ambipolar


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ambipolar

[¦am·bē′pōl·ər]
(science and technology)
Simultaneously operating in two opposite directions; for example, an electric current arising from the movement of positive and negative ions.
References in periodicals archive ?
Simon explained that so far the most important outcome of his team's research into protoplanetary disk turbulence is the discovery that for turbulence levels to be large enough to agree with what observations suggest, a magnetic field perpendicular to the disk must be present; otherwise, the turbulence is rather weak because the ambipolar diffusion quenches the turbulence.
Para la obtencion del modelo, se parte de la ADE descrita por (1) (Sze, 1981 y Neamen, 2003), donde: L representa la longitud de difusion ambipolar, D se conoce como el coeficiente de difusion ambipolar.
5) Ambipolar characteristics: Refers to having properties of both p-type and n-type transistors.
These include physics of ambipolar electric potential and its variation within a flux surface, the accurate inclusion of momentum conservation, the determination of the in-surface flows that can affect turbulence and island formation, and calculations of the bootstrap current and the confinement properties of impurity species.
Magnetic fields control the early phases of a cloud's contraction, but once they begin to leak out of the cloud by a process called ambipolar diffusion (in which ions and field lines move past the neutral gas), a rapid collapse ensues.
This functionalization leads to a significant increase in the electron affinity of the materials and a considerable reduction in the band gap, consistent with near-IR emission in organic light emitting diodes (OLEDs), ambipolar organic field effect transistor (OFET) mobility, improved n-type stability and effective light harvesting in organic photovoltaic cells (OPVs).
We are developing NONcrystallizable[TM] hole-transporting, electron-transporting, ambipolar, fluorescent, phosphorescent, water soluble, crosslinkable, and solvent-coatable, vacuum-coatable molecular glass mixtures.
Objective: A series of new conjugated polymer materials and conjugated small molecules based on new isoindigo analogues core for high performance, air stable, ambipolar OTFTs and/or OPV will be developed.
8] second corresponding to the ambipolar diffusion length of 3 [micrometer].