Efficient Optical Limiting in Carbon-Nanohorn Suspensions

Anno: 2021

Autori: Sani E., Papi N., Mercatelli L., Dell’Oro A.

Affiliazione autori: 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

Giornale/Rivista: ENERGIES

Volume: 14 (8)      Da Pagina: 2074-1  A: 2074-9

Maggiori informazioni: 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).
Parole chiavi: nanofluids, optical limiting, bubble generation, carbon nanohorns, vapor generation, solar energy
DOI: 10.3390/en14082074

Citazioni: 2
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-12-08
Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
Link per visualizzare la scheda su IsiWeb: Clicca qui
Link per visualizzare la citazioni su IsiWeb: Clicca qui