Structural, optical, XPS and magnetic properties of Zn particles capped by ZnO nanoparticles

被引：161

作者：

Morozov, Iu G. ^{[1
]}

Belousova, O. V. ^{[1
]}

Ortega, D. ^{[2
]}

Mafina, M. -K. ^{[3
]}

Kuznetcov, M. V. ^{[4
]}

机构：

[1] Russian Acad Sci, Inst Struct Macrokinet & Mat Sci, Chernogolovka 142432, Moscow Region, Russia

[2] Inst Madrileno Estudios Avanzados Nanociencia IMD, Madrid 28049, Spain

[3] Queen Mary Univ London, Sch Engn & Mat Sci, London E1 4NS, England

[4] UCL, Mat Chem Res Ctr, Dept Chem, London WC1H 0AJ, England

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 633卷

关键词：

Nanoparticles (NPs); Levitation-jet generator; Zinc oxide (ZnO); Optical properties; Room temperature ferromagnetism (RTFM); ROOM-TEMPERATURE FERROMAGNETISM; OXIDE-FILMS; PHOTOLUMINESCENCE PROPERTIES; RADICAL OXIDATION; DOPED ZNO; SIZE; OXYGEN; FE; DEPOSITION; MORPHOLOGY;

D O I：

10.1016/j.jallcom.2015.01.285

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Spherical zinc particles ranging from 42 to 760 nm in average size and capped with plate-like zinc oxide particles of 10-30 nm in sizes have been prepared by levitation-jet aerosol synthesis through condensation of zinc vapor in an inert/oxidizer gas flow. The nanoparticles have been characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), BET measurements, ultra violet visible (UV-vis) spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, Raman spectroscopy, X-ray electron spectroscopy (XPS), superconducting quantum interference device (SQUID), and vibrating-sample magnetometer (VSM). Magnetic and XRD data indicate that the observed ferromagnetic ordering related to the changes in unit-cell volume of Zn in the Zn/ZnO interface of the nanoparticles. These results are in good correlation with the optical measurements data. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：237 / 245

页数：9

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