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Issue 12, 2016
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Nonlinear spectral and lifetime management in upconversion nanoparticles by controlling energy distribution

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Abstract

Optical tuning of lanthanide-doped upconversion nanoparticles has attracted considerable attention over the past decade because this development allows the advance of new frontiers in energy conversion, materials science, and biological imaging. Here we present a rational approach to manipulating the spectral profile and lifetime of lanthanide emission in upconversion nanoparticles by tailoring their nonlinear optical properties. We demonstrate that the incorporation of energy distributors, such as surface defects or an extra amount of dopants, into a rare-earth-based host lattice alters the decay behavior of excited sensitizers, thus markedly improving the emitters’ sensitivity to excitation power. This work provides insight into mechanistic understanding of upconversion phenomena in nanoparticles and also enables exciting new opportunities of using these nanomaterials for photonic applications.

Graphical abstract: Nonlinear spectral and lifetime management in upconversion nanoparticles by controlling energy distribution

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Supplementary files

Article information


Submitted
29 Jan 2016
Accepted
24 Feb 2016
First published
25 Feb 2016

This article is Open Access

Nanoscale, 2016,8, 6666-6673
Article type
Paper

Nonlinear spectral and lifetime management in upconversion nanoparticles by controlling energy distribution

Y. Wang, R. Deng, X. Xie, L. Huang and X. Liu, Nanoscale, 2016, 8, 6666
DOI: 10.1039/C6NR00812G

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    [Original citation] - Published by The Royal Society of Chemistry.

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