Results 61 to 70 of about 40,854 (217)

Multimodal Luminescence from LaAlO3:Eu3+ via Trap Modulation for High‐Temperature Applications

open access: yesAdvanced Photonics Research, EarlyView.
LaAlO3:Eu3+ (LAO:E) phosphor exhibiting multimode luminescence enabled by multilevel traps spanning shallow to deep states is reported. These traps ensure controlled charge storage and release at room and elevated temperatures. Experimental studies and theoretical calculations reveal the trapping–detrapping mechanism, highlighting LAO:E as a promising ...
Abdulelah Alolayan   +3 more
wiley   +1 more source

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

Connecting GRBs and galaxies: the probability of chance coincidence

open access: yes, 2010
Studies of GRB host galaxies are crucial to understanding GRBs. However, since they are identified by the superposition in the plane of the sky of a GRB afterglow and a galaxy there is always a possibility that an association represents a chance ...
Bailyn, Charles D., Cobb, Bethany E.
core   +1 more source

Enhancement of the Persistent Luminescence of SrAl2O4:Eu, Dy Ceramics Through Incorporation of Ag and Au Nanoparticles

open access: yesAdvanced Photonics Research, EarlyView.
Enhanced persistent luminescence of consolidated ceramic substrates done by hot isostatic pressing based on SrAl2O4: Eu, Dy by incorporation of Ag and Au nanoparticles. Persistent luminescent materials are essential for advancing energy‐efficient lighting, bioimaging, and sensing technologies.
Rocío E. Rojas‐Hernández   +6 more
wiley   +1 more source

Enabling robust blue circularly polarized organic afterglow through self-confining isolated chiral chromophore

open access: yesNature Communications
Creating circularly polarized organic afterglow system with elevated triplet energy levels, suppressed non-radiative transitions, and effective chirality, which are three critical prerequisites for achieving blue circularly polarized afterglow, has posed
Mingjian Zeng   +16 more
doaj   +1 more source

Parameter Inference of a State-of-the-Art Physical Afterglow Model for GRB 190114C

open access: yesGalaxies
A state-of-the-art semi-analytic gamma-ray burst (GRB) afterglow model with synchrotron self-Compton (SSC) emission has been applied for the first time for parameter inference using real GRB data. We analyzed the famous GRB 190114C as a case study.
Enrico Rinaldi   +2 more
doaj   +1 more source

Sustainable afterglow materials from lignin inspired by wood phosphorescence

open access: yesCell Reports Physical Science, 2021
Summary: Sustainable organic afterglow room-temperature phosphorescence (RTP) is a particularly attractive phenomenon but remains difficult to achieve.
Jingwen Yuan   +7 more
doaj   +1 more source

Afterglows after Swift [PDF]

open access: yes, 2011
Since their discovery by the Beppo-SAX satellite in 1997, gamma-ray burst afterglows have attracted an ever-growing interest. They have allowed redshift measurements that have confirmed that gamma-ray bursts are located at cosmological distances.
Godet, O., Mochkovitch, R.
core   +2 more sources

Butterfly‐Shaped Guest Molecules Enable Tunable Room‐Temperature Phosphorescence in Host‐Guest Doped Systems

open access: yesAdvanced Science, EarlyView.
Butterfly‐shaped triphenylamine‐based guest molecules (DBDBD) doped into rigid host matrices (TPP, CA) achieve efficient, multicolor‐tunable room‐temperature phosphorescence (RTP). The host‐guest synergy enables ultralong afterglow (up to 4 s) and quantum yields (Φp = 3.42%), with applications in dynamic anti‐counterfeiting and information encryption ...
Zongyong Lou   +5 more
wiley   +1 more source

Smart Semiconductors: An Overview of AZnOS (A= Ca, Sr, Ba) Based Phosphors, Multi‐Stimuli Responsive Luminescence, and Potential Application Prospects

open access: yesAdvanced Science, EarlyView.
This paper reviews the research progress of CaZnOS, SrZnOS, and BaZnOS‐based semiconductor phosphors in recent years, including their crystal structures, synthesis methods, and luminescent properties, as well as summarizes their potential applications. Finally, the challenges and opportunities for the research of these phosphors are also summarized and
Yanze Wang   +12 more
wiley   +1 more source

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