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Lanthanide Nanocrystals: Colloidal Tm 3+ /Yb 3+ ‐Doped LiYF 4 Nanocrystals: Multiple Luminescence Spanning the UV to NIR Regions via Low‐Energy Excitation (Adv. Mater. 40/2009)
Author(s) -
Mahalingam Venkataramanan,
Vetrone Fiorenzo,
Naccache Rafik,
Speghini Adolfo,
Capobianco John A.
Publication year - 2009
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200990149
Subject(s) - ytterbium , materials science , photon upconversion , nanocrystal , thulium , luminescence , doping , excitation , lanthanide , ion , nanoparticle , optoelectronics , nanotechnology , physics , quantum mechanics
LiYF 4 nanoparticles co‐doped with thulium and ytterbium ions show multiple emissions in the region covering the ultraviolet to the near‐infrared following excitation with low‐energy radiation via a multiphoton process known as upconversion, in work reported by John Capobianco and co‐workers on p. 4025 . These versatile diamond‐shaped nanoparticles have been identified as candidates for potential integration in various applications including cell labeling and imaging, solution‐based fast scintillation, as well as anti‐counterfeiting.