradiation by nanosecond laser pulses at 355, 532 and 1064 nm, much stronger than that previously reported in SWCNHs with smaller aggregate size. The effect is more relevant at 355 nm, where a nearly ideal optical limiting behavior with output energy practically independent on the input one is obtained, and it is attributed to the massive production of bubbles under the effect of light irradiation. This result opens interesting perspectives for the use of SWNCH-based suspensions for smart materials applications and green energy.

Suggested Citation

  • Elisa Sani & Nicolò Papi & Luca Mercatelli & Aldo Dell’Oro, 2021. "Efficient Optical Limiting in Carbon-Nanohorn Suspensions," Energies, MDPI, vol. 14(8), pages 1-9, April.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:8:p:2074-:d:532556
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    References listed on IDEAS

    as
    1. Sani, Elisa & Papi, Nicolò & Mercatelli, Luca & Żyła, Gaweł, 2018. "Graphite/diamond ethylene glycol-nanofluids for solar energy applications," Renewable Energy, Elsevier, vol. 126(C), pages 692-698.
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