Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
88
datasets available to search
ShareScore release 0.7.1
Dataset results
88 results for “Luminescence”
Luminescent polyvinylalcohol film containing carbon-dots produced by laser ablation in biocompatible liquid
<p>Images of the final polymeric foils containing carbon Dots. Sketche of the adopted set up for the characterization of the produced Carbon Dots (CDs). Data of the spectra stored during luminescence, optical and FTIR analyses. Images from AFM analysis.</p>
Optically Stimulated Luminescence data from archaeological site Uzès (Gard, France)
<p>This dataset includes data from OSL dating of two samples from the archaeological site of Uzès (Gard, France) performed at IRAMAT-CRP2A (UMR5060, Université Bordeaux Montaigne, CNRS, Pessac France) for Philippe Cayn (INRAP).</p>
Optically Stimulated Luminescence data from archaeological site Brive-la-Gaillarde (France)
<p>This dataset includes data from OSL dating of 11 samples from the archaeological site of Brive-la-Gaillarde (France) performed at IRAMAT-CRP2A (UMR5060, Université Bordeaux Montaigne, CNRS, Pessac France) for Paleotime.</p>
Structurally induced tuning of the relative sensitivity of LaScO3:Cr3+ luminescent thermometers by co-doping lanthanide ions
<p>Ratiometric luminescence thermometry for remote temperature sensing has been constantly gaining an increasing popularity due to its simplicity with yet high precision. Transition metal ions still have an underestimated potential in that area as their luminescence properties can be tuned by targeted modification of the host compound. In this work, we demonstrate that concept in the phosphor LaScO<sub>3</sub>:Cr<sup>3+</sup> by co-doping with various lanthanide ions that partially substitute the La<sup>3+</sup> ions of the host. It is demonstrated that the incorporated lanthanide ions affect the bond lengths of the [CrO<sub>6</sub>]<sup>9-</sup> octahedra in the structure and thus, have a subtle impact on the local crystal field around the Cr<sup>3+</sup> ions. The changes in the crystal field strength lead to a variation in the energy gap between the thermally coupled <sup>2</sup>E<sub>(</sub><em><sub>g</sub></em><sub>)</sub> and <sup>4</sup>T<sub>2(</sub><em><sub>g</sub></em><sub>)</sub> states of Cr<sup>3+</sup>, which affects the thermal quenching behavior of the related 3d<sup>3</sup>-3d<sup>3</sup> luminescence. This has an immediate consequence for the potential future use of Cr<sup>3+</sup> together with lanthanide ions in a ratiometric luminescence thermometry and allows to selectively tune the performance of this structurally sensitive ion.</p>
Spectral and thermometric properties altering through crystal field strength modification and host material composition in luminescent thermometers based on Fe3+ doped AB2O4 type nanocrystals (A= Mg, Ca; B=Al, Ga)
<p>The growing interest in the use of luminescence thermometry for noncontact temperature reading in very specific conditions imposes the need to develop an approach allowing modification of the luminescence parameters of the thermometer accordingly to the requirements. Therefore, in response to these expectations, this manuscript reports an approach to modulating the spectral position and the luminescence thermal quenching rate of Fe<sup>3+</sup> ions by modifying the crystal field strength and the host material composition of nanocrystalline AB<sub>2</sub>O<sub>4</sub> type nanocrystals (A= Mg, Ca; B=Al, Ga). It was proved that in a group of MgAl<sub>2</sub>O<sub>4</sub>, MgGa<sub>2</sub>O<sub>4</sub>, CaAl<sub>2</sub>O<sub>4</sub>, and CaGa<sub>2</sub>O<sub>4</sub> nanocrystals doped with Fe<sup>3+</sup> ions the emission spectral range, as well as the relative thermal sensitivity (from 0.2%/<sup>o</sup>C for MAO to 2.07%/<sup>o</sup>C for CGO) and the operating temperature range, can be easily modified by the host material composition. For instance, a maximal relative thermal sensitivity of 2.58%/<sup>o</sup>C is obtained for Fe<sup>3+</sup>, Tb<sup>3+</sup> co-doped CaAl<sub>2</sub>O<sub>4 </sub>nanocrystals. The proposed approach is a step toward the intentional designing of the highly sensitive luminescent thermometer.</p>
Optically Stimulated Luminescence data from archaeological site Cornebarrieu (France)
<p>This dataset includes data from OSL dating of 9 samples from the archaeological site of Cornebarrieu (France) performed at Archéosciences Bordeaux (UMR6034, Université Bordeaux Montaigne, CNRS, Pessac France) for Paleotime.</p>
Optically Stimulated Luminescence data from archaeological site Les Auzières (France)
<p>This dataset includes data from OSL dating of 6 samples from the archaeological site of Les Auzières (France) performed at IRAMAT-CRP2A (UMR5060, Université Bordeaux Montaigne, CNRS, Pessac France) for Nicolas Frerebeau and Jean-Baptiste Fourvel (CNRS).</p>
Frequency-domain method for characterization of upconversion luminescence kinetics
<p><strong>This folder contains all raw data underlying the results presented in a manuscript, submitted to </strong><strong><em>The Journal of Physical Chemistry Letters</em></strong><strong>, and entitled:</strong></p> <p><strong>Frequency-domain method </strong><strong>for </strong><strong>characterization of upconversion luminescence kinetics</strong></p> <p><strong>Authored by:</strong></p> <p>Lucía Labrador-Páez,<sup>a</sup> Jouko Kankare,<sup>b</sup> Iko Hyppänen,<sup>b</sup> Tero Soukka,<sup>b,</sup>* Elina Andresen,<sup>c</sup> Ute Resch-Genger,<sup>c</sup> Jerker Widengren,<sup>a</sup> Haichun Liu<sup>a,</sup>*</p> <p><em><sup>a </sup></em><em>Department of Applied Physics, KTH Royal Institute of Technology, Stockholm, Sweden. </em></p> <p><em><sup>b </sup></em><em>University of Turku, Turku, Finland.</em></p> <p><em><sup>c</sup></em> <em>Federal Institute for Materials Research and Testing (BAM), Berlin, Germany. </em></p> <p>*Corresponding authors: <a href="mailto:haichun@kth.se"><em>haichun@kth.se</em></a><em>; tejoso@utu.fi.</em></p> <p> </p> <p><strong>The data files are grouped according to the different figures in the manuscript where the extracted results are presented.</strong></p> <p> </p> <p><strong>ABSTRACT</strong></p> <p>The frequency-domain (FD) method provides an alternative to the commonly used time-domain (TD) approach in characterizing the luminescence kinetics of luminophores. This method has its own strengths compared to the TD approach, e.g., the capability to decouple multiple lifetime components with higher reliability and accuracy. While extensively explored for characterizing luminophores with a linear emission, the FD method has not been investigated for studying nonlinear luminescent materials such as lanthanide-doped upconversion nanoparticles (UCNPs), featuring more complicated luminescence kinetics. In this work, employing a simplified rate-equation model representing a standard two-photon energy-transfer upconversion process, we thoroughly analysed the response of the upconversion luminescence (UCL) of UCNPs in the FD method in theory. We found that the application of this method can potentially obtain the effective decay rates of three critical energy states of the sensitizer and activator ions involved in the upconversion process, from a single experiment. The validity of the FD method is further demonstrated by experimental data, agreeing reasonably well with the results obtained by TD methods.</p>
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.