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Selective doping of Ni2+ in highly transparent glass-ceramics containing nano-spinels ZnGa2O4 and Zn1+xGa2-2xGexO4 for broadband near-infrared fiber amplifiers

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dc.contributor.author Gao, Zhigang
dc.contributor.author Liu, Yinyao
dc.contributor.author Ren, Jing
dc.contributor.author Fang, Zaijin
dc.contributor.author Lu, Xiaosong
dc.contributor.author Lewis, Elfed
dc.contributor.author Farrell, Gerald
dc.contributor.author Yang, Jun
dc.contributor.author Wang, Pengfei
dc.date.accessioned 2017-07-26T15:13:37Z
dc.date.available 2017-07-26T15:13:37Z
dc.date.issued 2017
dc.identifier.citation Gao, ZG,Liu, YY,Ren, J,Fang, ZJ,Lu, XS,Lewis, E,Farrell, G,Yang, J,Wang, PF (2017) 'Selective doping of Ni2+ in highly transparent glass-ceramics containing nano-spinels ZnGa2O4 and Zn1+xGa2-2xGexO4 for broadband near-infrared fiber amplifiers'. Scientific Reports, 7 . en_US
dc.identifier.uri http://hdl.handle.net/10344/5918
dc.description peer-reviewed en_US
dc.description.abstract Selective doping of Ni2+ in octahedral sites provided by nanocrystals embedded in glass-ceramics (GCs) is crucial to the enhancement of broadband near-infrared (NIR) emission. In this work, a NIR emission with a full- width-at-half-maximum (FWHM) of 288 nm is first reported from ZnGa2O4: Ni2+ nano-spinels embedded GCs with excellent transparency. A comparison is made of the NIR luminescence properties of Ni2+ doped GCs containing ZnGa2O4, germanium-substituted ZnGa2O4 nano-spinels (Zn1+xGa2-2xGexO4), and Zn2GeO4/Li2Ge4O9 composite nanocrystals that are free of Ga3+. The results show that ZnGa2O4: Ni2+ GCs exhibit a significantly enhanced NIR emission. The incorporation of the nucleating agent TiO2 is favored in terms of the increased luminescence intensity and prolonged lifetime. The possible causes for the enhancement effect are identified from the crystal structure/defects viewpoint. The newly developed GCs incorporate good reproducibility to allow for a tolerance of thermal treatment temperature and hence hold great potential of fiberization via the recently proposed "melt-in-tube" method. They can be considered as promising candidates for broadband fiber amplifiers. en_US
dc.language.iso eng en_US
dc.publisher Nature Publishing Group en_US
dc.relation.ispartofseries Scientific Reports;7:1783
dc.relation.uri http://dx.doi.org/10.1038/s41598-017-01676-6
dc.subject long-persistent luminescence en_US
dc.subject in-tube method en_US
dc.subject silicate glass en_US
dc.subject emission en_US
dc.title Selective doping of Ni2+ in highly transparent glass-ceramics containing nano-spinels ZnGa2O4 and Zn1+xGa2-2xGexO4 for broadband near-infrared fiber amplifiers en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.date.updated 2017-07-26T14:57:27Z
dc.description.version PUBLISHED
dc.identifier.doi 10.1038/s41598-017-01676-6
dc.contributor.sponsor National Natural Science Foundation of China en_US
dc.contributor.sponsor National Key Scientific Instrument and Equipment Development Project en_US
dc.relation.projectid 61227013 en_US
dc.relation.projectid 51302082 en_US
dc.relation.projectid 61307104 en_US
dc.relation.projectid 61422505 en_US
dc.relation.projectid 61405044 en_US
dc.relation.projectid 61575050 en_US
dc.relation.projectid 2013YQ040815 en_US
dc.relation.projectid NCET-12-0623 en_US
dc.relation.projectid KLALMD-2015-07 en_US
dc.relation.projectid B13015 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 2714864
dc.internal.copyrightchecked Yes
dc.identifier.journaltitle Scientific Reports
dc.description.status peer-reviewed


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