rare earth doped


Rare-earth doped CaF2 nanocrystals for dual-modal short ...

T1 - Rare-earth doped CaF2 nanocrystals for dual-modal short-wavelength infrared fluorescence and photoacoustic imaging. AU - Zhao, Xinyu. AU - Sheng, Yang. AU - Liao, Lun De. AU - Thakor, Nitish. AU - Tan, Mei Chee

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Expanding the synthetic toolbox to access pristine and ...

A new synthetic route to access pristine and rare-earth-doped BaFBr nanocrystals is described. Central to this route is an organic–inorganic hybrid precursor of formula Ba 5 (CF 2 BrCOO) 10 (H 2 O) 7 that serves as a dual-halogen source. Thermolysis of this precursor in a mixture of high-boiling point organic solvents yields spherical BaFBr nanocrystals (≈20 nm in diameter).

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Prospects for rare earth doped GaN lasers on Si ...

Emission wavelengths from selected transitions in rare earth ions and associated bandgap energies of alloys of III-N compound semiconductors. In this review, we provide a summary of our efforts to develop a laser-on-Si using RE-doped GaN heteroepitaxially grown on Si substrates.

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US20120068592A1 - Rare earth doped luminescent …

A luminescent material includes an aluminate phosphor of formula I A1+xMg1+yAl10+zO17+x+y+1.5z:Eu2+, R3+, where 0≰x≰0.4, 0≰y≰1 and 0≰z≰0.2. A is selected from Ca, Ba, and Sr and combinations thereof. The aluminate phosphor is doped with a rare earth ion (R3+), which exists in stable multi-valence states in the luminescent material.

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Concentration quenching effect in rare-earth doped glasses

Four rare-earth ion doped glasses are studied in this thesis, which are Ytterbium(Yb), Neodymium(Nd), Thulium(Tm) and Praseodymium(Pr). The ytterbium is attrac-tive for it's application in all solid-state diode pumped lasers emitting at 1µm due to its clean energy level and low thermal loading[6]. Neodymium is …

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Rare-earth-doped fiber designs for superluminescent …

Abstract. The use of rare-earth-doped fiber section working in amplified spontaneous emission regime for different emission wavelengths is ana-lyzed theoretically. From simulation results, the design of all-fiber super-luminescent sources employing different rare earths as dopants for new optical windows and different applications is proposed.

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Rare‐Earth Ion Doped Up‐Conversion Materials for ...

The development of up‐conversion (UC)materials, that is, phosphors doped with rare‐earth (RE) ions, is reviewed, in particular recent progress for solar cell applications New trends in RE‐ion‐doped p...

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Rare-Earth-Doped Materials with Application to Optical ...

Rare-earth-doped materials with application to optical signal processing, quant um information science, and medical imaging technology R. L. Cone, *a C. W. Thiel, a ...

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Rare Earth Doped Silica Optical Fibre Sensors for ...

Rare Earth Doped Silica Optical Fibre Sensors for Dosimetry in Medical and Technical Applications N. Chiodini, 1 A. Vedda, 1 and I. Veronese 2 1 Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, Via Cozzi 55, 20125 Milano, Italy

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Rare Earth Doped Fibers - Fiber Optic Center

Believe it or not, rare earth doped optical fiber has been around for about 60 years. Eli Snitzer was the first to report on laser action in a neodymium doped silicate glass fiber emitting at 1.06 µm back in 1961 [1].This was the first demonstration of laser action of a rare earth in a silicate glass host, as well as in the form of an optical fiber.

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Application of rare earth-doped nanoparticles in ...

Rare earth-doped nanoparticles have been widely used in disease diagnosis, drug delivery, tumor therapy, and bioimaging. Among various bioimaging methods, the fluorescence imaging technology based on the rare earth-doped nanoparticles can visually display the cell activity and lesion evolution in living animals, which is a powerful tool in biological technology and has being widely applied in ...

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Research Progress in Rare Earth-Doped Perovskite Manganite ...

