Results 1 to 10 of about 2,045,559 (264)

A gated strategy stabilizes room‐temperature phosphorescence

open access: yesAggregate, 2023
Room‐temperature phosphorescence (RTP) of purely organic materials is easily quenched with unexpected purposes because the excited triplet state is extremely susceptible to external stimuli.
Kaizhi Gu   +7 more
doaj   +1 more source

Bloch oscillations at room temperature [PDF]

open access: yesPhysical Review B, 1995
We report on the observation of coherent electronic wave-packet oscillations in a semiconductor heterostructure at room temperature. Bloch oscillations are excited in a wide-miniband GaAs/${\mathrm{Al}}_{0.3}$${\mathrm{Ga}}_{0.7}$As superlattice by femtosecond laser pulses.
Dekorsy, Thomas   +3 more
openaire   +3 more sources

From LaH10 to room–temperature superconductors [PDF]

open access: yesScientific Reports, 2020
AbstractThermodynamic parameters of the LaH10 superconductor were an object of our interest. LaH10 is characterised by the highest experimentally observed value of the critical temperature: $${{\boldsymbol{T}}}_{{\boldsymbol{C}}}^{{\boldsymbol{a}}}={\bf{215}}$$TCa=215 K (pa = 150 GPa) and $${{\boldsymbol{T}}}_{{\boldsymbol{C}}}^{b}={\bf{260}}$$TCb=260 ...
Kostrzewa, M.   +3 more
openaire   +3 more sources

Room-temperature chemical synthesis of C2

open access: yesNature Communications, 2020
Diatomic carbon (C2) is historically an elusive chemical species, considered to require high physical energy for its generation. Here, the authors describe the first room-temperature chemical synthesis of C2 and present experimental evidence for its ...
Kazunori Miyamoto   +7 more
doaj   +1 more source

BF3/nano-γ-Al2O3 Promoted Knoevenagel Condensation at Room Temperature [PDF]

open access: yesJournal of Nanostructures, 2015
The Knoevenagel condensation of aromatic aldehydes with barbituric acid, dimedone and malononitrile occurred in the presence of BF3/nano-γ-Al2O3 at room temperature in ethanol.
B. F. Mirjalili   +2 more
doaj   +1 more source

Super-formable pure magnesium at room temperature

open access: yesNature Communications, 2017
Replacing steel or aluminium vehicle parts with magnesium would result in reduced emissions, but shaping magnesium without cracking remains challenging.
Zhuoran Zeng   +4 more
doaj   +1 more source

Room-temperature [C2mim]OAc crystal

open access: yesJournal of Ionic Liquids
1-Ethyl-3-methylimidazolium acetate ([C2mim]OAc) is the most commonly used cellulose-dissolving ionic liquid and has been extensively studied for biorefinery applications.
Ayumi Hachisu   +3 more
doaj   +1 more source

Semiconductor room-temperature maser

open access: yesNature Communications
We report the first demonstration of a semiconductor maser based on silicon vacancies (VSi) in 4H-silicon carbide (SiC). Using an active feedback loop, we enhance the resonator’s quality factor, enabling continuous-wave maser operation even above room ...
Andreas Gottscholl   +5 more
doaj   +1 more source

Room temperature 3D carbon microprinting

open access: yesNature Communications
Manufacturing custom three-dimensional (3D) carbon functional materials is of utmost importance for applications ranging from electronics and energy devices to medicine, and beyond.
Fernand E. Torres-Davila   +10 more
doaj   +1 more source

A Room Temperature ZnO-NPs/MEMS Ammonia Gas Sensor

open access: yesNanomaterials, 2022
This study uses ultrasonic grinding to grind ZnO powder to 10–20-nanometer nanoparticles (NPs), and these are integrated with a MEMS structure to form a ZnO-NPs/MEMS gas sensor.
Ting-Jen Hsueh, Ruei-Yan Ding
doaj   +1 more source

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