Abstract
We report the preparation method and broadband near infrared emission characteristics of nickel ion-doped NaSbO3 ceramics in an easy way. Selective doping of Ni2+ ions into proper octahedral sites is crucial to the enhancement of broadband near-infrared (NIR) emission. In this work, a broadband NIR emission with central wavelength at 1430 nm and with a full-width-at-half-maximum (FWHM) of 230 nm is reported from Ni2+ ion-doped perovskite NaSbO3 lattice, which has never been reported until now, to the best of our knowledge. Nickel ion doped NaSbO3 nanocrystals was elaborated to show the prospect that this kind of perovskite nanostructure is promising for transition metal ion (TMI) based photonics. A red shift of the emission spectra is observed comparing to the most of the former research, which is due to the Ni2+ ions embedded into the low crystal field. The broadband of NIR emission in the NaSbO3: Ni2+ ceramics do not only cover the whole second biological NIR region, but also present a new novel structure to approach the broadband emission spectra for TMI ions.
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