Efficient Optical Limiting in Carbon-Nanohorn Suspensions
Year: 2021
Authors: Sani E., Papi N., Mercatelli L., Dell’Oro A.
Autors Affiliation: Ist Nazl Ott CNR INO, Largo Enrico Fermi 6, I-50125 Florence, Italy; INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, 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 nonlin-ear 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
Journal/Review: ENERGIES
Volume: 14 (8) Pages from: 2074-1 to: 2074-9
More Information: This research has been partially funded by the Italian bank foundation “Fondazione Cassa di Risparmio di Firenze” in the framework of the I-SOLAR project (Pratica n. 2020.1728).KeyWords: nanofluids, optical limiting, bubble generation, carbon nanohorns, vapor generation, solar energyDOI: 10.3390/en14082074ImpactFactor: 3.252Citations: 2data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-24References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here