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Article Dans Une Revue MRS Communications Année : 2019

Dual light-emitting Yb 3+ ,Er 3+ -doped La(IO 3 ) 3 iodate nanocrystals: up-conversion and second harmonic generation

Résumé

We report the microwave-assisted hydrothermal synthesis of α-La(IO3)3 nanocrystals doped with Yb 3+ and Er 3+ ions, along with their structural and optical characterizations. 50-nm sized α-La0.9-xYb0.1Erx(IO3)3 nanocrystals with x = 0.005, 0.01 and 0.02 were synthesized and dispersed in ethylene glycol. The as-obtained suspensions exhibit both Second Harmonic Generation (SHG) signal and up-conversion photoluminescence (UC-PL) without interplay between the two signals under near-infrared resonant excitation. The relative intensity of SHG and UC-PL emission can be modulated according to the excitation wavelength. The most intense UC-PL signal is obtained from a 980-nm excitation, thanks to the sensitization of Er 3+ by Yb 3+. 2
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Dates et versions

hal-02324668 , version 1 (03-11-2020)

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Sylvain Regny, Kévin Bredillet, Jérémy Riporto, Isabelle Gautier-Luneau, Yannick Mugnier, et al.. Dual light-emitting Yb 3+ ,Er 3+ -doped La(IO 3 ) 3 iodate nanocrystals: up-conversion and second harmonic generation. MRS Communications, 2019, 9 (4), pp.1221-1226. ⟨10.1557/mrc.2019.137⟩. ⟨hal-02324668⟩
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