Rare Earth-Doped Perovskite Manganite Oxide Nanoparticles Molten Salt Synthesis. Molten salt synthesis (MSS) method is a simple, versatile, and environmental-friendly approach, which is widely used to synthesize high purity and nanoscale inorganic oxides …

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Rare earth doped M-type hexaferrites; ferromagnetic ...

The rare earth (Nd and Sm) doped M-type hexaferrite were successfully synthesized using the hydrothermal method. XRD and VSM results show the crystallization of the ferrite without any deviation from the hexagonal phase after substitution of the dopants ions.

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Rare earth element-doped porous In2O3 nanosheets for ...

Abstract. Rare earth (La, Pr, Sm, Ce and Yb)-doped porous In 2 O 3 nanosheets are prepared by a solvothermal method. The effect of rare earth elements on the structure, morphologies and gas-sensing performance of In 2 O 3 nanosheets is systematically investigated. The mixed phase composed of c-In 2 O 3 and rh-In 2 O 3 can be transformed into rh-In 2 O 3 by doping with rare earth …

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Rare-earth-doped materials for applications in quantum ...

In rare-earth-doped materials, two major broadening mechanisms influence the observed optical spectra: homogeneous broadening and inhomogeneous broadening. Inhomogeneous broadening is generally regarded as a static effect due to local strains in the crystal caused by crystal growth, impurities, dislocations, or other lattice imperfections, such ...

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Rare-earth ion doped TeO2 and GeO2 glasses as laser ...

This review compares the materials and spectroscopic properties of rare-earth doped germanium oxide (GeO 2) and tellurium oxide (TeO 2) based glasses and devices, in comparison to the spectroscopic performance of traditional silicate, borate and phosphate materials by presenting data on the solubility of rare-earth ions, oscillator strength ...

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(PDF) Structure and electrical activity of rare-earth ...

Families of rare-earth related donors through the RENiBEl (Rare-earths doped Nitrides for high have been found from Hall effect studies and are associated Brightness Electroluminescence emitters) network (Con- with levels around Ec—0.07 eV [44]. These studies demon- tract HPRN-CT-2001-00297). strate the shallow donor nature of Er–O defects.

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Research progress and prospects of rare-earth doped ...

Conclusion and prospects. In summary, sesquioxide ceramics doped with rare-earth ions have been proved to be very promising solid-state laser materials. Reports on active ions doped Sc 2 O 3 are less than Y 2 O 3 and Lu 2 O 3, and the optical quality of Sc 2 O 3 -based ceramics is slightly inferior. As for the mixed ceramics, the power and ...

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Morphological Evolution and Magnetic Property of Rare ...

A series of uniform rare-earth-doped hematite (α-Fe 2 O 3) nanoparticles are synthesized by a facile hydrothermal strategy.In a typical case of gadolinium (Gd)-doped α-Fe 2 O 3, the morphology and chemical composition can be readily tailored by tuning the initial proportion of Gd 3+ /Fe 3+ sources. As a result, the products are observed to be stretched into more elongated shapes with an ...

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Characterization of Rare Earth Doped III-V Thermoelectric ...

Characterization of Rare Earth Doped III-V Thermoelectric Materials Vishaal Varahamurthy Ryan Need, B.S. Christopher Palmstrøm, PhD UCSB Materials Department EUREKA 08/28/2013. Energy: we lose more than we use Original Image produced by Lawrence Livermore National Laboratory.

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Rare earth doped | Sigma-Aldrich

Compare. Keyword: 'Rare earth doped'. Rare earth doped phosphor nanoparticles. Rare earth doped phosphor nanoparticles. Product Number. Product Description. SDS. 900591. fluorescence λem 580 nm (main peak), 50 mg/mL in H2O.

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Rare earth doped CaCu3Ti4O12 electronic ceramics for high ...

