Results 61 to 70 of about 36,714 (273)

Lanthanide-doped nanoscintillators

open access: yesLight: Science & Applications, 2022
AbstractLanthanide-doped nanoscintillators are taking the lead in several important fields including radiation detection, biomedicine, both at the level of diagnosis and therapy, and information encoding.
openaire   +3 more sources

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr   +7 more
wiley   +1 more source

Xenotime from Morrua, Mozambique [PDF]

open access: yesBulletin of the Geological Society of Finland, 1973
Xenotime, found as well formed crystals in a heavy mineral concentrate from the Morrua pegmatite mine in Mozambique, was studied. The mineral occurs in the sample in two generations, clearly distinguishable from each other.
Th.G. Sahama   +2 more
doaj   +1 more source

Theoretical Study Progress on Application of Ionic Liquids in Extraction and Separation of Lanthanides and Actinides

open access: yesHe huaxue yu fangshe huaxue, 2022
Ionic liquids are considered to have promising applications in the extraction and separation in nuclear fuel reprocessing processes. Conventional extractants exhibit superior extractive performance in ionic liquids than in conventional solvent systems ...
WANG Qiang, SUN Tao-xiang
doaj   +1 more source

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

open access: yesAdvanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao   +5 more
wiley   +1 more source

Triheterometallic Lanthanide Complexes Prepared from Kinetically Inert Lanthanide Building Blocks [PDF]

open access: yesEuropean Journal of Inorganic Chemistry, 2017
AbstractInvited for the cover of this issue is the group of ThomasàJust Sørensen from the University of Copenhagen, Denmark, in collaboration with the group of Stephen Faulkner from Oxford University, UK. The cover image shows the antenna effect, which enhances lanthanide‐centered emission.
Thomas Just Sørensen   +3 more
openaire   +5 more sources

On‐Surface Indigo‐Based Bimolecular Coordination Networks with Programmable Regular or Vitreous Structure

open access: yesAdvanced Functional Materials, EarlyView.
A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu   +9 more
wiley   +1 more source

Narrow-line magneto-optical trap for erbium

open access: yes, 2012
We report on the experimental realization of a robust and efficient magneto-optical trap for erbium atoms, based on a narrow cooling transition at 583nm. We observe up to $N=2 \times 10^{8}$ atoms at a temperature of about $T=15 \mu K$.
A. Frisch   +8 more
core   +1 more source

The first direct double neutron star merger detection: implications for cosmic nucleosynthesis [PDF]

open access: yes, 2018
The astrophysical r-process site where about half of the elements heavier than iron are produced has been a puzzle for several decades. Here we discuss the role of neutron star mergers (NSMs) in the light of the first direct detection of such an event in
Feindt, U.   +7 more
core   +2 more sources

Photoswitching Conduction in Framework Materials

open access: yesAdvanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez   +4 more
wiley   +1 more source

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