Abstract
A general approach to fine-tuning the upconversion emission colors, based upon a single host source of NaYF4 nanoparticles doped with Yb3+, Tm3+, and Er3+, is presented. The emission intensity balance can be precisely controlled using different host-activator systems and dopant concentrations. The approach allows access to a wide range of luminescence emission from visible to near-infrared by single-wavelength excitation.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Erbium / chemistry
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Fluorescent Dyes / chemistry*
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Fluorides / chemistry*
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Lanthanoid Series Elements / chemistry*
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Microscopy, Electron, Transmission / methods
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Nanoparticles / chemistry*
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Nanoparticles / ultrastructure
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Spectrophotometry, Infrared / methods*
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Thulium / chemistry
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Ytterbium / chemistry
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Yttrium / chemistry*
Substances
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Fluorescent Dyes
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Lanthanoid Series Elements
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sodium yttriumtetrafluoride
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Yttrium
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Erbium
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Thulium
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Ytterbium
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Fluorides