Imperial College London
Alternate

ProfessorSandrineHeutz

Faculty of Engineering, Department of Materials

Head of the Department of Materials
 
 
 
//

Contact

 

+44 (0)20 7594 6727s.heutz

 
 
//

Location

 

201.BRoyal School of MinesSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Xu:2023:10.1002/adom.202300477,
author = {Xu, J and Fu, M and Ji, C and Centeno, A and Kim, DK and Evers, K and Heutz, SEM and Oulton, R and Ryan, MP and Xie, F},
doi = {10.1002/adom.202300477},
journal = {Advanced Optical Materials},
title = {Plasmonicenhanced NIRII downconversion fluorescence beyond 1500 nm from core–shell–shell lanthanide nanoparticles},
url = {http://dx.doi.org/10.1002/adom.202300477},
volume = {11},
year = {2023}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This paper reports on the light amplification of NaGdF4:Yb,Er,Ce@NaGdF4:Yb,Nd@NaGdF4 core–shell–shell downconversion nanoparticles (CSS-DCNPs) in the near-infrared second biological window (NIR-II: 1000–1700 nm) by plasmonic nanostructures. Through a precisely controlled plasmonic metallic nanostructure, fluorescence from Yb3+ induced 1000 nm emission, Nd3+ induced 1060 nm emission, and Er3+ induced 1527 nm emission are enhanced 1.6-fold, 1.7-fold, and 2.2-fold, respectively, under an 808 nm laser excitation for the CSS-DCNPs coupled with a gold hole-cap nanoarray (Au-HCNA), while the Er3+ induced 1527 nm emission under a 980 nm laser excitation is enhanced up to 6-fold. To gain insight into the enhancement mechanism, the plasmonic modulation of Er3+ induced NIR-II emission at 1550 nm under 980 nm excitation is studied by FDTD simulation and lifetime measurements, showing the observed fluorescence enhancement can be attributed to a combination of enhanced excitation and an increased radiative decay rate.
AU  - Xu,J
AU  - Fu,M
AU  - Ji,C
AU  - Centeno,A
AU  - Kim,DK
AU  - Evers,K
AU  - Heutz,SEM
AU  - Oulton,R
AU  - Ryan,MP
AU  - Xie,F
DO  - 10.1002/adom.202300477
PY  - 2023///
SN  - 2195-1071
TI  - Plasmonicenhanced NIRII downconversion fluorescence beyond 1500 nm from core–shell–shell lanthanide nanoparticles
T2  - Advanced Optical Materials
UR  - http://dx.doi.org/10.1002/adom.202300477
UR  - http://hdl.handle.net/10044/1/105107
VL  - 11
ER  -
Download