Articles with "upconversion luminescence" as a keyword



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Millisecond‐Timescale, High‐Efficiency Modulation of Upconversion Luminescence by Photochemically Derived Graphene

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Published in 2019 at "Advanced Optical Materials"

DOI: 10.1002/adom.201901345

Abstract: The millisecond‐timescale, high‐efficiency modulation of upconversion luminescence via ultraviolet laser‐induced photochemical reduction of graphene oxide is reported. The luminescence tuning is achieved by combining a thin film of graphene oxide with lanthanide‐doped upconversion nanoparticles. The… read more here.

Keywords: upconversion luminescence; modulation upconversion; upconversion; graphene ... See more keywords
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Dual‐Wavelength Responsive Broad Range Multicolor Upconversion Luminescence for High‐Capacity Photonic Barcodes

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Published in 2021 at "Advanced Optical Materials"

DOI: 10.1002/adom.202100197

Abstract: Realizing multicolor emissions of upconversion (UC) luminescence materials is of significant importance for information security and anticounterfeiting fields. Herein, a strategy is reported to achieve UC multicolor luminescence through manipulating the electronic transition process under… read more here.

Keywords: broad range; multicolor; upconversion luminescence; dual wavelength ... See more keywords
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Strategies for Constructing Upconversion Luminescence Nanoprobes to Improve Signal Contrast.

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Published in 2019 at "Small"

DOI: 10.1002/smll.201905084

Abstract: Lanthanide-doped upconversion nanoparticles (UCNPs) can convert two or more lower-energy near-infrared photons to a single photon with higher energy, which makes them particularly suitable for constructing nanoprobes with large imaging depth and minimal interference of… read more here.

Keywords: signal contrast; contrast; improve signal; strategies constructing ... See more keywords
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Utilizing Au–CuS heterodimer to intensify upconversion emission of NaGdF4:Yb/Er nanocrystals

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Published in 2020 at "Journal of Materials Science"

DOI: 10.1007/s10853-020-04512-x

Abstract: Last decade has witnessed the unique ability of localized surface plasmon resonance nanostructure to significantly enhance upconversion luminescence efficiency of lanthanide ions, which has been demonstrated in terms of either increased absorption cross section or… read more here.

Keywords: cus heterodimer; upconversion luminescence; upconversion; utilizing cus ... See more keywords
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Revisit of energy transfer upconversion luminescence dynamics—the role of energy migration

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Published in 2018 at "Science China Technological Sciences"

DOI: 10.1007/s11431-018-9311-x

Abstract: Upconversion is a process in which one photon is emitted upon absorption of several photons of lower energy. Potential applications include super resolution spectroscopy, high density data storage, anti-counterfeiting and biological imaging and photo-induced therapy.… read more here.

Keywords: energy; migration; luminescence dynamics; upconversion luminescence ... See more keywords
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Physical principle and advances in plasmon-enhanced upconversion luminescence

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Published in 2019 at "Applied Materials Today"

DOI: 10.1016/j.apmt.2018.12.015

Abstract: Abstract In this review, we introduced the principle and advances in plasmon-enhanced upconversion luminescence. Firstly, we focus on the physical mechanism and principle of plasmon-enhanced upconversion luminescence, based on quantum electrodynamics. Secondly, we introduce in… read more here.

Keywords: plasmon enhanced; upconversion luminescence; advances plasmon; luminescence ... See more keywords
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Electrochromism induced reversible upconversion luminescence modulation of WO3:Yb3+, Er3+ inverse opals for optical storage application

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Published in 2020 at "Chemical Engineering Journal"

DOI: 10.1016/j.cej.2020.124967

Abstract: Abstract Reversible modulated upconversion luminescence exhibits an application potential as the photo-switch, fingerprint acquisition, anti-counterfeiting and optical storage devices. It is found that the photochromism and thermochromism could be applied to modify the upconversion luminescence.… read more here.

Keywords: er3 inverse; luminescence; wo3 yb3; upconversion luminescence ... See more keywords
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Fabrication and upconversion luminescence properties of Er:SrF2 transparent ceramics compared with Er:CaF2

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Published in 2021 at "Ceramics International"

DOI: 10.1016/j.ceramint.2021.03.023

Abstract: Abstract SrF2 transparent ceramic is a promising upconversion material due to the low phonon energy. The effect of different sintering temperatures on Er:SrF2 transparent ceramics was investigated. The suitable sintering temperature for Er:SrF2 transparent ceramics… read more here.

Keywords: upconversion luminescence; transparent ceramics; srf2 transparent;
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Rational Design and Synthesis of Upconversion Luminescence-based Optomagnetic Multifunctional Nanorattles for Drug Delivery

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Published in 2021 at "Chinese Journal of Chemical Engineering"

DOI: 10.1016/j.cjche.2021.05.021

Abstract: Abstract Optomagnetic multifunctional composite based on upconversion luminescence nanomaterial is regarded as a promising strategy for bioimaging, disease diagnosis and targeted delivery of drugs. To explore a mesoporous nanostructure with excellent water dispersibility and high… read more here.

Keywords: drug; upconversion luminescence; release; delivery ... See more keywords
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Modulated single band red upconversion luminescence from Ho3+ doped nanoparticles with two-wavelength excitation

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Published in 2017 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2017.08.214

Abstract: Abstract Single band red upconversion luminescence has the potential applications from science to engineering, however, suffered from low luminescence efficiency. Single band enhanced red upconversion luminescence from NaYF 4 : Ho nanoparticles has been realized… read more here.

Keywords: single band; wavelength excitation; luminescence; red upconversion ... See more keywords
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Fabrication of Er/Tm/Yb/Y2O3 upconversion luminescence enhanced 3C-SiC composites as highly UV–Vis–NIR light responsive photocatalysts

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Published in 2018 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2017.09.332

Abstract: Abstract New UV–Vis–NIR light responsive Er/Tm/Yb/Y 2 O 3 -SiC composites are designed by coupling different structured Er/Tm/Yb/Y 2 O 3 upconversion luminescence materials (UCLMs) with 3C-SiC ultrafine nanocrystals (NCs) and explored as an efficient… read more here.

Keywords: vis nir; nir light; luminescence; sic composites ... See more keywords