Highly Enhanced Cooperative Upconversion Luminescence through Energy Transfer Optimization and Quenching Protection

2016 ◽  
Vol 8 (28) ◽  
pp. 17894-17901 ◽  
Author(s):  
Meng Xue ◽  
Xingjun Zhu ◽  
Xiaochen Qiu ◽  
Yuyang Gu ◽  
Wei Feng ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Upconversion Luminescence ◽  
Cooperative Upconversion

scholarly journals Upconversion Luminescence of Silica–Calcia Nanoparticles Co-doped with Tm3+ and Yb3+ Ions

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 937
Author(s):  
Katarzyna Halubek-Gluchowska ◽  
Damian Szymański ◽  
Thi Ngoc Lam Tran ◽  
Maurizio Ferrari ◽  
Anna Lukowiak
Keyword(s):  
Energy Transfer ◽  
Near Infrared ◽  
Upconversion Luminescence ◽  
Sol Gel ◽  
Emission Spectra ◽  
Transmission Electron ◽  
Characteristic Emission ◽  
Diffraction Patterns ◽  
Size Of Particles ◽  
Average Size

Looking for upconverting biocompatible nanoparticles, we have prepared by the sol–gel method, silica–calcia glass nanopowders doped with different concentration of Tm3+ and Yb3+ ions (Tm3+ from 0.15 mol% up to 0.5 mol% and Yb3+ from 1 mol% up to 4 mol%) and characterized their structure, morphology, and optical properties. X-ray diffraction patterns indicated an amorphous phase of the silica-based glass with partial crystallization of samples with a higher content of lanthanides ions. Transmission electron microscopy images showed that the average size of particles decreased with increasing lanthanides content. The upconversion (UC) emission spectra and fluorescence lifetimes were registered under near infrared excitation (980 nm) at room temperature to study the energy transfer between Yb3+ and Tm3+ at various active ions concentrations. Characteristic emission bands of Tm3+ ions in the range of 350 nm to 850 nm were observed. To understand the mechanism of Yb3+–Tm3+ UC energy transfer in the SiO2–CaO powders, the kinetics of luminescence decays were studied.

Magnetic field modulated upconversion luminescence in NaYF4:Yb,Er nanoparticles

2015 ◽  
Vol 3 (34) ◽  
pp. 8794-8798 ◽  
Author(s):  
P. Chen ◽  
H. Jia ◽  
Z. Zhong ◽  
J. Han ◽  
Q. Guo ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Energy Transfer ◽  
Upconversion Luminescence

Magnetic field enhanced the upconversion luminescence for the enhanced energy transfer from Yb3+ to Er3+ in NaYF4 nanoparticles.

Upconversion luminescence, optical thermometric properties and energy transfer in Yb3+/Tm3+ co-doped phosphate glass

2018 ◽  
Vol 81 ◽  
pp. 78-83 ◽  
Author(s):  
Yong Chen ◽  
Guohua Chen ◽  
Xiangyu Liu ◽  
Jiwen Xu ◽  
Xiujuan Zhou ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Phosphate Glass ◽  
Upconversion Luminescence ◽  
Co Doped

A paper-supported sandwich immunosensor based on upconversion luminescence resonance energy transfer for the visual and quantitative determination of a cancer biomarker in human serum

The Analyst ◽  
2020 ◽  
Vol 145 (12) ◽  
pp. 4181-4187 ◽  
Author(s):  
Mengyuan He ◽  
Ning Shang ◽  
Lin Shen ◽  
Zhihong Liu
Keyword(s):  
Energy Transfer ◽  
Quantitative Determination ◽  
Human Serum ◽  
Upconversion Luminescence ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Cancer Biomarker

A portable and sensitive paper-supported sandwich immunosensor based on UC-FRET was developed for the visual and quantitative determination of CEA.

Red–green–blue upconversion luminescence and energy transfer in Yb3+/Er3+/Tm3+ doped YP5O14 ultraphosphates

2017 ◽  
Vol 181 ◽  
pp. 393-399 ◽  
Author(s):  
M.A. Hassairi ◽  
M. Dammak ◽  
D. Zambon ◽  
G. Chadeyron ◽  
R. Mahiou
Keyword(s):  
Energy Transfer ◽  
Upconversion Luminescence

Comparative investigation of the optical spectroscopic and thermal effect in Nd3+-doped nanoparticles

Nanoscale ◽  
2019 ◽  
Vol 11 (21) ◽  
pp. 10220-10228 ◽  
Author(s):  
Shuai Wang ◽  
Bin Shen ◽  
Han-Lin Wei ◽  
Zixiao Liu ◽  
Zhigang Chen ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Thermal Effect ◽  
Upconversion Luminescence ◽  
Comparative Investigation ◽  
Transfer Mechanism ◽  
Energy Transfer Mechanism ◽  
Factors Influencing

The factors influencing upconversion luminescence, the energy transfer mechanism and their thermal effect in Nd3+-doped nanoparticles were comprehensively investigated.

The Effect of Phase Structures on the Enhanced Red Upconversion Luminescence in NaLuF4:Yb–Er Nanocrystals

2016 ◽  
Vol 16 (4) ◽  
pp. 3965-3968
Author(s):  
Xingyuan Guo ◽  
Weiye Song ◽  
Xueqing Bi ◽  
Shushen Liu ◽  
Shengyan Yin ◽  
...  
Keyword(s):  
Energy Transfer ◽  
High Temperature ◽  
Laser Diode ◽  
Upconversion Luminescence ◽  
Decomposition Reaction ◽  
Energy Transfer Mechanism ◽  
Reaction Method ◽  
Phase Structures ◽  
Temperature Decomposition ◽  
Luminescence Performance

In this work, -NaLuF4:Yb, Er (NLF) nanocomposites (NCs) and -NLF NCs with diameter about ∼13 nm were fabricated by a high temperature decomposition reaction method. The effects of NLF structure on the enhanced red upconversion luminescence performance were investigated. Under 980 nm excitation from a laser diode, the -NLF emitted dominant red UC emission. Furthermore, the possible energy transfer mechanism was proposed on the basis of our experimental results.

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