منابع مشابه
δ-doped ldd hmesfet
in this paper we propose and simulate a new heterostructure mesfet, called δ-doped ldd hmesfet. to improve carrier velocity in vicinity of the source in channel of gaas mesfet, one can replace source with alxga 1-x as. by increasing al content, discontinuity of hetero-interface could be increased. therefore, the velocity increases in the low field. however, increasing al mole fraction in excess...
متن کاملA photoluminescence study of δ-doped GaAs
Samples of GaAs 8-doped with beryllium have been studied with photoluminescence. With a lightly doped sample, (2 x 1016 Be atoms per m2) a spectral feature is observed which can be interpreted as caused by radiative recombinations between spatially non-confined conductionband electrons and acceptor-related holes forming a miniband system confined spatially to the &doped region. With higher dens...
متن کاملToxicity of Tungsten Carbide and Cobalt-Doped Tungsten Carbide Nanoparticles in Mammalian Cells in Vitro
BACKGROUND Tungsten carbide nanoparticles are being explored for their use in the manufacture of hard metals. To develop nanoparticles for broad applications, potential risks to human health and the environment should be evaluated and taken into consideration. OBJECTIVE We aimed to assess the toxicity of well-characterized tungsten carbide (WC) and cobalt-doped tungsten carbide (WC-Co) nanopa...
متن کاملCatalytic hydrogen evolution properties of nickel-doped tungsten disulfide
The Journal of Physical Chemistry is published by the American Chemical Society. 1155 Sixteenth Street N.W., Washington, DC 20036 Catalytic hydrogen evolution properties of nickel-doped tungsten disulfide Andrzej Sobczynski, A. J. Bard, A. Campion, M. A. Fox, T. E. Mallouk, S. E. Webber, and J. M. White J. Phys. Chem., 1989, 93 (1), 401-403 • DOI: 10.1021/j100338a077 Downloaded from http://pubs...
متن کاملObservation of the quantum Hall effect in δ-doped SrTiO3
The quantum Hall effect is a macroscopic quantum phenomenon in a two-dimensional electron system. The two-dimensional electron system in SrTiO3 has sparked a great deal of interest, mainly because of the strong electron correlation effects expected from the 3d orbitals. Here we report the observation of the quantum Hall effect in a dilute La-doped SrTiO3-two-dimensional electron system, fabrica...
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ژورنال
عنوان ژورنال: Solid State Ionics
سال: 2020
ISSN: 0167-2738
DOI: 10.1016/j.ssi.2019.115173