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Defects and microstructure of highly conducting Al-doped ZnO ceramics obtained via spark plasma sintering
Chen, HX; Sun, QY; Tian, T; Zheng, LY; Barre, M; Monot-Laffez, I; Makowska-Janusik, M; Li, GR; Kassiba, AH
2020-12-01
Source PublicationJOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN0955-2219
Issue15Pages:5529
SubtypeArticle
AbstractAl-doped ZnO ceramics were sintered by conventional sintering method and spark plasma sintering (SPS) respectively. Electrical properties and microstructure have been investigated by various measurements. The samples sintered via SPS exhibit a huge electrical conductivity, up to 3.0 x 10(5) S/m at room temperature, which was much higher than that of the sample sintered via the conventional sintering. Structural and morphorlogical characterizations pointed out that the further incorporation of Al ions and the absence of a secondary phase, contribute to the increase of the carrier concentration. Raman spectroscopy revealed the occurrence of structural distortions and a disorder induced by Al doping. Photoluminescence spectra were interpreted by different electronic active defects such as the defect complexes (Al-Zn-Zn-i) which play a key for the high electrical conductivity. Thus, SPS and Al doping modified the microstructure and the concentration of the electronic active defects to ensure high electrical conductivities in doped ZnO-based ceramics.
DOI10.1016/j.jeurceramsoc.2020.06.030
WOS KeywordTHERMOELECTRIC PROPERTIES ; ELECTRICAL-CONDUCTIVITY ; OPTICAL-PROPERTIES ; GREEN EMISSION ; NANOPARTICLES ; LUMINESCENCE ; TEMPERATURE ; ATMOSPHERE ; ABSORPTION
Language英语
WOS Research AreaMaterials Science
PublisherELSEVIER SCI LTD
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27603
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Chen, HX,Sun, QY,Tian, T,et al. Defects and microstructure of highly conducting Al-doped ZnO ceramics obtained via spark plasma sintering[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2020(15):5529.
APA Chen, HX.,Sun, QY.,Tian, T.,Zheng, LY.,Barre, M.,...&Kassiba, AH.(2020).Defects and microstructure of highly conducting Al-doped ZnO ceramics obtained via spark plasma sintering.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY(15),5529.
MLA Chen, HX,et al."Defects and microstructure of highly conducting Al-doped ZnO ceramics obtained via spark plasma sintering".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY .15(2020):5529.
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