The study of structural and optical properties of (Eu, La, Sm) codoped ZnO nanoparticles via a chemical route | |
Lang, J.; Q. Zhang; Q. Han; Y. Fang; J. Wang; X. Li; Y. Liu; D. Wang and J. Yang | |
刊名 | Materials Chemistry and Physics
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2017 | |
卷号 | 194 |
英文摘要 | The (Eu, La, Sm) ions were doped into ZnO nanoparticles by a chemical route, and the substitution of (Eu, La, Sm) for Zn2+ions was proved by analytic techniques of X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman, transmission electron microscope (TEM), photoluminescence (PL) and UVvis absorption spectroscopy. The results revealed that the codoping did not change the wurtzite structure of ZnO nanoparticles, but the diameter of the nanoparticles decreased with increasing the rare earth (RE) doping concentrations. The optical bandgaps calculated through UVvisible absorption spectroscopy were found to decrease from 3.26 to 3.14 eV with increasing the RE doping concentrations, which also proved by the slight shift of UV positions in PL spectra. The sharp red emissions located at 578.2, 590.1 and 615.7 nm were originated from the 4f-4f transitions in Eu3+ions under excitation of 325 nm. And these red emissions of Eu3+ions showed a strong correlation with the energy storage centers of oxygen vacancies in the samples which was introduced by the other RE ions of La3+and Sm3+codoping. 2017 Elsevier B.V. |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.ciomp.ac.cn/handle/181722/58986] ![]() |
专题 | 长春光学精密机械与物理研究所_中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Lang, J.,Q. Zhang,Q. Han,et al. The study of structural and optical properties of (Eu, La, Sm) codoped ZnO nanoparticles via a chemical route[J]. Materials Chemistry and Physics,2017,194. |
APA | Lang, J..,Q. Zhang.,Q. Han.,Y. Fang.,J. Wang.,...&D. Wang and J. Yang.(2017).The study of structural and optical properties of (Eu, La, Sm) codoped ZnO nanoparticles via a chemical route.Materials Chemistry and Physics,194. |
MLA | Lang, J.,et al."The study of structural and optical properties of (Eu, La, Sm) codoped ZnO nanoparticles via a chemical route".Materials Chemistry and Physics 194(2017). |
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