Fabrication and thermal evolution of nanoparticles in SiO2 by Zn ion implantation

Shen, Youming; LI, Xu; Wang, Zhuo; Zhang, Lili; Zhang, Dacheng; Li, Mengkai; Yuan, Bing; Li, Zhaodong; Liu, Changlong

doi:10.1016/j.jcrysgro.2009.08.029

Cited by 17 publications

(6 citation statements)

References 28 publications

(33 reference statements)

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“…Many research groups have studied ZnO nanostructure formation in SiO 2 matrices using ion beam synthesis and thermal oxidation . Simultaneously, it has been found that for annealing temperature above 800 °C, ZnO bonding starts to break down and nanocrystalline Zn 2 SiO 4 (willemite) forms . Furthermore, although no dopant was introduced during implantation, the emission spectrum of silica‐willemite composite resembles that of bulk Zn 2 SiO 4 :Mn phosphors.…”

Section: Introductionmentioning

confidence: 99%

Ion‐beam synthesis and thermal behaviour of luminescent Zn₂SiO₄ nanoparticles in silica glasses and films

Zatsepin

Бунтов

Гаврилов

et al. 2016

Physica Status Solidi (b)

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In the present study, the temperature-dependent photoluminescence (PL) spectra of Zn 2 SiO 4 nano-crystalline phases formed in glassy and thin-film SiO 2 matrices by means of ion implantation and annealing are studied. Pure willemite ceramics were used as a reference. The green and yellow light emission observed is associated with point defects inside aand b-Zn 2 SiO 4 nanoparticles. Different PL excitation mechanisms were distinguished for implanted silica. The electronic states of point defects are localised to dimensions much smaller than the nanocrystal size, so the PL band positions are similar to those of bulk material. Conversely, the vibrational states are extended and therefore subjected to the effects of confinement, surface defects and disorder of the host matrix. Hence, the PL intensity quenching (different laws for a-phase and b-phase) and line broadening shed light to the PL emission mechanism and reveal the influence of the amorphous silica matrix. The results obtained may be used to tailor the optical properties of the nanocomposite over a wide temperature range.

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Section: Introductionmentioning

confidence: 99%

Ion‐beam synthesis and thermal behaviour of luminescent Zn₂SiO₄ nanoparticles in silica glasses and films

Zatsepin

Бунтов

Гаврилов

et al. 2016

Physica Status Solidi (b)

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“…Such a band has been widely detected in high-fluence Zn-implanted SiO 2 substrate and is generally ascribed to the formation of Zn NPs into SiO 2 . 28,29 Actually, as seen from Figure 1d, after post Zn ion implantation at high fluence, most of the Cu atoms have been sputtered and Zn with a high concentration remains in the subsurface region, which results in the formation of Zn NPs. Interestingly, for the post Zn ions implanted at the intermediate fluence (i.e., 5.0 × 10 16 cm −2 ), the absorption spectrum presents a strong absorption peak at 530 nm together with a wide absorption band in the range of 240−295 nm.…”

Section: Resultsmentioning

confidence: 99%

Zn Ion Post-Implantation-Driven Synthesis of CuZn Alloy Nanoparticles in Cu-Preimplanted Silica and Their Thermal Evolution

Jia

et al. 2013

ACS Appl. Mater. Interfaces

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Cu nanoparticles (NPs) were fabricated in silica by 45 keV Cu ion implantation at a fluence of 1.0 × 10(17) cm(-2) and were then subjected to implantation of 50 keV Zn ions at fluences of 1.0 × 10(16), 5.0 × 10(16), and 10.0 × 10(16) cm(-2), respectively. Our results clearly show that post Zn ion implantation could significantly modify structures and components of the preformed Cu NPs and thus the corresponding surface plasmon resonance (SPR) absorption can be modulated in a wide range. In particular, CuZn alloy NPs with unique SPR absorption were synthesized in Cu-implanted silica followed by Zn ion implantation at a fluence of 5.0 × 10(16) cm(-2). During subsequent annealing, two distinguished processes concerning CuZn alloy NPs (i.e., realloying and dealloying) were found that directly result from thermally driven diffusion of Zn atoms. Moreover, owing to Zn diffusion, lots of core-shell nanostructures consisting of Zn-related compound shells around Cu cores were observed after annealing at 500 °C and higher. The underlying mechanism concerning the formation and decomposition of CuZn alloy NPs is discussed and presented.

