Results 211 to 220 of about 378,128 (332)

Recent Progress in Organic TADF Emitters Containing Heavy Atoms

open access: yesAdvanced Optical Materials, EarlyView.
In this review, progress on heavy atom use in organic TADF emitters to produce internal and external heavy atom effects is summarized. Impacts on molecular geometry, TADF efficiency, and performance in OLEDs are discussed. An outlook on the challenges and opportunities of heavy atom incorporation is provided.
Seja A. Elgadi   +2 more
wiley   +1 more source

GNSS Observations of Ionospheric Variations During the 21 August 2017 Solar Eclipse

open access: yes, 2017
A. Coster   +5 more
semanticscholar   +1 more source

Bright LaF3:Eu@Ir Phosphors Combining Two‐Photon Excitation, d → f Energy Transfer and Tunable Time‐Gated Chromaticity for Multicolor Cell Imaging

open access: yesAdvanced Optical Materials, EarlyView.
The surface functionalization of Eu‐doped LaF3 particles with a two‐photon absorbing IrIII complex results in the formation of ultrabright Eu:LaF3 phosphors, which exhibit a combination of short‐lived IrIII and long‐lived EuIII‐sensitized emissions. These Ir/Eu hybrids are effectively internalized by HEK‐293 cells without causing toxic effects, thereby
Yating Ye   +5 more
wiley   +1 more source

Excitation‐Wavelength‐Tunable Lasing in Individual Quantum Dot Superparticles

open access: yesAdvanced Optical Materials, EarlyView.
Mesoscale superparticles assembled from CdSe quantum dots are shown to behave as microlasers with emission properties that can be tuned by changing the excitation wavelength. Abstract Microcavities enable precise control over light‐matter interactions, supporting a wide range of applications in photonics and optoelectronics.
Marco Reale   +5 more
wiley   +1 more source

Optimization of ZnGa2O4:Cr3+ Nanoparticles Synthesis Exhibiting Persistent Luminescence for Nanoplastic Labelling and Imaging in Daphnia Magna

open access: yesAdvanced Optical Materials, EarlyView.
ZnGa2O4:Cr3+ nanoparticles with persistent luminescence are synthesized and optimized for labeling microplastics via cryomilling. The solvothermal method provides superior optical properties, enabling background‐free imaging. These luminescent particles are successfully used to trace microplastic uptake and distribution in Daphnia magna, offering a ...
Adrian Drozdowski   +4 more
wiley   +1 more source

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