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Fabrication and upconversion luminescence of novel transparent Er2O3 ceramics
Wang, LR; Lu, B; Liu, X; Shi, Y; Li, J; Liu, YX
2020-04-01
Source PublicationJOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN0955-2219
Issue4Pages:1767
SubtypeArticle
AbstractTransparent Er2O3 ceramics were successfully fabricated via vacuum sintering for the first time, using low-temperature synthetic layered rare-earth hydroxide (LRH) as the precursor. The LRH exhibits single crystal structure and characteristic two-dimensional nanosheet morphology with a thickness of only similar to 10 nm. Calcining the LRH precursor at optimum temperature of 1000 degrees C yields a rounded fine oxide powder with an average particle size of similar to 35 nm and relatively uniform size distribution. With the sinterable oxide particle, the vacuum sintered Er2O3 ceramic has a relatively high transparency of 80 % at around 5.4 mu m (similar to 99 % of the theoretical value) and an average grain size of similar to 55 mu m. Under 980 nm laser excitation, the Er2O3 ceramic displays strong red emission at similar to 654-685 nm and weak green emission at similar to 553-565 nm arising from F-4(9/2)-> I-4(15/2) and (S3/2H11/2)-S-4-H-2 -> I-4(15/2) transitions, respectively. The intensities of red and green emissions rise along with increasing laser output powers, the upconversion mechanisms of which are both attributable to two-phonon processes. The CIE chromaticity diagrams move towards cooler tone from yellow to greenish-yellow colours with enhanced output powers. The lifetimes of the Er2O3 ceramic were determined to be similar to 13.0 and 8.4 mu s for the 684 and 565 nm emissions, respectively.
DOI10.1016/j.jeurceramsoc.2019.11.048
WOS KeywordHIGHLY TRANSPARENT ; EMISSION ; GD ; ER ; HO
Language英语
WOS Research AreaMaterials Science
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/28195
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Wang, LR,Lu, B,Liu, X,et al. Fabrication and upconversion luminescence of novel transparent Er2O3 ceramics[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2020(4):1767.
APA Wang, LR,Lu, B,Liu, X,Shi, Y,Li, J,&Liu, YX.(2020).Fabrication and upconversion luminescence of novel transparent Er2O3 ceramics.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY(4),1767.
MLA Wang, LR,et al."Fabrication and upconversion luminescence of novel transparent Er2O3 ceramics".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY .4(2020):1767.
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