Results 41 to 50 of about 28,129 (176)

Graphene–dielectric integration for graphene transistors [PDF]

open access: yesMaterials Science and Engineering: R: Reports, 2010
Graphene is emerging as an interesting electronic material for future electronics due to its exceptionally high carrier mobility and single-atomic thickness. Graphene-dielectric integration is of critical importance for the development of graphene transistors and a new generation of graphene based electronics.
Lei, Liao, Xiangfeng, Duan
openaire   +2 more sources

Entwicklung des wissenschaftlichen Denkens bei Vier- bis Achtjährigen

open access: yesBeiträge zur Lehrerinnen- und Lehrerbildung, 2006
Die Metapher vom «Kind als Wissenschaftler» ist nach wie vor einflussreich in der Entwicklungspsychologie. Kinder bilden intuitive Theorien und Hypothesen über Phänomene ihrer Umgebung und über die eigene Person (physikalische, biologische ...
Susanne Koerber
doaj   +1 more source

Nanocoating on cotton fabric with nitrogen-doped graphene quantum dots/titanium dioxide/PVA: an erythemal UV protection and photoluminescent finishing

open access: yesJournal of Materials Research and Technology, 2022
Prolonged exposure to ultraviolet (UV) radiation from the sun can result in several skin problems, such as accelerating aging, burns, blemishes, or even cancer.
B.H.S. Felipe   +6 more
doaj   +1 more source

Mechanical graphene

open access: yesNew Journal of Physics, 2017
10 pages, 4 figures; Submitted to New Journal of Physics focus issue on Topological ...
Joshua E S Socolar   +2 more
openaire   +3 more sources

A linear-time algorithm for finding a complete graph minor in a dense graph

open access: yes, 2012
Let g(t) be the minimum number such that every graph G with average degree d(G) \geq g(t) contains a K_{t}-minor. Such a function is known to exist, as originally shown by Mader. Kostochka and Thomason independently proved that g(t) \in \Theta(t*sqrt{log
Bruce Reed   +6 more
core   +2 more sources

MOFs als neue katalytische Plattform für kovalente adaptive Netzwerke: Katalyse trifft Verstärkung

open access: yesAngewandte Chemie, EarlyView.
Eine neu entwickelte, heterogene, katalytische Plattform für kovalente adaptive Netzwerke (CANs) wird vorgestellt. Dies wird erreicht durch die Immobilisierung von Basen mit geringem Molekulargewicht auf metallorganischen Gerüstverbindungen (MOFs). Der erhaltene Katalysator UiO‐TBD profitiert von der hohen Beladungskapazität von MOFs und demonstriert ...
Simon Renner   +9 more
wiley   +1 more source

Electrochemical determination of phenothrin in fruit juices at graphene oxide-polypyrrole modified glassy carbon electrode

open access: yesSensing and Bio-Sensing Research, 2018
An electrochemical sensor was developed based on graphen oxide-polypyrrole modified glassy carbon electrode (GO/PPy/GCE) for sensitive determination of phenothrin in fruit samples.
Molla Tefera   +5 more
doaj   +1 more source

A kinetic model for the transport of electrons in a graphene layer

open access: yes, 2016
In this article, we propose a new numerical model for computation of the transport of electrons in a graphene device. The underlying quantum model for graphene is a massless Dirac equation, whose eigenvalues display a conical singularity responsible for ...
Kammerer, Clotilde Fermanian   +1 more
core   +1 more source

Raman Spectrum of Graphene and Graphene Layers [PDF]

open access: yesPhysical Review Letters, 2006
Graphene is the two-dimensional building block for carbon allotropes of every other dimensionality. We show that its electronic structure is captured in its Raman spectrum that clearly evolves with the number of layers. The D peak second order changes in shape, width, and position for an increasing number of layers, reflecting the change in the ...
Ferrari A. C.   +10 more
openaire   +3 more sources

Interaction of restoration processes with properties within copper‐graphene composites during direct consolidation Interaktion von Wiederherstellungsprozessen mit Eigenschaften innerhalb von Kupfer‐Graphen‐Verbundwerkstoffen während der direkten Konsolidierung

open access: yesMaterialwissenschaft und Werkstofftechnik, EarlyView.
By refining grains and additions of strengthening elements, mechanical properties of electro‐conductive copper can be increased. Fine‐grained coper‐graphene composites were directly consolidated from original powders by rotary swaging to achieve rods with enhanced mechanical properties and electric conductivity of up to 96% international annealed ...
L. Kunčická   +4 more
wiley   +1 more source

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