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“…These nuclei grow additionally as a result of the surface deposition of solvated ions. According to Shen et al [8], the ion beam synthesis of the nanostructured particles could be conceptualized into several steps: (i) stopping and accumulation of F implants in the near-surface area of the host B 6 O matrix, (ii) supersaturation of this area by F implants, (iii) formation of nuclei of a B x O y F z phase, and (iv) growth of the nanoparticles from the nuclei. Stepanov in reference [3] best illustrates the basic physical processes involved in the formation of nanoparticles from an implant with respect to the ion dose in Figure 5 shown below.…”

Section: Raman Spectroscopy Analysismentioning

confidence: 99%

“…In recent years many groups have reported on the ion-beam-assisted 2 Advances in Materials Science and Engineering synthesis of novel nanostructured materials by ion implantation [3,[5][6][7]. In addition, unique and sometimes superior mechanical [1,8], structural [2,[9][10][11], optoelectronic [7,12], corrosion, and tribomechanical surface properties [2,13] of the ion-implanted materials have also been reported.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Structural Properties of Fluorine-Ion-Implanted Boron Suboxide

Machaka

Mwakikunga²,

Manikandan

et al. 2012

Advances in Materials Science and Engineering

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Results on a systematic study on the effects of ion implantation on the near-surface mechanical and structural properties of boron suboxide (B6O) prepared by uniaxial hot pressing are reviewed. 150 keV fluorine ions at fluences of up to5.0×1016 ions/cm2were implanted into the ultrahard ceramic material at room temperature and characterized using Raman spectroscopy, atomic force microscopy, and scanning electron microscopy with energy-dispersive X-ray spectroscopy. Evidence of ion-beam-assisted nucleation of novel clusteredBxOyFzparticles by ion implantation is revealed. In addition, obtained results also reveal that fluorine implantation into the B6O specimen leads to an overall degradation of near-surface mechanical properties with increasing fluorine fluence. Implications of these observations in the creation of amorphous near-surface layers by high-dose ion implantation are discussed in this paper.

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Fabrication and thermal evolution of nanoparticles in SiO2 by Zn ion implantation

Cited by 17 publications

References 28 publications

Ion‐beam synthesis and thermal behaviour of luminescent Zn₂SiO₄ nanoparticles in silica glasses and films

Ion‐beam synthesis and thermal behaviour of luminescent Zn₂SiO₄ nanoparticles in silica glasses and films

Zn Ion Post-Implantation-Driven Synthesis of CuZn Alloy Nanoparticles in Cu-Preimplanted Silica and Their Thermal Evolution

Mechanical and Structural Properties of Fluorine-Ion-Implanted Boron Suboxide

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Fabrication and thermal evolution of nanoparticles in SiO2 by Zn ion implantation

Cited by 17 publications

References 28 publications

Ion‐beam synthesis and thermal behaviour of luminescent Zn2SiO4 nanoparticles in silica glasses and films

Ion‐beam synthesis and thermal behaviour of luminescent Zn2SiO4 nanoparticles in silica glasses and films

Zn Ion Post-Implantation-Driven Synthesis of CuZn Alloy Nanoparticles in Cu-Preimplanted Silica and Their Thermal Evolution

Mechanical and Structural Properties of Fluorine-Ion-Implanted Boron Suboxide

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Ion‐beam synthesis and thermal behaviour of luminescent Zn₂SiO₄ nanoparticles in silica glasses and films

Ion‐beam synthesis and thermal behaviour of luminescent Zn₂SiO₄ nanoparticles in silica glasses and films