Strategies for High-Performance Solid-State Triplet-Triplet-Annihilation-Based Photon Upconversion.
Sign Up to like & getrecommendations! Published in 2020 at "Advanced materials"
DOI: 10.1002/adma.201908175
Abstract: Photon upconversion via triplet-triplet annihilation (TTA) has achieved high efficiencies in solution and within polymer matrices that support molecular migration systems. It has diverse potential applications including bioimaging, optical sensors, and photovoltaics. To date, however,… read more here.
Keywords: solid state; state; annihilation; tta ... See more keywords
Constraints on dark matter annihilation from the Event Horizon Telescope observations of M87*
Sign Up to like & getrecommendations! Published in 2022 at "Journal of High Energy Physics"
DOI: 10.1007/jhep04(2022)018
Abstract: Abstract The fast developments of radio astronomy open a new window to explore the properties of Dark Matter (DM). The recent direct imaging of the supermassive black hole (SMBH) at the center of M87 radio… read more here.
Keywords: annihilation; dark matter; event horizon; horizon telescope ... See more keywords
Simplified models of dark matter with a long-lived co-annihilation partner
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep06(2017)041
Abstract: A bstractWe introduce a new set of simplified models to address the effects of 3-point interactions between the dark matter particle, its dark co-annihilation partner, and the Standard Model degree of freedom, which we take… read more here.
Keywords: annihilation; simplified models; partner; matter ... See more keywords
Gravity-mediated dark matter annihilation in the Randall-Sundrum model
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep10(2017)094
Abstract: A bstractObservational evidence for dark matter stems from its gravitational interactions, and as of yet there has been no evidence for dark matter interacting via other means. We examine models where dark matter interactions are… read more here.
Keywords: annihilation; matter; dark matter; randall sundrum ... See more keywords
Semi-inclusive back-to-back production of a hadron pair and a single hadron in e+e− annihilation
Sign Up to like & getrecommendations! Published in 2018 at "Journal of High Energy Physics"
DOI: 10.1007/jhep10(2018)008
Abstract: A bstractInclusive hadron production in e+e− annihilation has long been used to study both single hadron fragmentation functions (FF) and dihadron fragmentation functions (DiFF). In particular, the polarized DiFFs can be accessed in electron-positron annihilation… read more here.
Keywords: annihilation; single hadron; hadron pair; back back ... See more keywords
Analysis of Effect of Singlet-Triplet Annihilation in a Low-Threshold Optically Pumped Organic Semiconductor Laser
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Electronic Materials"
DOI: 10.1007/s11664-017-5624-4
Abstract: We investigate the impact of optical excitation in a low-threshold organic semiconductor vertical-cavity surface-emitting laser (OVCSEL) to achieve lasing. We study the threshold behavior and the dynamics of the optimized OVCSEL structure when pumped by… read more here.
Keywords: annihilation; singlet triplet; threshold; organic semiconductor ... See more keywords
The role of open-volume defects in the annihilation of antisites in a B2-ordered alloy
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DOI: 10.1016/j.actamat.2019.06.037
Abstract: Abstract The atomic arrangement in certain ordered alloys, such as B2–Fe60Al40 determines intrinsic material properties for instance, the saturation magnetization. Here we have investigated the influence of open-volume defects on the atomic ordering process at… read more here.
Keywords: role open; volume defects; annihilation; open volume ... See more keywords
Defect structure transformation during substitution in quadruple perovskite CaCu3-Ti4-Fe2O12 studied by positron annihilation spectroscopy
Sign Up to like & getrecommendations! Published in 2019 at "Ceramics International"
DOI: 10.1016/j.ceramint.2019.06.083
Abstract: Abstract Positron annihilation spectroscopic studies have been performed to investigate the defect structural evolution in polycrystalline CaCu3-xTi4-xFe2xO12 (x = 0.0, 0.1, 0.3, 0.5 and 0.7) cubic perovskite samples. The positron lifetimes, relative intensities and Doppler-broadened annihilation lineshape… read more here.
Keywords: annihilation; spectroscopy; cacu3; structure ... See more keywords
Annihilation behavior of irradiation defects induced by γ-ray in biphasic tritium breeding materials xLi2TiO3-(1-x) Li4SiO4
Sign Up to like & getrecommendations! Published in 2021 at "Ceramics International"
DOI: 10.1016/j.ceramint.2020.08.150
Abstract: Abstract For the operation of D-T fusion reactor, tritium breeding materials will be adopted to produce tritium. Li2TiO3–Li4SiO4 biphasic breeders are considered as promising breeding materials due to combining the advantages of Li2TiO3 and Li4SiO4.… read more here.
Keywords: annihilation; irradiation; irradiation defects; xli2tio3 li4sio4 ... See more keywords
Energy production by laser-induced annihilation in ultradense hydrogen H(0)
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Hydrogen Energy"
DOI: 10.1016/j.ijhydene.2021.01.212
Abstract: Abstract Laser-induced nuclear processes in ultra-dense hydrogen H(0) give ejection of bunches of mesons similar to known baryon annihilation processes. This process was recently described as useful for relativistic interstellar travel (Holmlid and Zeiner-Gundersen 2020)… read more here.
Keywords: annihilation; energy production; hydrogen; process ... See more keywords
Positron annihilation exploration of voids in zinc zirconium borate glass ceramics entrenched with ZnZrO3 perovskite crystal phases
Sign Up to like & getrecommendations! Published in 2017 at "Journal of The European Ceramic Society"
DOI: 10.1016/j.jeurceramsoc.2017.11.012
Abstract: Abstract Origin of atomic-deficient free-volume structure in ZnO–ZrO2–B2O3 glass ceramic versus ZrO2 concentration was explored by positron annihilation lifetime spectroscopy (PAL) technique. XRD and SEM studies, on the titled samples indicated that the samples consist… read more here.
Keywords: annihilation; positron annihilation; znzro3 perovskite; crystal phases ... See more keywords