Title of article
Modification of Ag shell on upconversion populating paths of NaYF4:Yb3+,Er3+@Ag nanocomposites
Author/Authors
Jiao Sun، نويسنده , , Haipeng Liu، نويسنده , , Di Wu، نويسنده , , Biao Dong، نويسنده , , Liankun Sun، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2013
Pages
4
From page
1021
To page
1024
Abstract
NaYF4:Yb3+,Er3+@Ag core–shell nanocomposites were prepared. Due to the outer shell of Ag, some modifications were found on the upconversion (UC) processes of NaYF4:Yb3+,Er3+ core nanoparticles (NPs) caused by the co-interaction of surface effect, surface plasma absorption effect and local thermal effect under infrared radiation. Upon 980 nm excitation, the relative UC intensity of the green (2H11/2, 4S3/2–4I15/2) to red (4F9/2–4I15/2) and the slope of power-dependence increased intensively, and three-photon population process for the green level appeared.
Keywords
Nanostructures , Chemical synthesis , Coatings , Optical properties
Journal title
Materials Chemistry and Physics
Serial Year
2013
Journal title
Materials Chemistry and Physics
Record number
1059792
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