Pulsed Laser Ablation Induced Fragmentation, Transformation, Internal Stress, Sn2+/H+ Cosignature, and Optical Property Change of SnO2 Powders in Water

Lu, Hui-Di; Lin, Bo-Cheng; Chen, Shuei-Yuan; Shen, Pouyan

doi:10.1021/jp2090268

Cited by 9 publications

(6 citation statements)

References 51 publications

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“…450 Irradiating rutile-type SnO 2 powders led to the formation of a high-pressure-stabilized α-PbO 2 -type structure. 451 Other high-pressure-phase NMs that have been successfully developed by LSPC include doped γand θ-Al 2 O 3 nanocrystals, 201 defective calcite II and hydrates, 452 wurtzite-type (W)-ZnO and ε-Zn(OH) 2 composite nanocondensates, 453 baddeleyite-type TiO 2 , 454 and the high-pressure phase of tetragonal Ge. 455 The creation of high-pressure phase NMs has been hypothesized to result from the fast cooling of the plasma plume, which causes densification during nucleation.…”

Section: Chemical Reviewssupporting

confidence: 55%

“…For instance, after performing LFL in water, monoclinic H-type Nb 2 O 5 powders were transformed into either orthorhombic T- or pseudohexagonal TT-type materials, with the amorphous phase acting as a precursor for the high-pressure phases . Irradiating rutile-type SnO 2 powders led to the formation of a high-pressure-stabilized α-PbO 2 -type structure . Other high-pressure-phase NMs that have been successfully developed by LSPC include doped γ- and θ-Al 2 O 3 nanocrystals, defective calcite II and hydrates, wurtzite-type (W)-ZnO and ε-Zn(OH) 2 composite nanocondensates, baddeleyite-type TiO 2 , and the high-pressure phase of tetragonal Ge .…”

Section: Material Process Liquid and Laser Parametersmentioning

confidence: 99%

“…Although water has the drawbacks that it will contribute to NP oxidization if decomposed by the plasma and supports the complexing/dissolution of cations, nonoxidized NPs can be successfully synthesized, as shown in Table . Additionally, water is extensively used for LPC of oxides, ,, carbonate, graphene, and AuNPs , and postirradiation of the LAL-synthesized products for size reduction. Moreover, small bubbles originating from the photodissociation and evaporation of water during laser ablation are assumed to facilitate the formation of hollow NPs with larger surface areas .…”

Section: Material Process Liquid and Laser Parametersmentioning

confidence: 99%

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Laser Synthesis and Processing of Colloids: Fundamentals and Applications

2017

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Driven by functionality and purity demand for applications of inorganic nanoparticle colloids in optics, biology, and energy, their surface chemistry has become a topic of intensive research interest. Consequently, ligand-free colloids are ideal reference materials for evaluating the effects of surface adsorbates from the initial state for application-oriented nanointegration purposes. After two decades of development, laser synthesis and processing of colloids (LSPC) has emerged as a convenient and scalable technique for the synthesis of ligand-free nanomaterials in sealed environments. In addition to the high-purity surface of LSPC-generated nanoparticles, other strengths of LSPC include its high throughput, convenience for preparing alloys or series of doped nanomaterials, and its continuous operation mode, suitable for downstream processing. Unscreened surface charge of LSPC-synthesized colloids is the key to achieving colloidal stability and high affinity to biomolecules as well as support materials, thereby enabling the fabrication of bioconjugates and heterogeneous catalysts. Accurate size control of LSPC-synthesized materials ranging from quantum dots to submicrometer spheres and recent upscaling advancement toward the multiple-gram scale are helpful for extending the applicability of LSPC-synthesized nanomaterials to various fields. By discussing key reports on both the fundamentals and the applications related to laser ablation, fragmentation, and melting in liquids, this Article presents a timely and critical review of this emerging topic.

