1. Dual light-emitting Yb 3+ ,Er 3+ -doped La(IO 3 ) 3 iodate nanocrystals: up-conversion and second harmonic generation
- Author
-
Kévin Bredillet, Ronan Le Dantec, Yannick Mugnier, Isabelle Gautier-Luneau, Jérémy Riporto, Sylvain Regny, Géraldine Dantelle, Optique et Matériaux (OPTIMA ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire SYstèmes et Matériaux pour la MEcatronique (SYMME), and Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])
- Subjects
Materials science ,Photoluminescence ,02 engineering and technology ,up-conversion ,010402 general chemistry ,7. Clean energy ,01 natural sciences ,Ion ,chemistry.chemical_compound ,nanocrystals ,Hydrothermal synthesis ,General Materials Science ,Iodate ,business.industry ,Doping ,Second-harmonic generation ,iodate compounds ,[CHIM.MATE]Chemical Sciences/Material chemistry ,021001 nanoscience & nanotechnology ,0104 chemical sciences ,chemistry ,second harmonic generation (SHG) ,Optoelectronics ,photoluminescence ,0210 nano-technology ,business ,Ethylene glycol ,Excitation - Abstract
International audience; 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
- Published
- 2019
- Full Text
- View/download PDF