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A compromise between piezoelectricity and transparency in KNN-based ceramics: The dual functions of Li2O addition
Ren, XD; Peng, ZH; Chen, B; Shi, QQ; Qiao, XS; Wu, D; Li, GR; Jin, L; Yang, ZP; Chao, XL
2020-06-01
Source PublicationJOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN0955-2219
Issue6Pages:2331
SubtypeArticle
AbstractTransparent ceramics with good electrical performance have recently drawn broad interest as promising multifunctional materials. Here, we report that a superior transmittance (T = 75 % at 2000 nm) and good piezoelectricity (d(33) similar to 150 pC/N) can be simultaneously realized in 0.93K(0.5)Na(0.5)NbO(3)-0.07SrZrO(3) (KNN-SZ) ceramics by Li2O regulation. The effect of Li 2 0 regulation has two parts: first, the presence of Li2O facilitates the grain growth of KNN-SZ, considering that it melts at a relatively low temperature as a proper sintering aid; second, the introduced Li(+ )causes local lattice distortion, resulting in the coexistence of orthogonal and tetragonal (O-T) phases. The enlarged grains reduce the light scattering by grain boundaries for a higher optical transmittance; meanwhile, large grains stand as a prerequisite for the macroscopic domain structure favoured for decent piezoelectricity, which could also be partly caused by the coexistence of O-T phases. We believe that these findings might make KNN-based ceramics a preferable candidate for optoelectronic devices.
DOI10.1016/j.jeurceramsoc.2020.01.029
WOS KeywordNONSTOICHIOMETRIC DEFECTS ; TEMPERATURE STABILITY ; ELECTRICAL-PROPERTIES ; OPTICAL-PROPERTIES ; TRANSMITTANCE ; GROWTH
Language英语
WOS Research AreaMaterials Science
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/28034
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Ren, XD,Peng, ZH,Chen, B,et al. A compromise between piezoelectricity and transparency in KNN-based ceramics: The dual functions of Li2O addition[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2020(6):2331.
APA Ren, XD.,Peng, ZH.,Chen, B.,Shi, QQ.,Qiao, XS.,...&Chao, XL.(2020).A compromise between piezoelectricity and transparency in KNN-based ceramics: The dual functions of Li2O addition.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY(6),2331.
MLA Ren, XD,et al."A compromise between piezoelectricity and transparency in KNN-based ceramics: The dual functions of Li2O addition".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY .6(2020):2331.
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