Plasmonic Modulation of the Upconversion Fluorescence in NaYF 4 :Yb/Tm Hexaplate Nanocrystals Using Gold Nanoparticles or Nanoshells | Zendy

Zhang Hua | Zendy; Li Yujing | Zendy; Ivanov Ivan A. | Zendy; Qu Yongquan | Zendy; Huang Yu | Zendy; Duan Xiangfeng | Zendy

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Plasmonic Modulation of the Upconversion Fluorescence in NaYF 4 :Yb/Tm Hexaplate Nanocrystals Using Gold Nanoparticles or Nanoshells

Author(s) -

Zhang Hua,

Li Yujing,

Ivanov Ivan A.,

Qu Yongquan,

Huang Yu,

Duan Xiangfeng

Publication year - 2010

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200905805

Subject(s) - computer science , artificial intelligence , materials science , library science

Automatic upgrade : Attachment of gold nanoparticles (NPs) onto upconversion nanocrystals (NCs) results in plasmonic interactions that lead to a significant enhancement of upconversion emission of more than 2.5. Conversely, formation of a gold shell greatly suppresses the NC emission because of considerable scattering of excitation irradiation (see picture; a=NC before seed attachment; b, c=NC with attached Au NPs; c=NC with Au shell; scale bar=50 nm).

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