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Effect of Mn-doping on optical properties of lead-free (K0.4Na0.6)NbO3 ferroelectric single crystals
Hu, YQ; Xie, QX; Wu, Y; Zhao, XY; Tang, YX; Wang, FF; Duan, ZH; Lin, D; Luo, HS; Liang, RH
2020-07-01
Source PublicationJOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN0955-2219
Issue8Pages:2917
SubtypeArticle
AbstractOptical properties of < 001 > -oriented pure (K0.4Na0.6)NbO3 (KNN) and 0.5 wtWo Mn-doped KNN (Mn-KNN) single crystals were studied. The refractive indices (n) of both crystals exhibited a normal dispersion behavior in the wavelength range of 300 -1100 nm. The modified Sellmeier dispersion equations for n were obtained by least-squares fit. In addition, Sellmeier coefficients were determined by single-oscillator dispersion relation, which related to energy band structures of crystals. Compared with KNN, a decrease about 10 % in transmittance (over 350 nm) was observed in Mn-KNN due to the losses resulting from the increase of domain wall density. Furthermore, a 20 nm blue-shift in the absorption edge was observed for Mn-KNN. Based on Tauc equation, the band gap energies of 3.26 and 3.42 eV were obtained for KNN and Mn-KNN, respectively. The increase of band gap energy in Mn-KNN was attributed to the distortion of BO6 octahedron building block caused by Mn2+ occupying the B-site.
DOI10.1016/j.jeurceramsoc.2020.03.017
WOS KeywordDISPERSION ; CERAMICS ; STRAIN
Language英语
WOS Research AreaMaterials Science
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27929
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Hu, YQ,Xie, QX,Wu, Y,et al. Effect of Mn-doping on optical properties of lead-free (K0.4Na0.6)NbO3 ferroelectric single crystals[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2020(8):2917.
APA Hu, YQ.,Xie, QX.,Wu, Y.,Zhao, XY.,Tang, YX.,...&Liang, RH.(2020).Effect of Mn-doping on optical properties of lead-free (K0.4Na0.6)NbO3 ferroelectric single crystals.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY(8),2917.
MLA Hu, YQ,et al."Effect of Mn-doping on optical properties of lead-free (K0.4Na0.6)NbO3 ferroelectric single crystals".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY .8(2020):2917.
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