Results 41 to 50 of about 7,429 (251)

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Recent advance of lanthanide luminescent materials in biological imaging

open access: yes上海师范大学学报. 自然科学版, 2021
Due to the special structure of 4f electron layer, lanthanides have excellent spectral characteristics, such as sharp linear bands and relatively long excited state lifetime, which greatly improves their optical imaging performance and makes them a new ...
LI Mengmeng, JIAO Jingjing, YANG Shiping
doaj   +1 more source

Lanthanide 4f-level location in lanthanide doped and cerium-lanthanide codoped NaLaF4 by photo- and thermoluminescence [PDF]

open access: yesJournal of Applied Physics, 2008
Photo- and thermoluminescence (TL) spectra of NaLaF4:Ln3+ (Ln=Ce,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm) and NaLaF4:Ce3+, Ln3+ (Ln=Nd,Sm,Ho,Er,Tm) are presented and used together with the empirical Dorenbos model in order to establish the 4f energy level positions of all tri- and divalent lanthanide ions doped in NaLaF4. The information will be presented in the
Krumpel, A.H. (author)   +5 more
openaire   +5 more sources

A Cu‐Based Near‐IR Active MOF with an Ion‐Pair Guest Exhibiting Versatile and Selective Gas‐Solid Reactivity

open access: yesAdvanced Materials, EarlyView.
The new Cu‐containing MOF (Me2NH2)(CuICl2)@[Cu4(INA)4Cl2O]·1.5dmf (3) contains a cation and an anion as guests and shows UV‐near‐mid‐IR absorption and near‐IR emission. MOF 3 shows gas‐solid reactivity in the presence of NH3 and HCOOH to yield two new 3D MOF.
Rajat Saha   +10 more
wiley   +1 more source

Rare earth elements (REE) in wild macrofungi: a review highlighting the importance of requisite analytical methodology on data quality

open access: yesRoczniki Panstwowego Zakladu Higieny
The accelerating global use of lanthanides in modern consumer goods has introduced a new source of environmental pollution and potential health hazards.
Jerzy Falandysz   +3 more
doaj   +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

DFTB+and lanthanides [PDF]

open access: yesJournal of Physics: Conference Series, 2010
DFTB+ is a recent general purpose implementation of density-functional based tight binding. One of the early motivators to develop this code was to investigate lanthanide impurities in nitride semiconductors, leading to a series of successful studies into structure and electrical properties of these systems.
Hourahine, B., Aradi, B, Frauenheim, T.
openaire   +3 more sources

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

open access: yesAdvanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella   +3 more
wiley   +1 more source

Dopaminergic- and Serotonergic-Dependent Behaviors Are Altered by Lanthanide Series Metals in Caenorhabditis elegans

open access: yesToxics
The lanthanide series elements are transition metals used as critical components of electronics, as well as rechargeable batteries, fertilizers, antimicrobials, contrast agents for medical imaging, and diesel fuel additives.
Anthony Radzimirski   +5 more
doaj   +1 more source

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