<scp>2D</scp>Materials for Nonlinear Optical Limiting

Shang, Wen; Wang, Bolong; Wang, Qiang

doi:10.1002/9783527838288.ch8

Cited by 1 publication

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“…2 Hence, our attention is directed toward crafting optical limiters that incorporate two-dimensional (2D) nanomaterials to enhance the robustness of the NL optical response. 3 Following the discovery of graphene, 4 research has pivoted toward the exploration of 2D materials. Despite having intriguing characteristics, it has been deemed detrimental in terms of an optoelectronic perspective due to a zero band gap.…”

Section: ■ Introductionmentioning

confidence: 99%

Optical Limiting Performance of MoS₂ Nanosheets Exfoliated via Liquid-Phase Sonication: Implications for Laser Shielding

Rafi,

Little Flower

et al. 2024

ACS Appl. Nano Mater.

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The utilization of two-dimensional (2D) materials in optoelectronic devices has witnessed a surge. Production of 2D ultrathin molybdenum disulfide (MoS 2 ) nanosheets without the use of toxic precursors and without altering the phase of the material is still a task. We developed a cost-effective liquid-phase exfoliation method that is free of additives, utilizing ultrasound to produce a significant amount of nearly single-layered MoS 2 nanosheets by employing isopropyl alcohol and deionized water as a cosolvent. This work addresses the deficiencies in the current state-of-the-art studies by exploring the mechanism governing ultrasonic cavitation, resulting in MoS 2 nanosheets. Various sonication durations were altered to investigate the relationship between the duration of sonication and the dimensionality of the resulting nanosheets. The findings revealed that prolonged sonication durations yielded bilayered and trilayered nanosheets. The reduction in layer thickness was confirmed by Raman modes as the sonication time increased. Size-dependent optical studies indicated that the optical properties have enhanced as the sonication time increased. An open-aperture Z-scan investigation was conducted to explore the size-dependent nonlinear optical features of MoS 2 nanosheets, employing a 532 nm neodymium-doped yttrium aluminum garnet pulsed laser in a nanosecond pulsed regime. The optical limiting performance of the nanosheets sonicated at various time intervals was accessed and it was observed that as the nanosheets' thickness decreases, the optical limiting behavior improves. Due to two-photon absorption, MoS 2 nanosheets display optical limiting behaviors through reverse saturable absorption. Optical limiting thresholds as low as 2.98 × 10 12 W/m 2 are attained. This significant enhancement suggests that these ultrathin MoS 2 nanosheets are suitable for applications in laser shielding.

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Section: ■ Introductionmentioning

confidence: 99%

Optical Limiting Performance of MoS₂ Nanosheets Exfoliated via Liquid-Phase Sonication: Implications for Laser Shielding

Rafi,

Little Flower

et al. 2024

ACS Appl. Nano Mater.

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2DMaterials for Nonlinear Optical Limiting

Cited by 1 publication

References 143 publications

Optical Limiting Performance of MoS₂ Nanosheets Exfoliated via Liquid-Phase Sonication: Implications for Laser Shielding

Optical Limiting Performance of MoS₂ Nanosheets Exfoliated via Liquid-Phase Sonication: Implications for Laser Shielding

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2DMaterials for Nonlinear Optical Limiting

Cited by 1 publication

References 143 publications

Optical Limiting Performance of MoS2 Nanosheets Exfoliated via Liquid-Phase Sonication: Implications for Laser Shielding

Optical Limiting Performance of MoS2 Nanosheets Exfoliated via Liquid-Phase Sonication: Implications for Laser Shielding

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Optical Limiting Performance of MoS₂ Nanosheets Exfoliated via Liquid-Phase Sonication: Implications for Laser Shielding

Optical Limiting Performance of MoS₂ Nanosheets Exfoliated via Liquid-Phase Sonication: Implications for Laser Shielding