Plasmonic enhancement and polarization dependence of nonlinear upconversion emissions from single gold nanorod@SiO2 @CaF2 :Yb3+ ,Er3+ hybrid core-shell-satellite nanostructures

Light, Science & Applications
Jijun HeDang Yuan Lei

Abstract

Lanthanide-doped upconversion nanocrystals (UCNCs) have recently become an attractive nonlinear fluorescence material for use in bioimaging because of their tunable spectral characteristics and exceptional photostability. Plasmonic materials are often introduced into the vicinity of UCNCs to increase their emission intensity by means of enlarging the absorption cross-section and accelerating the radiative decay rate. Moreover, plasmonic nanostructures (e.g., gold nanorods, GNRs) can also influence the polarization state of the UC fluorescence-an effect that is of fundamental importance for fluorescence polarization-based imaging methods yet has not been discussed previously. To study this effect, we synthesized GNR@SiO2@CaF2:Yb3+,Er3+ hybrid core-shell-satellite nanostructures with precise control over the thickness of the SiO2 shell. We evaluated the shell thickness-dependent plasmonic enhancement of the emission intensity in ensemble and studied the plasmonic modulation of the emission polarization at the single-particle level. The hybrid plasmonic UC nanostructures with an optimal shell thickness exhibit an improved bioimaging performance compared with bare UCNCs, and we observed a polarized nature of the light at both UC em...Continue Reading

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Citations

Mar 7, 2019·Nanoscale·Jan BergstrandHaichun Liu
Jun 28, 2019·Advanced Materials·Mariola O RamírezLuisa E Bausá
Nov 30, 2019·Small·Zhongzheng YuTimothy Thatt Yang Tan
Mar 29, 2019·Nature Communications·Liangliang LiangXiaogang Liu
Aug 20, 2020·Nanoscale·Artiom SkripkaFiorenzo Vetrone
Nov 12, 2019·Frontiers in Chemistry·Yiqing ShuJianqing Li
Sep 29, 2018·Materials·Jianxun LiuYanjun Liu
Jan 20, 2021·Nanoscale Horizons : the Home for Rapid Reports of Exceptional Significance in Nanoscience and Nanotechnolgy·Riccardo MarinAntonio Benayas
Feb 4, 2021·The Journal of Physical Chemistry Letters·Xian QinXiaogang Liu
May 11, 2021·Frontiers in Pharmacology·Shengnan LiaoJinfeng Liao
May 21, 2021·Light, Science & Applications·Yansong FengHong Zhang
Dec 17, 2019·ACS Nano·Yun-Hang QiuQu-Quan Wang
Dec 11, 2019·ACS Applied Materials & Interfaces·Anshi ChuYan Jun Liu
Jun 30, 2019·ACS Applied Materials & Interfaces·Jing S PangFang Xie
Sep 28, 2021·Chemical Reviews·Jiapeng ZhengJianfang Wang
Jan 7, 2022·Chemical Reviews·Bingzhu ZhengXiaogang Liu

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Methods Mentioned

BETA
Fluorescence
FRET
electron-beam lithography
one hybrid

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