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Indium phosphide-based quantum dots (QDs) are a potential material for designing optoelectronic devices, owing their adjustable spectral parameters over the entire visible range, as well as their high biocompatibility and environmental…

材料科学 · 物理学 2025-06-09 S. S. Savchenko , A. O. Shilov , A. S. Vokhmintsev , I. A. Weinstein

The potential of bulk black-phosphorus for thermoelectric applications has been experimentally studied. The Seebeck Coefficient (S) has been measured in the temperature range from 300 K to 385 K, finding a value of S = +335 +- 10 uV/K at…

Recent experiments claimed that the enhancement of catalytic reaction rates occurs via the reduction of activation barriers driven by non-equilibrium (``hot'') electrons in plasmonic metal nanoparticles. These experiments place plasmonic…

化学物理 · 物理学 2020-04-22 Yonatan Sivan , Ieng Wai Un , Yonatan Dubi

High temperature radiating Air is produced experimentally by focusing a shock wave with the help of a spherically converging test section attached to a shock tube. The converging section concentrates the shock to a point with minimum…

流体动力学 · 物理学 2022-07-25 Saranyamol V. S. , Mohammed Ibrahim S

Aims. Formamide (HCONH2) is the simplest molecule containing the peptide bond first detected in the gas phase in Orion-KL and SgrB2. In recent years, it has been observed in high temperature regions such as hot corinos, where thermal…

天体物理仪器与方法 · 物理学 2020-04-22 Maria Angela Corazzi , Davide Fedele , Giovanni Poggiali , John Robert Brucato

We report emergence of photoluminescence at room temperature in trigonal $Cs_3Bi_2Br_9$ at high pressures. Enhancement in intensity with pressure is found to be driven by increase in distortion of $BiBr_6$ octahedra and iso-structural…

The axions produced during the QCD phase transition by vacuum realignment, string decay and domain wall decay thermalize as a result of their gravitational self-interactions when the photon temperature is approximately 500 eV. They then…

宇宙学与河外天体物理 · 物理学 2015-09-08 Nilanjan Banik , Adam Christopherson , Pierre Sikivie , Elisa Maria Todarello

The influence has been studied of the ionization laser polarization on the effective temperature of an ultracold electron source, which is based on near-threshold photoionization. This source is capable of producing both high-intensity and…

原子物理 · 物理学 2013-12-24 W. J. Engelen , D. J. Bakker , O. J. Luiten , E. J. D. Vredenbregt

We report the discovery of photomolecular effect: cleavage of water clusters off surfaces by photons. This effect is demonstrated through surprising absorption of partially wetted hydrogel in the visible spectrum where both water and…

化学物理 · 物理学 2022-01-26 Yaodong Tu , Jiawei Zhou , Shaoting Lin , Mohammed AlShrah , Xuanhe Zhao , Gang Chen

A temperature behavior of the frustrated translational mode (T-mode) of a light particle, coupled by different regimes of ohmicity to the surface, is studied within a formalism of the generalized diffusion coefficients. The memory effects…

统计力学 · 物理学 2015-06-04 V. V. Ignatyuk

We are concerned with the modification of liquid crystalline and polar order in SmC* liquids by illumination. In particular we show that non-uniformity due to absorption and also dynamics, can be complex. The variation of polarization with…

软凝聚态物质 · 物理学 2012-10-17 Milos Knezevic , Mark Warner

The behavior at the air/water interface of multilamellar tubes made of the ethanolamine salt of the 12-hydroxy stearic acid as a function of the temperature has been investigated using Neutron Reflectivity. Those tubes are known to exhibit…

软凝聚态物质 · 物理学 2012-10-03 François Boué , Anne-Laure Fameau , Jean-Paul Douliez , Frédéric Ott , Bruno Novales , Fabrice Cousin

In a system where a boson (e.g, a phonon) of finite frequency $\omega_0$ is coupled to electrons, two phenomena occur as the coupling is increased: electron pairing and polarization of the boson field. Within a path integral formalism and a…

强关联电子 · 物理学 2013-05-29 S. Ciuchi , G. Sangiovanni , M. Capone

The morphology of water ice in the interstellar medium is still an open question. Although accretion of gaseous water could not be the only possible origin of the observed icy mantles covering dust grains in cold molecular clouds, it is…

We experimentally study the energy-temperature relationship of a harmonically trapped Bose-Einstein condensate by transferring a known quantity of energy to the condensate and measuring the resulting temperature change. We consider two…

量子气体 · 物理学 2022-02-09 S. K. Ruddell , D. H. White , A. Ullah , D. Baillie , M. D. Hoogerland

A recombination radiation line of electron-hole plasma, observed in electroluminescence spectra of tunneling silicon MOS diodes, has been investigated at the temperature > 300 K. The internal quantum efficiency of the luminescence, equal to…

其他凝聚态物理 · 物理学 2008-01-22 P. D. Altukhov , E. G. Kuzminov

Perovskite solar cells have shown fast deterioration during actual operation even with encapsulation, but its mechanism has been elusive. We found the fundamental mechanism for irreversible degradation of perovskite materials in which…

Cubic boron arsenide (BAs) is promising for microelectronics thermal management due to its high thermal conductivity. Recently, its potential as an optoelectronic material is also being explored. However, it remains challenging to measure…

Concentrating solar power, particularly parabolic trough system with solar concentrations less than 50, requires spectrally selective solar absorbers that are thermally stable at high temperatures of 400degC above to achieve high…

应用物理 · 物理学 2020-12-16 Hassan Alshehri , Qing Ni , Sydney Taylor , Ryan McBurney , Hao Wang , Liping Wang

We consider the scattering problem for an asymmetric composite photonic structure with a component experiencing a thermally driven phase transition. Using a numerical example, we show that if the heating is caused by the incident light, the…

应用物理 · 物理学 2019-02-27 N. Antonellis , R. Thomas , M. A. Kats , I. Vitebskiy , T. Kottos