Optical properties and theoretical study of Mn doped ZnAl2O4 nanoparticles with spinel structure
Huang, Shangpan1,2; Wei, Zhiqiang1,2; Wu, Xiaojuan1,2; Shi, Jiwen1,2
2020-06-05
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume825
AbstractZn1-xMnxAl2O4 (x = 0, 0.10, 0.20, 0.30 and 0.40) nanoparticles were synthesized by hydrothermal method, and the effects of Mn doping on the microstructure, morphology, binding energy and optical property of the samples were characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HRTEM), energy dispersive X-ray spectroscopy (EDX), x-ray photoemission spectroscopy (XPS), ultraviolet-visible (UV-Vis) spectroscopy, photoluminescence spectra (PL) and fourier transform infrared spectroscopy (FT-IR). And the energy band structure of various defects in ZnAl2O4 structure were calculated by means of the first-principles calculations. The experimental results show that Zn1-xMnxAl2O4 nanoparticles possess cubic spinel structure without other impurity phases. The morphology of the samples exhibits irregular spherical or ellipsoid particles with uniform particle size. EDX Mapping display that Zn, Al, O and Mn elements are uniformly distributed without any enrichment phenomenon throughout the sample. Mn ions successfully used as doping agent replaced Zn2+ and entered ZnAl2O4 matrix. Combined with the calculated results of the first principle calculations, the substitution of Mn introduced new energy levels, which level make the intensity of PL spectra decrease and occur quenching phenomenon. XPS spectra demonstrate that the doped Mn ions mainly occupy the tetrahedral sites. UV-vis spectra indicate with the increase of Mn ion concentration, the band gap of the doped sample decrease with the increase of Mn content and exhibit red shift. FT-IR show that all Mn2+ ions substituted for Zn2+ ions without changing ZnAl2O4 spinel structure. (C) 2020 Elsevier B.V. All rights reserved.
KeywordZnAl2O4 Manganese doped Optical properties First-principles calculations
DOI10.1016/j.jallcom.2020.154004
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51261015] ; Natural Science Foundation of Gansu Province, China[1308RJZA238]
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000514848600075
PublisherELSEVIER SCIENCE SA
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64215
Collection省部共建有色金属先进加工与再利用国家重点实验室
理学院
Corresponding AuthorWei, Zhiqiang
Affiliation1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
2.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Peoples R China
First Author AffilicationState Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials;  Coll Sci
Corresponding Author AffilicationState Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials;  Coll Sci
First Signature AffilicationState Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials
Recommended Citation
GB/T 7714
Huang, Shangpan,Wei, Zhiqiang,Wu, Xiaojuan,et al. Optical properties and theoretical study of Mn doped ZnAl2O4 nanoparticles with spinel structure[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,825.
APA Huang, Shangpan,Wei, Zhiqiang,Wu, Xiaojuan,&Shi, Jiwen.(2020).Optical properties and theoretical study of Mn doped ZnAl2O4 nanoparticles with spinel structure.JOURNAL OF ALLOYS AND COMPOUNDS,825.
MLA Huang, Shangpan,et al."Optical properties and theoretical study of Mn doped ZnAl2O4 nanoparticles with spinel structure".JOURNAL OF ALLOYS AND COMPOUNDS 825(2020).
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