期刊
JOURNAL OF MODERN OPTICS
卷 67, 期 1, 页码 49-54出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09500340.2019.1682204
关键词
Pulsed-laser ablation in liquids; laser-induced plasma; electron temperature; optical control; layered nanocrystals; LTE spectra
类别
资金
- National Science Foundation CCI Solar Fuels Program [CHE-1305124]
- Arnold and Mabel Beckman Foundation
- University of Rochester, Hajim School of Engineering & Applied Sciences
Pulsed-laser ablation in liquids capitalizes on combining chemical and optical control to rapidly generate size, composition, and phase-controlled nanostructures, without the need for surfactants. Very high temperatures, which we determined to be ca. (8,400 +/- 1,300) K, pressures, and ion densities exist in the laser-induced liquid-confined plasma. These unique conditions, coupled with the rapid cooling during which nanoparticles are formed, permitted access to new extreme regions of materials' phase diagrams. This way, we produced metastable layered copper and zinc hydroxide-based nanocrystals with interesting physical properties that can serve as precursors for two-dimensional inorganic semiconductor nanomaterials.
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