Localized Nanodiamond Crystallization and Field Emission Performance Improvement of Amorphous Carbon upon Laser Irradiation in Liquid

Liu, Pu; Wang, Chengxin; Chen, Jian; Xu, Ning; Yang, Guowei; Ke, N.; Xu, Jianbin

doi:10.1021/jp901359b

Cited by 16 publications

(7 citation statements)

References 44 publications

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“…Actually, nanodiamonds are nucleated in the crater of amorphous carbon targets, because of the effect of the high pressure generated during 532 nm ns laser ablation in H 2 O at high fluence. 143 This finding supports the hypothesis that, in LASiS, nuclei of NMs can be extracted from the target instead of being formed by a nucleation process during the expansion and cooling of the atomized species in the plasma plume.…”

Section: Bulk Targetsupporting

confidence: 82%

What controls the composition and the structure of nanomaterials generated by laser ablation in liquid solution?

Amendola

Meneghetti

2013

Phys. Chem. Chem. Phys.

648

546

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Laser ablation synthesis in liquid solution (LASiS) is a "green" technique that gives access to the preparation of a library of nanomaterials. Bare noble metal spherical particles, multiphase core-shell oxides, metal-semiconductor heterostructures, layered organometallic compounds and other complex nanostructures can be obtained with the same experimental set up, just by varying a few synthetic parameters. How to govern such versatility is one of the current challenges of LASiS and requires a thorough understanding of the physical and chemical processes involved in the synthesis. In this perspective, the fundamental mechanisms of laser ablation in liquids are summarized, organized according to their temporal sequence and correlated with relevant examples taken from the library of nanomaterials disclosed by LASiS, in order to show how synthesis parameters influence the composition and the structure of products. The resulting framework suggests that, to date, much attention has been devoted to the physical aspects of laser-matter interaction and to the characterization of the final products of the synthesis. Conversely, the clarification of chemical processes active during LASiS deserves more research efforts and requires the synergy among multiple investigation techniques.

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Section: Bulk Targetsupporting

confidence: 82%

What controls the composition and the structure of nanomaterials generated by laser ablation in liquid solution?

Amendola

Meneghetti

2013

Phys. Chem. Chem. Phys.

648

546

View full text Add to dashboard Cite

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“…As shown by Yang et al in their work published in 1998 and following, ,,,− P and T values of 10−15 GPa and 4000−5000 K, respectively, promote the phase transition of graphitic carbon into nanodiamonds (NDs). The size of the NDs' nuclei formed in a liquid environment has been related to thermodynamic parameters as well as the laser pulse duration. ,,,− …”

Section: Introductionmentioning

confidence: 94%

Carbon-Based Nanostructures Obtained in Water by Ultrashort Laser Pulses

Santagata¹,

Bonis

Giacomo

et al. 2011

J. Phys. Chem. C

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“…86 (ii) PLDIL, as a typical top-down fabrication of nanostructures, can be expected to be generally used to fabricate a variety of functional nanopatterns for microelectronics, optoelectronics, and biology and medicine. 87,88 Hopefully, the developed LAL techniques will open a route toward monodispersive nanoparticles synthesis and functional nanostructure fabrication in the future.…”

Section: Future Potential Of Lal In Synthesis Of Nanostructuresmentioning

confidence: 99%

From nanocrystal synthesis to functional nanostructure fabrication: laser ablation in liquid

Liu¹,

Cui²,

Wang³

et al. 2010

Phys. Chem. Chem. Phys.

129

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Although nanomaterials investigations have been carried over the recent decades, researchers still face a fundamental challenge: how to control the phase, size and shape of nanocrystals in the synthesis of nanomaterials, i.e., how to achieve the transformation from nanocrytsal synthesis to functional nanostructure fabrication. For this issue, we, in this review, introduce recent developments in laser ablation in liquid (LAL) for the synthesis and fabrication of novel nanostructures with metastable phases and shapes. Laser ablation of solid targets in liquid has actually opened a door toward to synthesize nanocrystals and fabricate nanostructures due to these advantages as follows: (i) LAL is a chemically "simple and clean" synthesis due to the process with reduced byproduct formation, simpler starting materials, no need for catalyst, etc. (ii) Under ambient conditions, not extreme temperature and pressure, a variety of metastable phases that may not usually be attainable, can be generated by mild preparation methods. (iii) New phase formation involves in both liquid and solid upon LAL, which allows researchers to choose and combine interesting solid target and liquid to synthesize nanocrystals and fabricate nanostructures of new compounds for purpose of fundamental research and potential applications. (iv) The phase, size and shape of the synthesized nanocrystals can be readily controlled by tuning laser parameters and applying assistances such as inorganic salts or electrical field upon LAL. For example, we have synthesized the micro- and nanocubes of carbon with C(8)-like structures by the inorganic salts assisted LAL, and the micro- and nanocubes and spindles of GeO(2) by the electrical field assisted LAL. Additionally, we have developed a new technique to fabricate functional nanopatterns on the basis of the pulsed-laser deposition in liquid. Accordingly, LAL could greatly extend its application in fabrication of functional nanostructures in the future.

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Localized Nanodiamond Crystallization and Field Emission Performance Improvement of Amorphous Carbon upon Laser Irradiation in Liquid

Cited by 16 publications

References 44 publications

What controls the composition and the structure of nanomaterials generated by laser ablation in liquid solution?

What controls the composition and the structure of nanomaterials generated by laser ablation in liquid solution?

Carbon-Based Nanostructures Obtained in Water by Ultrashort Laser Pulses

From nanocrystal synthesis to functional nanostructure fabrication: laser ablation in liquid

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