Structure and morphologies of ZnO nanoparticles synthesized by pulsed laser ablation in liquid: Effects of temperature and energy fluence

Autor:	T.K. Das Roy, Bindu Krishnan, Sadasivan Shaji, G. García Guillén, Maria Isabel Mendivil Palma, G.A. Castillo, David Avellaneda Avellaneda
Rok vydání:	2015
Předmět:	Photoluminescence Materials science Absorption spectroscopy Analytical chemistry Nanoparticle chemistry.chemical_element Zinc Condensed Matter Physics Laser law.invention Nanomaterials chemistry X-ray photoelectron spectroscopy law General Materials Science Spectroscopy
Zdroj:	Materials Chemistry and Physics. 162:561-570
ISSN:	0254-0584
DOI:	10.1016/j.matchemphys.2015.06.030
Popis:	Zinc oxide nanoparticles were prepared by pulsed laser ablation of a zinc metal target at different water temperatures (room temperature, 50, 70 and 90 °C). Ablation was carried out using 532 nm output from a pulsed (10 ns, 10 Hz) Nd:YAG laser at three different laser fluence. Analysis of the morphology, crystalline phase, elemental composition, optical and luminescent properties were done using Transmission Electron Microscopy (TEM), X-Ray Photoelectron Spectroscopy (XPS), UV–visible absorption spectroscopy and photoluminescence spectroscopy. TEM analysis showed that a change in temperature resulted in ZnO and Zn(OH)2 nanoparticles with different sizes and morphologies. XPS results confirmed the compositions and chemical states of these nanoparticles. These zinc nanomaterials showed emission in the ultraviolet (UV) and blue regions. The results of this work demonstrated that by varying the liquid medium temperature, the structure, composition, morphology and optical properties of the nanomaterials could be modified during pulsed laser ablation in liquid.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f1b4d28e1420ae14b1d1b2696993b170 https://doi.org/10.1016/j.matchemphys.2015.06.030 Zobrazit plný text záznamu Full Text from ScienceDirect