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Section: Chemical Reviewssupporting

confidence: 55%

Section: Material Process Liquid and Laser Parametersmentioning

confidence: 99%

Section: Material Process Liquid and Laser Parametersmentioning

confidence: 99%

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Laser Synthesis and Processing of Colloids: Fundamentals and Applications

2017

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“…07-0195), as shown infigure 1(e). The selected-area electron diffraction (SAED) patterns (inset) are harmony with the planes observed in the HRTEM image[12].…”

supporting

confidence: 54%

SnO_x@β–SnO heterostructures and their enhanced photocurrent in photoelectrochemical cell

Zheng

Zeng

Xia

et al. 2020

Mater. Res. Express

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To improve the effective separation of the photogenerated electrons and holes, SnO x @β-SnO composites on titanium meshes were prepared by using a standard one-step hydrothermal procedure. As photoanodes in photoelectrochemical cell, the SnO x @β-SnO composites exhibited a photocurrent density of 150 μA cm −2 at 0.0 V versus Ag/AgCl under visible light illumination. The improved photocurrent can be explained as, the Sn 2+ 5s impurity states in SnO 2 have a band gap energy of 2.24 eV, SnO x @β-SnO composites construct a type-II heterojunction. And titanium meshes have a good conductivity, which is beneficial to transferring electron from the conduction band of SnO 2 to external circuit. Furthermore, the SnO x @β-SnO heterostructures have a larger electrochemical specific surface area, and stronger light absorption from 350-800 nm.

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“…The average binding energy (BE) values with uncertainties estimated at $ AE 0.01 eV are listed in Table 1, in which we observed that the BE values of Se3d (54.30-54.40 eV) are lower than those of single element Se (55.3 eV) [14], but close to those of Se 2À (GeSe: $54.5 eV; Bi 2 Se 3 : $54.2 eV) [14], which confirms the existence of the formal negative charge of Se 2À . The BE value of Sn3d/ 5/2 is 486.05-486.50 eV, close to that of Sn 4þ (SnO 2 : 486.0-486.3 eV [15][16][17]) and Sn 2þ (SnO; 486.3-486.6 eV [14,[17][18][19]), indicates the presence of mixedvalence states of Sn (Sn(4þ) and Sn(2þ)) in In 6 Se 7 . The BE value of In3d/ 5/2 is identified to be 445.0-445.05 eV, which is roughly equal to those of In þ (444.6-445.2 eV) in bulk InCl [20] and In 3þ (444.9 eV) in In(OH) 3 [21].…”

Section: Te Transport-property Measurementsmentioning

confidence: 62%

Improvement in thermoelectric performance of In₆Se₇ by substitution of Sn for In

Cheng

Chen

et al. 2016

Physica Status Solidi (a)

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In this work we have observed a remarkable improvement in the thermoelectric (TE) performance of In6–xSnxSe7 (ZT = ∼0.28 at x = 0.1, 833 K) compared to that of pristine In6Se7 (ZT = 0.015 at 640 K). This improvement is mainly attributed to the creation of active donor defects SnIn3+ as Sn(4+) is energetically favorable to In+ sites. Although Sn (2+), which generates a defect SnIn− as an acceptor when it is incorporated into the In3+ sites, has a negative effect on the transport properties, the counter effect from Sn(4+) and Sn(2+) suggests that In6Se7‐based alloys are prospectively good thermoelectric candidates if their chemical compositions are well optimized.

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Pulsed Laser Ablation Induced Fragmentation, Transformation, Internal Stress, Sn²⁺/H⁺ Cosignature, and Optical Property Change of SnO₂ Powders in Water

Cited by 9 publications

References 51 publications

Laser Synthesis and Processing of Colloids: Fundamentals and Applications

Laser Synthesis and Processing of Colloids: Fundamentals and Applications

SnO_x@β–SnO heterostructures and their enhanced photocurrent in photoelectrochemical cell

Improvement in thermoelectric performance of In₆Se₇ by substitution of Sn for In

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Pulsed Laser Ablation Induced Fragmentation, Transformation, Internal Stress, Sn2+/H+ Cosignature, and Optical Property Change of SnO2 Powders in Water

Cited by 9 publications

References 51 publications

Laser Synthesis and Processing of Colloids: Fundamentals and Applications

Laser Synthesis and Processing of Colloids: Fundamentals and Applications

SnO x @β–SnO heterostructures and their enhanced photocurrent in photoelectrochemical cell

Improvement in thermoelectric performance of In6Se7 by substitution of Sn for In

Contact Info

Product

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Pulsed Laser Ablation Induced Fragmentation, Transformation, Internal Stress, Sn²⁺/H⁺ Cosignature, and Optical Property Change of SnO₂ Powders in Water

SnO_x@β–SnO heterostructures and their enhanced photocurrent in photoelectrochemical cell

Improvement in thermoelectric performance of In₆Se₇ by substitution of Sn for In