Effect of liquid medium on size and shape of nanoparticles prepared by pulsed laser ablation of tin

Bajaj, Geetika; Soni, R. K.

doi:10.1007/s00339-009-5248-5

Cited by 44 publications

(21 citation statements)

References 33 publications

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“…PEG and PVA coat the Pt particles through weak electrostatic interactions while exposing the more hydrophilic groups outward to the aqueous phase. 51 As shown, molecular weight of the PEG stabilizing agent (1, 6 and 12 kDa) did not affect the size of nanorods while their density decreased at increasing molecular weight. The formation of nanorods plausibly arises from coalescence of the ablated material, with the surfactants acting not simply as templates but also as shape-inducing reagents, in a qualitatively similar way as found in the case of PLAL of Mg in a previous study.…”

Section: Ablation Process and Nanoparticle Growth Mechanismsmentioning

confidence: 76%

Platinum Nanoparticles as Photoactive Substrates for Mass Spectrometry and Spectroscopy Sensors

et al. 2014

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Aqueous suspensions of platinum colloidal nanoparticles of varying size and polydispersity have been produced by ablation of a platinum target with a nanosecond Q-switched Nd:YAG laser. Several laser wavelengths (1064, 532 and 266 nm) and stabilizing agents (citrate and polymers PEG, PVA and PVP) were employed. Laser ablation with the infrared and visible wavelengths leads to spherical amorphous nanoparticles with a bimodal distribution of diameters, featuring a global maximum in the range 5-10 nm and a shoulder extending to 25 nm. Such bimodal distributions plausibly arise from thermal and explosive vaporization mechanisms occurring in different time scales, as proposed in earlier studies.Ultraviolet ablation of Pt at 266 nm, reported here for the first time, produces crystalline nanoparticles of small size (1-4 nm diameter), with a weak onset of larger particles (6-8 nm). The ablation at 266 nm also produced an appreciable yield of large rod-like particles of size ∼ 10 x 70 nm 2 , especially in the presence of PEG and PVA. The Pt nanoparticles served to fabricate films capable of assisting the laser desorption ionization (LDI) of a model peptide. The best analytical performance for LDI mass spectrometric detection was obtained with Pt nanoparticles surface functionalized with citrate and PVA.

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Section: Ablation Process and Nanoparticle Growth Mechanismsmentioning

confidence: 76%

Platinum Nanoparticles as Photoactive Substrates for Mass Spectrometry and Spectroscopy Sensors

et al. 2014

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“…Increased N, PRF and F resulted in higher energy density and in the fabrication of nanoparticles with smaller sizes. With increased laser fluence, the temperature and pressure within the hot plasma increases which may contribute to further particle melting, fracturing, and smaller particle sizes [20]. The liquid-confined plasma pulse width is also 2-3 times longer than the applied laser pulse duration [21], which can amplify the plasma plume effect within the LP-PLA process compared to less dense atmospheres.…”

Section: Resultsmentioning

confidence: 99%

Liquid Phase – Pulsed Laser Ablation: A route to fabricate different carbon nanostructures

Al-Hamaoy

Chikarakara

Jawad

et al. 2014

Applied Surface Science

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Carbon nanostructures in various forms and sizes, and with different speciation properties have been prepared from graphite by Liquid Phase -Pulsed Laser Ablation (LP-PLA) using a high frequency Nd:YAG laser. High energy densities and pulse repetition frequencies of up to 10 kHz were used in this ablation process to produce carbon nanomaterials with unique chemical structures. Dynamic Light Scattering (DLS), micro-Raman and High-Resolution Transmission Electron Microscopy (HRTEM) were used to confirm the size distribution, morphology, chemical bonding, and crystallinity of these nanostructures. This article demonstrates how the fabrication process affects measured characteristics of the produced carbon nanomaterials. The obtained particle properties have potential use for various applications including biochemical speciation applications.

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“…Variation of laser ablation parameters [9,12] and chemical properties [13][14][15][16] of surrounding liquid media has been the primary focus of these studies. It has been demonstrated that the size of gold NPs produced in water increases with increasing laser pulse energy [17].…”

Section: Introductionmentioning

confidence: 99%

Size Control of Gold Nanoparticles Synthesized by Laser Ablation in Liquid Media

Riabinina

Zhang

Chaker

et al. 2012

ISRN Nanotechnology

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We investigate the influence of salt, acidic, and basic solutions (citrate, NaOH, and HCl) on the size of gold nanoparticles (AuNPs) synthesized by laser ablation in aqueous media. We found that NP size increases from 3 nm to 13 nm when Zeta potential varies from −100 mV to −10 mV whatever the concentration and the nature of chemical solution are namely, citrate, NaOH, and HCl. These results demonstrated that the final size of gold NPs produced by laser ablation in liquid media is mainly governed by the charge-dependent growth mechanism.

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Effect of liquid medium on size and shape of nanoparticles prepared by pulsed laser ablation of tin

Cited by 44 publications

References 33 publications

Platinum Nanoparticles as Photoactive Substrates for Mass Spectrometry and Spectroscopy Sensors

Platinum Nanoparticles as Photoactive Substrates for Mass Spectrometry and Spectroscopy Sensors

Liquid Phase – Pulsed Laser Ablation: A route to fabricate different carbon nanostructures

Size Control of Gold Nanoparticles Synthesized by Laser Ablation in Liquid Media

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