MU Chunhong et al., Rare earth doped CaCu 3 Ti 4 O 12 electronic ceramics for high frequency applications 47 [14] Mu C H, Liu P, He Y, Zhou J P, Zhang H W. An effective method to decrease dielectric loss of CaCu 3 Ti 4 O 12 ceramics. Journal of Alloys and Compounds, 2009, 471: 137. [15] Krohns S, Lunkenheimer P, Ebbinghaus S G, Loidl A. Colos ...

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Frontiers | Review of Research on the Rare-Earth Doped ...

One the other hand, the rare-earth doped piezoelectric materials can get characteristic emission spectrum after being excited due to the ladder-shaped 4f energy level of rare-earth ions . Under the excited of 300–500 nm, some sharp down-conversion emissions can be achieved in the rare-earth doped materials.

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(PDF) Journal Pre-proof Evaluation of structural ...

PDF | In this study, the micro-emulsion approach was adopted to fabricate rare earth (Nd) and transition metal (Cu) co-doped barium hexaferrite... | Find, read and cite all the research you need ...

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Rare earth-doped glass microbarcodes | PNAS

Rare earth-doped glasses were chosen because of their narrow emission bands, high quantum efficiencies, noninterference with common fluorescent labels, and inertness to most organic and aqueous solvents. These properties and the large number (>1 million) of possible combinations of these microbarcodes make them attractive for use in multiplexed ...

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Narrow optical homogeneous linewidths in rare earth doped ...

Narrow optical homogeneous linewidths in rare earth doped nanocrystals Phys Rev Lett. 2013 Nov 15;111(20):203601. doi: 10.1103/PhysRevLett.111.203601. Epub 2013 Nov 12. Authors A Perrot 1, Ph Goldner, D Giaume, M Lovri ć, C Andriamiadamanana, R R Gonçalves, A ...

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US5706124A - Rare earth element-doped optical fiber ...

doped wavelength signal light rare earth Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US08/629,593 Inventor

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Rare Earth Ion‐Doped CsPbBr3 Nanocrystals - Hu - 2018 ...

Rare earth ions Eu 3+ and Tb 3+ are doped into CsPbBr 3 nanocrystals (NCs) for the first time, utilizing a one-pot ultrasonication method. As-synthesized NCs exhibit dual emissions from NCs and rare earth ions, further strengthening the competitiveness of perovskite NCs for lighting application.

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Rare Earth Doped Lutetium Fluoride Lithium On Conversion ...

Rare earth doped lutetium fluoride lithium on conversion nanomaterials. Its characteristic lies in: with oil Acid, oleylamine and octadecene as solvents were combined with lithium trifluoroacetate, lutetium trifluoroacetate and rare earth trifluoroacetate in an inert gas Under the protection, the temperature is heated to 100-130℃ and held for ...

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A mini-review on rare earth metal-doped TiO2 for ...

The rare earth metal-doped TiO 2 photocatalyst were applied for the decomposition of NO 2 − and were found more effective than pure TiO 2. Among all these rare earth metal dopants, Gd 3+ doping were found most effective and were consistent with the increase in interfacial electron exchange rates (Xu et al. 2002).

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High Affinity to Skeleton Rare Earth Doped Nanoparticles ...

Here, we report an NIR-II fluorophore based on DSPE-mPEG encapsulated rare earth doped nanoparticles ([email protected]), which shows inherent affinity to bone without linking any targeting ligands, and thus, it provides an alternative noninvasive and nonradiation strategy for skeletal system mapping and bone disease diagnoses.

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Rare Earth Doped Yttrium Aluminum Garnet (YAG) Selective ...

as rare earth doped YAG, these distances are greater than 100 _m. Since rare earth doped YAG also has low thermal conductivity (0.01 W/cm K) this means that significant temperature changes can occur even for small distances. As a result, since thermal radiation is a sensitive function of temperature the spectral emittance is also sensitive to the

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Novel rare earth (RE-La, Er, Sm) metal doped ZnO ...

Synthesis and characterization of novel ZnO:RE nanostructured materials doped with 1% rare-earth elements (RE = La, Er, Sm) and their testing for photocatalytic applications were reported. The materials were obtained via electrospining, followed by calcination at 700 ° C. The samples were …

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