Unveiling the enhanced optical limiting of polyaniline – Fullerene composite investigated by z-scan

Mathew, Roshan Joseph; Chandran, Arun R.; Saji, K.J.; Sajeev, U.S.

doi:10.1016/j.optmat.2024.115428

Cited by 3 publications

(2 citation statements)

References 60 publications

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“…Where A is the edge width parameter, ν is the frequency of incident photon, n is the power coefficient determines the possible electronics transitions and E g is the bandgap energy, α is the absorption coefficient [59,60].…”

Section: Uv-visible Absorption Spectroscopymentioning

confidence: 99%

Enhanced nonlinear optical properties and optical limiting performance of graphene modified polyaniline composite under pulsed laser regime

Mathew,

Chandran,

K S

et al. 2024

Phys. Scr.

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Polyaniline (PANI) and its graphene-doped composite (PANI-GNP) were subjected to open-aperture (OA) z-scan studies to investigate their nonlinear optical (NLO) properties and optical limiting (OL) behavior. The z-scan experiments were carried out using a nanosecond pulsed Nd:YAG laser at a wavelength of 532 nm. The z-scan studies revealed that PANI and PANI-GNP composites exhibited a reverse saturable absorption (RSA), and graphene doping modified the NLO behaviour and improved the OL property. The nonlinear absorption coefficient (β), OL threshold, and imaginary part of nonlinear susceptibility ( χ i ( 3 ) ) of PANI and PANI-GNP were calculated for three different laser input pulse energies and found to be in the order of 10−9 cm W−1, 106 W cm−2, and 10−10 esu, respectively. These results qualify the PANI-GNP composite as having potential applications in OL and optoelectronic devices. The successful incorporation of graphene into PANI in PANI-GNP composite was confirmed by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FTIR). Linear optical properties were analysed using UV–visible absorption spectroscopy. To the best of our knowledge, the present work is the first attempt to explore the intensity-dependent NLO properties, OL behaviour and the calculation of their related NLO parameters of PANI-GNP composites.

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Section: Uv-visible Absorption Spectroscopymentioning

confidence: 99%

Enhanced nonlinear optical properties and optical limiting performance of graphene modified polyaniline composite under pulsed laser regime

Mathew,

Chandran,

K S

et al. 2024

Phys. Scr.

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“…Since last few years, many reports have been published regarding the synthesis and designing of NLO materials [5][6][7][8][9][10][11][12]. NLO is a field of optics that defines the behavior of light in a medium, in which the polarization density behaves non-linearly toward electric field of coming light [13].…”

Section: Introductionmentioning

confidence: 99%

Change in nonlinear optical response of C₂₄ nanocage upon doping with lithium based superalkalis

Kosar,

Safdar,

Imran

et al. 2024

Phys. Scr.

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Density functional theory (DFT) calculations are used to analyze the change in nonlinear optical (NLO) response, electronic and geometric properties of the Li based superalkalis doped C24 nanocage. It was observed that the adsorption of Li4N, Li3O and Li2F superalkalis on C24 nanocage results in thermodynamically stable isomers (A-F). The energy gap between the highest occupied and the lowest unoccupied molecular orbitals (GH-L) is reduced after superalkalis doping on carbon (C24) nanocage. Density of states spectra depict the strong contribution of superalkalis in HOMOs of the considered complexes. Natural bond orbital (NBO) charge analysis showed that the charge is being transferred from superalkali toward C24 nanocage. The values of polarizability (αo) and hyperpolarizability (βo) showed that doping of superalkalis on C24 has a significant effect on its NLO response, resulting in a considerable increase in values of αo and βo. Li4N@C24 isomer E showed the highest βo value of 6470.74 au. Time dependent density functional theory (TD-DFT) calculations are implemented to analyze the absorption spectra. This research provides unique and highly efficient superalkalis doped C24 isomers for their applications in future electronic devices.

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Tunable nonlinear optical properties in polyaniline-multiwalled carbon nanotube (PANI-MWCNT) system probed under pulsed Nd:YAG laser

Mathew,

Chandran,

K S

et al. 2025

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Unveiling the enhanced optical limiting of polyaniline – Fullerene composite investigated by z-scan

Cited by 3 publications

References 60 publications

Enhanced nonlinear optical properties and optical limiting performance of graphene modified polyaniline composite under pulsed laser regime

Enhanced nonlinear optical properties and optical limiting performance of graphene modified polyaniline composite under pulsed laser regime

Change in nonlinear optical response of C₂₄ nanocage upon doping with lithium based superalkalis

Tunable nonlinear optical properties in polyaniline-multiwalled carbon nanotube (PANI-MWCNT) system probed under pulsed Nd:YAG laser

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Unveiling the enhanced optical limiting of polyaniline – Fullerene composite investigated by z-scan

Cited by 3 publications

References 60 publications

Enhanced nonlinear optical properties and optical limiting performance of graphene modified polyaniline composite under pulsed laser regime

Enhanced nonlinear optical properties and optical limiting performance of graphene modified polyaniline composite under pulsed laser regime

Change in nonlinear optical response of C24 nanocage upon doping with lithium based superalkalis

Tunable nonlinear optical properties in polyaniline-multiwalled carbon nanotube (PANI-MWCNT) system probed under pulsed Nd:YAG laser

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Product

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Change in nonlinear optical response of C₂₄ nanocage upon doping with lithium based superalkalis