Results 261 to 270 of about 627,475 (313)

Confinement‐Enhanced Multi‐Wavelength Photon Upconversion Based on Triplet–Triplet Annihilation in Nanostructured Glassy Polymers

open access: yesAdvanced Science, Volume 12, Issue 14, April 10, 2025.
Nanostructured polymers that exhibit sensitized triplet–triplet annihilation (TTA) enable broadband‐to‐blue upconversion of low‐intensity light. The materials are comprised of a rigid matrix polymer and liquid nanodroplets containing an emitter and two sensitizers.
Xueqian Hu   +8 more
wiley   +1 more source

The blue plume population in dwarf spheroidal galaxies: genuine blue stragglers or young stellar population? [PDF]

open access: bronze, 2007
Y. Momany   +5 more
openalex  

THE FREQUENCY OF FIELD BLUE-STRAGGLER STARS IN THE THICK DISK AND HALO SYSTEM OF THE GALAXY [PDF]

open access: green, 2015
Rafael M. Santucci   +7 more
openalex   +1 more source

Fundamentals and Applications of Dual‐Frequency Magnetic Particle Spectroscopy: Review for Biomedicine and Materials Characterization

open access: yesAdvanced Science, Volume 12, Issue 13, April 3, 2025.
Superparamagnetic nanoparticles show non‐linear magnetization behavior. Thus, they respond with magnetic intermodulation frequencies upon dual‐frequency magnetic excitation. These uniquely characterize their hydrodynamic and core sizes as well as binding states.
Hans‐Joachim Krause   +1 more
wiley   +1 more source

Size Effect of Negative Capacitance State and Subthreshold Swing in Van der Waals Ferrielectric Field‐Effect Transistors

open access: yesAdvanced Electronic Materials, Volume 11, Issue 4, April 2025.
Analytical calculations performed for the field‐effect transistor (FET) heterostructure “van der Waals ferrielectric film—2D semiconductor—dielectric layer” reveal the pronounced size effect of the ferrielectric negative capacitance (NC) and the subthreshold swing becomes much less than the Boltzmann's limit.
Anna N. Morozovska   +4 more
wiley   +1 more source

Evolution of Dissipative Regimes in Atomically Thin Bi2Sr2CaCu2O8 + x Superconductor

open access: yesAdvanced Electronic Materials, Volume 11, Issue 4, April 2025.
The combination of cryogenic exfoliation methods with a new generation of thermoelectric chips based on silicon nitride microprinted circuit boards gives access to the vortex‐dissipation regime in atomically thin Bi2Sr2CaCu2O8 + x superconductor. The investigation of the Nernst signal in nanostructured samples demonstrates that finite‐size effects play
Sanaz Shokri   +11 more
wiley   +1 more source

Arp2/3 complex-driven spatial patterning of the BCR enhances immune synapse formation, BCR signaling and B cell activation. [PDF]

open access: yesElife, 2019
Bolger-Munro M   +11 more
europepmc   +1 more source

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