Direct observation of blocked nanoscale surface evaporation on SiO 2 nanodroplets

Neng Wan; Jun Xu; Li Tao Sun; Matteo Martini; Qing An Huang; Xiao Hui Hu; Tao Xu; Heng Chang Bi; Jun Sun

doi:10.1063/1.4765662

Direct observation of blocked nanoscale surface evaporation on SiO ₂ nanodroplets

Neng Wan, Jun Xu, Li Tao Sun, Matteo Martini, Qing An Huang, Xiao Hui Hu, Tao Xu, Heng Chang Bi, Jun Sun

科研成果: 期刊稿件 › 文章 › 同行评审

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摘要

Nano-scale surface evaporation of SiO ₂ nanodroplets from a volcano-shaped tip (tip diameter d ∼ 20 nm to 70 nm) was observed directly using an in situ transmission electron microscopy method. Au nanoparticles, those precipitated in the SiO ₂ matrix after an Au catalyzed growth, diffused and pinned onto the evaporation surface, which induced blocked evaporation dynamics. Our observations provide direct evidences of blocked evaporation dynamics caused by small-sized nanoparticles at the nanometer scale.

源语言	英语
文章编号	183114
期刊	Applied Physics Letters
卷	101
期	18
DOI	https://doi.org/10.1063/1.4765662
出版状态	已出版 - 29 10月 2012
已对外发布	是

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10.1063/1.4765662

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abstract = "Nano-scale surface evaporation of SiO 2 nanodroplets from a volcano-shaped tip (tip diameter d ∼ 20 nm to 70 nm) was observed directly using an in situ transmission electron microscopy method. Au nanoparticles, those precipitated in the SiO 2 matrix after an Au catalyzed growth, diffused and pinned onto the evaporation surface, which induced blocked evaporation dynamics. Our observations provide direct evidences of blocked evaporation dynamics caused by small-sized nanoparticles at the nanometer scale.",

author = "Neng Wan and Jun Xu and Sun, {Li Tao} and Matteo Martini and Huang, {Qing An} and Hu, {Xiao Hui} and Tao Xu and Bi, {Heng Chang} and Jun Sun",

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AU - Wan, Neng

AU - Xu, Jun

AU - Sun, Li Tao

AU - Martini, Matteo

AU - Huang, Qing An

AU - Hu, Xiao Hui

AU - Xu, Tao

AU - Bi, Heng Chang

AU - Sun, Jun

PY - 2012/10/29

Y1 - 2012/10/29

N2 - Nano-scale surface evaporation of SiO 2 nanodroplets from a volcano-shaped tip (tip diameter d ∼ 20 nm to 70 nm) was observed directly using an in situ transmission electron microscopy method. Au nanoparticles, those precipitated in the SiO 2 matrix after an Au catalyzed growth, diffused and pinned onto the evaporation surface, which induced blocked evaporation dynamics. Our observations provide direct evidences of blocked evaporation dynamics caused by small-sized nanoparticles at the nanometer scale.

AB - Nano-scale surface evaporation of SiO 2 nanodroplets from a volcano-shaped tip (tip diameter d ∼ 20 nm to 70 nm) was observed directly using an in situ transmission electron microscopy method. Au nanoparticles, those precipitated in the SiO 2 matrix after an Au catalyzed growth, diffused and pinned onto the evaporation surface, which induced blocked evaporation dynamics. Our observations provide direct evidences of blocked evaporation dynamics caused by small-sized nanoparticles at the nanometer scale.

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VL - 101

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 18

M1 - 183114

ER -

Direct observation of blocked nanoscale surface evaporation on SiO 2 nanodroplets

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Direct observation of blocked nanoscale surface evaporation on SiO ₂ nanodroplets