Results 71 to 80 of about 41,592 (205)

Organic Afterglow Vesicles

open access: yesAdvanced Science, EarlyView.
This work constructs organic afterglow vesicles through polymerization‐induced self‐assembly (PISA), integrating thermally activated delayed fluorescence (TADF) type organic afterglow emitters into block copolymer nanostructures. The resulting vesicles exhibited significant room‐temperature afterglow, with an emission lifetime exceeding 200 ...
Siqi Zhu   +8 more
wiley   +1 more source

Kinetic Study of Atmospheric Pressure Nitrogen Plasma Afterglow Using Quantitative Electron Spin Resonance Spectroscopy

open access: yesJournal of Spectroscopy, 2017
Quantitative electron spin resonance spectroscopy is used to measure nitrogen atom density in atmospheric pressure dielectric barrier discharge afterglow. The experiment shows that oxygen injection into early afterglow increases the nitrogen dissociation
A. Tálský   +3 more
doaj   +1 more source

GRB 050408: An Atypical Gamma-Ray Burst as a Probe of an Atypical Galactic Environment [PDF]

open access: yes, 2005
The bright GRB 050408 was localized by HETE-II near local midnight, enabling an impressive ground-based followup effort as well as space-based followup from Swift.
Aldering, G.   +16 more
core   +3 more sources

A generic approach towards afterglow luminescent nanoparticles for ultrasensitive in vivo imaging

open access: yesNature Communications, 2019
Afterglow luminescence is used to reduce background noise and increase sensitivity; however, biocompatible afterglow materials are limited. Here, the authors report on an approach to turn standard optical agents into afterglow nanoparticles and ...
Yuyan Jiang   +9 more
doaj   +1 more source

The Near Infrared and Multiwavelength Afterglow of GRB 000301c [PDF]

open access: yes, 2000
We present near-infrared observations of the counterpart of GRB 000301c. The K' filter (2.1 micron) light curve shows a well-sampled break in the decay slope at t=3.5 days post-burst.
Andrew S. Fruchter   +3 more
core   +2 more sources

Observation of room-temperature afterglow in Polyamide-6 under UV excitation

open access: yesSemiconductor Physics, Quantum Electronics & Optoelectronics, 2019
We report on the observation of time-delayed luminescence of bulk Polyamide-6 polymer material under the room temperature and liquid nitrogen temperature conditions.
M.V. Vasnetsov
doaj   +1 more source

Fall back accretion and energy injections in gamma-ray bursts

open access: yes, 2014
Intense flares that occur at late times relative to the prompt phase have been observed by the $Swift$ satellite in the X-ray afterglows of gamma-ray bursts (GRBs).
Coward, D. M.   +6 more
core   +2 more sources

Mechanochromic Organic Materials: Molecular Mechanisms and Multidimensional Applications

open access: yesAdvanced Physics Research, EarlyView.
Mechanochromic (MC) organic materials change color in response to mechanical force. This review elucidates the molecular mechanisms (e.g., aggregation‐induced emission, AIE) and explores their multidimensional applications in sensors, anti‐counterfeiting, biomedical devices, and structural health monitoring, providing a roadmap for future smart ...
Xiaozhe Yin   +5 more
wiley   +1 more source

Charge decay in the spatial afterglow of plasmas and its impact on diffusion regimes

open access: yesNature Communications, 2023
The spatial afterglow is a region at the boundary of a non-equilibrium plasma where charged species relax into ambient equilibrium. In many applications, the spatial afterglow is the part of the plasma that interacts with surfaces, such as suspended ...
Nabiel H. Abuyazid   +3 more
doaj   +1 more source

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