Results 101 to 110 of about 119,970 (362)
A New Memory Effect in Bulk Crystals of 1T‐TaS2
Advanced Functional Materials, EarlyView.A new memory effect is discovered in 1T‐TaS₂, appearing as a temperature shift in the metal to insulator transition, coinciding with the recently reported ramp reversal memory. These findings imply that ramp reversal memory is an emergent phenomenon, likely to appear in many different systems that share a few basic properties, which are discussed in ...
Avital Fried +4 more
wiley +1 more source
THE ORIGIN OF THE EXTRAGALACTIC GAMMA-RAY BACKGROUND AND IMPLICATIONS FOR DARK MATTER ANNIHILATION [PDF]
, 2015 The origin of the extragalactic γ-ray background (EGB) has been debated for some time. The EGB comprises the γ-ray emission from resolved and unresolved extragalactic sources, such as blazars, star-forming galaxies, and radio galaxies, as well as ...
M. Ajello +17 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.The TOC showcases the chemical structure of the emitter tCzBT2B as an “MVP athlete” in a stadium surrounded by. spotlights and cheering fans celebrating its impressive performance in organic light‐emitting diodes (OLEDs). The stats for this emitter and its device are detailed below.
Dongyang Chen +7 more
wiley +1 more source
Annihilation of positrons, emitted at β+-decay with electrons of the daughter's atom [PDF]
Ядерна фізика та енергетика, 2010 The processes of photon creation or atom ionization during annihilation of positron with other electron of daughter’s atom at β+-decay are considered.
S. M. Fedotkin
doaj
Defects in Inorganic Mechanoluminescent Phosphors: Insights and Impacts
Advanced Functional Materials, EarlyView.Mechanoluminescence is attracting more attention recently, and defect dominates mechanoluminescence performances. Investigating how defects work in the mechanoluminescence process is crucial for elucidating its complex luminescence mechanism. This review aims to emphasize the fundamental role of defects in mechanoluminescence, which offers an ...
Wenhao Li +3 more
wiley +1 more source
Physical Chemistry, Chemical Physics - PCCP, 2017 Triplet-triplet annihilation photon upconversion (TTA-UC) can, through a number of energy transfer processes, efficiently combine two low frequency photons into one photon of higher frequency.
Victor Gray +5 more
semanticscholar +1 more source
Constraints on dark matter annihilation and decay from the isotropic gamma-ray background [PDF]
, 2016 We study the constraints on dark matter (DM) annihilation/decay from the Fermi-LAT Isotropic Gamma-Ray Background (IGRB) observation. We consider the contributions from both extragalactic and galactic DM components.
W. Liu, X. Bi, Su-jie Lin, P. Yin
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.Self‐reinforcing degradation in solution‐processed small‐molecule organic light‐emitting diodes (OLEDs) arises from charge accumulation and exciton‐polaron interactions, leading to molecular aggregation and efficiency loss. This study uncovers the fundamental mechanisms behind this degradation and introduces strategic material engineering approaches ...
Eonji Cha +8 more
wiley +1 more source
Limits on dark matter annihilation signals from the Fermi LAT 4-year measurement of the isotropic gamma-ray background [PDF]
, 2015 We search for evidence of dark matter (DM) annihilation in the isotropic gamma-ray background (IGRB) measured with 50 months of Fermi Large Area Telescope (LAT) observations. An improved theoretical description of the cosmological DM annihilation signal,
The Fermi-LAT Collaboration +112 more
semanticscholar +1 more source
Advanced Healthcare Materials, EarlyView.Membrane fusion‐inspired nanomaterials offer transformative potential in diagnostics by mimicking natural fusion processes to achieve highly sensitive and specific detection of disease biomarkers. This review highlights recent advancements in nanomaterial functionalization strategies, signal amplification systems, and stimuli‐responsive fusion designs,
Sojeong Lee +9 more
wiley +1 more source