Synthesis of HgI2 Nanoparticles and Nanorods by Laser Ablation in Liquid for Photodetector Applications: Effect of Laser Fluence

Abd-Alrahman, Amnah S.; Ismail, Raid A.; Mohammed, Mudhafar A.

doi:10.1007/s10904-021-02124-9

Cited by 4 publications

(2 citation statements)

References 26 publications

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“…While assessing the complete picture we firmly believe that the laser ablated NPs/nanoentities have opened up a remarkable space in the NLO arena emerging out as significant smart materials possessing enormous scope in various photonic applications. This is because the third-order optical nonlinearity (both real and imaginary parts) depends For example, Abd-Alrahman et al [162] have achieved mercury iodide (HgI 2 ) NPs using pulsed ns laser ablation in ethanol. The prepared β-HgI 2 NPs/Si based heterojunction photodetectors and their I-V characteristics demonstrated rectification properties.…”

Section: Nonlinear Optical Response From Laser-synthesized Nmsmentioning

confidence: 99%

Review of ultrafast laser ablation for sensing and photonic applications

Byram

Moram

Banerjee

et al. 2023

J. Opt.

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Since its discovery, laser ablation in liquid (LAL) technique has engrossed significant attention from the research community and is gradually becoming a fascinating fabrication technique to synthesize nanostructures (NSs) of diverse morphologies on solid targets as well as nanoparticles (NPs) with distinct shapes/sizes in a single attempt. Moreover, this technique has plethora of advantages over the chemical routes such as simplicity, robustness, and purity of the produced NPs/NSs, as well as the circumvention of stabilizing reagents and/or chemical precursors during the synthesis. The present review focuses on our research group’s significant contributions and achievements over the past 10 years on laser-synthesized nanomaterials (NMs) and their applications in sensing [using the technique of surface enhanced Raman spectroscopy (SERS)] and nonlinear optics (NLO)/photonics. We highlight in the first section the governing mechanisms involved in the LAL technique with laser pulses of different duration such as nanosecond, picosecond, and femtosecond. Subsequent section discusses the effect of input laser pulse parameters (wavelength, fluence, pulse duration, reputation rate, and the number of pulses) as well as surrounding ambience (air and liquid) on the morphological changes of the substrate’s surfaces used in the production of nanoparticles (NPs) and surface nanostructures (NSs). The later section of this review describes the overview of LAL applications with particular emphasis on surface-enhanced Raman scattering based hazardous materials sensing and nonlinear optics/photonics.

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Section: Nonlinear Optical Response From Laser-synthesized Nmsmentioning

confidence: 99%

Review of ultrafast laser ablation for sensing and photonic applications

Byram

Moram

Banerjee

et al. 2023

J. Opt.

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“…[4][5][6] The ablation process has been utilized in micro and nanostructure synthesis, [7,8] cleaning of contaminants, [9] and laser shock processing. [10] Various studies based on the impact of ablation environment properties [11] and physical and chemical properties of the target, [12] in addition to laser parameters such as wavelength, [13] pulse width, [14] and energy per pulse, [15] have shed light on the effect of these parameters on the laser ablation process. Thus, it is imperative to study the impact of the ablation environment in the laser ablation process.…”

Section: Introductionmentioning

confidence: 99%

Laser Ablation of the Flexible Graphite: A New Way to Create a Graphene‐Based Flexible Substrate

Jalili

Ghanbari

Malekfar

et al. 2023

Physica Status Solidi (a)

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The morphological and structural changes of an ablated flexible graphite in air and acetone ablation environments were studied here. From field emission scanning electron microscopy (FESEM) images, vertically aligned graphene nanosheets were found on the surface of ablated target in acetone. Measured ablation depth values for the ablated target in water were generally higher than those for the ablated target in air. X‐ray diffraction (XRD) analysis revealed that the (002) peak position and full width at half maximum (FWHM) of this peak in the ablated flexible graphite in the air increased. The gap between the highest occupied molecular orbitals (HOMO) and the lowest unoccupied molecular orbitals (LUMO), i.e., the band gap of the ablated target, indicating that the energy band gap of the ablated target in two ablation media increased compared to the nonirradiated target. Raman analysis from different points of the surface of the ablated target in both ablation media demonstrated the presence of bulk defects on the ablated target in the air, instead the edge defects were found for the ablated target in acetone. From Raman spectra, there were no single‐layer graphene nanosheets pinned on the surface of the target in acetone.

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