Characterization of Carbon Plasma Evolution Using Laser Ablation TOF Mass Spectrometry

Zhang, Lei; Feng, Chao; Xiao, Qingbo; Hai, Ran; Ding, Hongbin

doi:10.1088/1009-0630/17/11/13

Cited by 5 publications

(2 citation statements)

References 23 publications

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“…This can be attributed to the fact that EBA‐8CB has a lower ablation threshold, leading to a higher atomization of the target, prompt ionization, and further dissociation of large clusters in the ablation plume. As a result, there is a higher intensity of lighter species that flow outside the irradiated substrate 38 (see Figure S20).…”

Section: Resultsmentioning

confidence: 99%

Laser processing of carbon black reinforced ethylene‐butyl acrylate copolymer

Aboudi

Bouyahia

et al. 2023

J of Applied Polymer Sci

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Interest in the phenomenon of laser ablation (LA) has gained significant attention in recent years due to its potential for machining, high‐precision drilling, and cutting materials, such as metals, semiconductors, and dielectrics. Here, LA of ethylene‐butyl acrylate (EBA) filled with different volume fractions (4%, 8%, and 20%) of CB particles is studied. Upon irradiation with the second harmonics (532 nm) of the nanosecond pulsed Nd:YAG laser, a structuration is evidenced at the sample surface in a restricted range of fluence and at high pulse number (PN) (500 pulses, 1 Hz). The laser‐ablated surface is analyzed by microtopography, scanning electron microscopy (SEM), and x‐ray photoelectron spectroscopy (XPS). Collectively, our data show a lowering in ablation threshold and depth for CB volume fractions larger than the conduction threshold (8%), indicating that visible radiation primarily induces photothermal effects. After redeposition of the ablation products at the surface, XPS indicates that high CB content in the EBA matrix induces high oxidation level of the composite surface. Furthermore, our results reveal that LA produces a significant proportion of amorphous carbon. Several parameters which affect heat accumulation and CB particle shielding are discussed. Such parameters include laser fluence and repetition rate, and CB content.

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Section: Resultsmentioning

confidence: 99%

Laser processing of carbon black reinforced ethylene‐butyl acrylate copolymer

Aboudi

Bouyahia

et al. 2023

J of Applied Polymer Sci

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“…The reason for the appearance of C 5+ and C 6+ ions at high fluence can be the large values of their ionization potentials [36]. Previously, singly charged low mass carbon cluster ions, C n 1+ (n = 3, 5, 7) and singly charged carbon atomic ions were produced by nanosecond pulsed laser ablation of graphite using 532 nm wavelength at the fluence of 1 J cm −2 [37]. In the same experiment, C 3 + and C 2 + ions were recorded using 1064 nm wavelength Nd:YAG laser.…”

Section: Charge State Distributionmentioning

confidence: 99%

Charge state and Energy distribution of carbon ions and protons emitted from laser-produced graphite plasma

Ilyas¹,

Dogar²,

Qayyum³

et al. 2022

Phys. Scr.

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The energy and charge state distribution of atomic carbon ions, carbon cluster ions, and protons emitted during Q-switched Nd:YAG laser (1064 nm/6 ns) laser irradiation of high purity graphite target was investigated by employing a time of flight ion energy analyzer (TOF-IEA). Laser fluence on the target surface was varied from 2 to 26 J/cm2. At the lower fluence range (2-6 J/cm2), multiply charged low mass odd numbered cluster ions C_n^(q+) with n= 3, 5, 7 and charge state up to 5+ and carbon atomic ions up to the charge state of 3+ were detected. For the fluence greater than 6.4 J/cm2, carbon atomic ions up to a charge state of 6+ and protons were observed. The energy distribution of various carbon ions and protons was measured at the fluence of 5.1 and 25.5 J/cm2. At 5.1 J/cm2, the measured energy range for carbon cluster ions C_3^(q+) and carbon C_1^(q+)was 0.2-3.1 keV and 0.2-1.2 keV, respectively. At 25.5 J/cm2, the energy of carbon ions C_1^(q+) (q=2-4) was in the range of 0.4-3.8 keV. Surprisingly, energetic protons with maximum energy of 1.5 keV and considerable intensity were detected at 25.5 J/cm2. The bi-component structure of ion energy distribution suggested a complex ion accelerating mechanism, which is discussed within the framework of the electrostatic model.

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Diagnostic study of laser-produced tungsten plasma using optical emission spectroscopy and time-of-flight mass spectroscopy

Zhang

Liu

et al. 2017

Spectrochimica Acta Part B: Atomic Spectroscopy

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Characterization of Carbon Plasma Evolution Using Laser Ablation TOF Mass Spectrometry

Cited by 5 publications

References 23 publications

Laser processing of carbon black reinforced ethylene‐butyl acrylate copolymer

Laser processing of carbon black reinforced ethylene‐butyl acrylate copolymer

Charge state and Energy distribution of carbon ions and protons emitted from laser-produced graphite plasma

Diagnostic study of laser-produced tungsten plasma using optical emission spectroscopy and time-of-flight mass spectroscopy

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