Defects in ZnO nanoparticles laser-ablated in water-ethanol mixtures at different pressures

Taku Goto; Mitsuhiro Honda; Sergei A. Kulinich; Yoshiki Shimizu; Tsuyohito Ito

doi:10.7567/JJAP.54.070305

Defects in ZnO nanoparticles laser-ablated in water-ethanol mixtures at different pressures

Taku Goto, Mitsuhiro Honda, Sergei A. Kulinich^*, Yoshiki Shimizu, Tsuyohito Ito

^*Corresponding author for this work

Aston Institute of Photonic Technologies (AiPT)

Research output: Contribution to journal › Article › peer-review

Abstract

The effect of liquid medium and its pressure on the photoluminescence of ZnO nanoparticles prepared via laser ablation of Zn targets in various water-ethanol mixtures is studied. As the ethanol content increases, the photoluminescence of the product changes, while metallic zinc is observed to emerge in nanomaterials prepared in ethanol-rich environments. The applied pressure had a less profound effect, mainly affecting materials produced in water or water-ethanol, and much less those generated in pressurized ethanol. Tuning the reactivity of the liquid and pressurizing it during laser ablation is demonstrated to be promising for tailoring the emission properties of the product.

Original language	English
Article number	070305
Number of pages	4
Journal	Japanese Journal of Applied Physics
Volume	54
Issue number	7
Early online date	16 Jun 2015
DOIs	https://doi.org/10.7567/JJAP.54.070305
Publication status	Published - Jul 2015

Bibliographical note

© IOP

Funding: Japan Society for the Promotion of Science (JSPS) and the Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT).

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10.7567/JJAP.54.070305

Defects in ZnO nanoparticles laser-ablated in water-ethanol mixtures
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http://iopscience.iop.org/1347-4065/54/7/070305/

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title = "Defects in ZnO nanoparticles laser-ablated in water-ethanol mixtures at different pressures",

abstract = "The effect of liquid medium and its pressure on the photoluminescence of ZnO nanoparticles prepared via laser ablation of Zn targets in various water-ethanol mixtures is studied. As the ethanol content increases, the photoluminescence of the product changes, while metallic zinc is observed to emerge in nanomaterials prepared in ethanol-rich environments. The applied pressure had a less profound effect, mainly affecting materials produced in water or water-ethanol, and much less those generated in pressurized ethanol. Tuning the reactivity of the liquid and pressurizing it during laser ablation is demonstrated to be promising for tailoring the emission properties of the product.",

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AU - Kulinich, Sergei A.

AU - Shimizu, Yoshiki

AU - Ito, Tsuyohito

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Defects in ZnO nanoparticles laser-ablated in water-ethanol mixtures at different pressures

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