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NIR‐to‐NIR Two‐Photon Scanning Laser Microscopy Imaging of Single Nanoparticles Doped by Yb III Complexes
Author(s) -
Bourdolle Adrien,
D'Aléo Anthony,
Philippot Cécile,
Baldeck Patrice L.,
Guyot Yannick,
Dubois Fabien,
Ibanez Alain,
Andraud Chantal,
Brasselet Sophie,
Maury Olivier
Publication year - 2016
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201500814
Subject(s) - nanoparticle , microscopy , materials science , laser , doping , two photon excitation microscopy , optics , analytical chemistry (journal) , optoelectronics , chemistry , nanotechnology , physics , fluorescence , chromatography
The photophysical and nonlinear optical properties of water‐soluble chromophore‐functionalised tris‐dipicolinate complexes [LnL 3 ] 3− (Ln=Yb and Nd) are thoroughly studied, revealing that only the Yb III luminescence can be sensitized by a two‐photon excitation process. The stability of the complex in water is strongly enhanced by embedding in dispersible organosilicate nanoparticles (NPs). Finally, the spectroscopic properties of [NBu 4 ] 3 [YbL 3 ] are studied in solution and in the solid state. The high brightness of the NPs allows imaging them as single objects using a modified two‐photon microscopy setup in a NIR‐to‐NIR configuration.