Penta(zinc porphyrin)[60]fullerenes: Strong reverse saturable absorption for optical limiting applications

Kulyk, B.; Waszkowska, K.; Busseau, Antoine; Villegas, Carmen; Hudhomme, Piétrick; Dabos‐Seignon, Sylvie; Zawadzka, Anna; Legoupy, Stéphanie; Sahraoui, B.

doi:10.1016/j.apsusc.2020.147468

Cited by 75 publications

(33 citation statements)

References 64 publications

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“…However, when the laser energy is increased further, electrons in the valence band can absorb two photons and jump to the conduction band, so two-photon absorption (TPA) occurs, which means that the sample shows RSA [ 38 ]. The nonlinear absorption in the Ti 3 C 2 nanosheet was different from that of organic materials, in which the NLO performance originates from the effective combination of RSA and the photo-induced electron/energy transfer mechanism from donor to acceptor [ 39 ].…”

Section: Resultsmentioning

confidence: 99%

Broadband Visible Nonlinear Absorption and Ultrafast Dynamics of the Ti3C2 Nanosheet

Shao

Chen

et al. 2020

Nanomaterials

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The Ti3C2 nanosheet, as a new two-dimensional (2D) group, has been found to have attractive characteristics as material for electromagnetic shielding and energy storage. In this study, the nonlinear broadband absorption and ultrafast dynamics of the Ti3C2 nanosheet were investigated using nanosecond open-aperture Z-scan and transient absorption techniques. The mechanism of two-photon absorption (TPA) was revealed in the visible region (475–700 nm). At lower incident energies, nonlinear absorption could not happen. When the laser energy increased to 0.64 GW/cm2, electrons in the valence band could absorb two photons and jump to the conduction band, with TPA occurring, which meant that the sample exhibited reverse saturable absorption (RSA). In addition, when transient absorption was used to investigate the ultrafast carrier dynamics of the sample, it demonstrated that the relaxation contains a fast decay component and a slow one, which are obtained from electron–phonon and phonon–phonon interactions, respectively. Moreover, with the increasing pump fluence, the fast decay lifetime τ1 increased from 3.9 to 4.5 ps, and the slow one τ2 increased from 11.1 to 13.2 ps. These results show that the Ti3C2 nanosheet has potential applications in broadband optical limiters.

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Section: Resultsmentioning

confidence: 99%

Broadband Visible Nonlinear Absorption and Ultrafast Dynamics of the Ti3C2 Nanosheet

Shao

Chen

et al. 2020

Nanomaterials

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“…Values of

are

at 515 nm and

at 1030 nm. The figure of merit (

) of BQDs for the third-order optical nonlinearity is

at 515 nm and

at 1030 nm which are comparable to graphene in Figure 3 d, biological tellurium PmPv (Bio-Te-PmPv) [ 30 ] and black phosphorus (BP) [ 17 ] listed in Table 1 , and some other materials [ 31 , 32 , 33 , 34 , 35 , 36 ]. The excellent nonlinear optical absorption performance of BQDs may origin from its strong light-matter interactions, which can be clearly seen from the linear absorption spectrum on Figure 2 a.…”

Section: Resultsmentioning

confidence: 86%

Scalable Production of Boron Quantum Dots for Broadband Ultrafast Nonlinear Optical Performance

et al. 2021

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A simple and effective approach based on the liquid phase exfoliation (LPE) method has been put forward for synthesizing boron quantum dots (BQDs). By adjusting the interactions between bulk boron and various solvents, the average diameter of produced BQDs is about 7 nm. The nonlinear absorption (NLA) responses of as-prepared BQDs have been systematically studied at 515 nm and 1030 nm. Experimental results prove that BQDs possess broadband saturable absorption (SA) and good third-order nonlinear optical susceptibility, which are comparable to graphene. The fast relaxation time and slow relaxation time of BQDs at 515 nm and 1030 nm are about 0.394–5.34 ps and 4.45–115 ps, respectively. The significant ultrafast nonlinear optical properties can be used in optical devices. Here, we successfully demonstrate all-optical diode application based on BQDs/ReS2 tandem structure. The findings are essential for understanding the nonlinear optical properties in BQDs and open a new pathway for their applications in optical devices.

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“…Through the construction of a D–π-A conjugated system, the NLO performance of C 60 -based materials has been greatly improved. 23,46 However, knowledge about the effects of the composition, internal structure and molecular packing of the C 60 multistage crystals on the NLO performance is still limited. 47,48 As discussed in the previous sections, the HPH and MFs obtained in this work have interesting morphologies and a hcp internal structure which is different from the intrinsic fcc lattice of pristine C 60 .…”

Section: Resultsmentioning

confidence: 99%

“…21 A typical strategy to overcome this drawback is to covalently graft electron-donating moieties onto the C 60 to construct a donor–π-acceptor (D–π-A) system. 22–27 By this means, the absorption of C 60 could be pulled to the desired spectral regions with longer wavelengths and the NLO response could be increased. Unfortunately, this strategy inevitably requires a tedious and time-consuming organic synthesis.…”

Section: Introductionmentioning

confidence: 99%

Fullerene superlattices containing charge transfer complexes for an improved nonlinear optical performance

Hao

2022

Nanoscale

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Penta(zinc porphyrin)[60]fullerenes: Strong reverse saturable absorption for optical limiting applications

Cited by 75 publications

References 64 publications

Broadband Visible Nonlinear Absorption and Ultrafast Dynamics of the Ti3C2 Nanosheet

Broadband Visible Nonlinear Absorption and Ultrafast Dynamics of the Ti3C2 Nanosheet

Scalable Production of Boron Quantum Dots for Broadband Ultrafast Nonlinear Optical Performance

Fullerene superlattices containing charge transfer complexes for an improved nonlinear optical performance

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