Work

Plasmonic Modulation of the Upconversion Fluorescence in NaYF4:Yb/Tm Hexaplate Nanocrystals Using Gold Nanoparticles or Nanoshells

Year: 2010

Type: article

Abstract: 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).

Source: Angewandte Chemie International Edition

DOI: 10.1002/anie.200905805

Authors: Hua Zhang, Yujing Li, Ivan A. Ivanov, Yongquan Qu, Yu Huang, Xiangfeng Duan

Institutions: University of California, Los Angeles, California NanoSystems Institute

Language: English

Topic: Luminescence Properties of Advanced Materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funders: National Institutes of Health, U.S. Public Health Service

Awards: G6952614038, Integrated Free-standing Nanoprobes for Neuroscience and Beyond