摘要:
The present invention provides methods for making pnictide compositions, particularly photoactive and/or semiconductive pnictides. In many embodiments, these compositions are in the form of thin films grown on a wide range of suitable substrates to be incorporated into a wide range of microelectronic devices, including photovoltaic devices, photodetectors, light emitting diodes, betavoltaic devices, thermoelectric devices, transistors, other optoelectronic devices, and the like. As an overview, the present invention prepares these compositions from suitable source compounds in which a vapor flux is derived from a source compound in a first processing zone, the vapor flux is treated in a second processing zone distinct from the first processing zone, and then the treated vapor flux, optionally in combination with one or more other ingredients, is used to grow pnictide films on a suitable substrate.
摘要:
A new composition of matter is disclosed wherein oxygen vacancies in a semiconducting transition metal oxide such as titanium dioxide are filled with a halogen such as Fluorine, whereby the conductivity of the composition is greatly enhanced, while at the same time the chemical stability of the composition is greatly improved. Stoichiometric titanium dioxide having less than 3% oxygen vacancies is subject to fluorine insertion such that oxygen vacancies are filled, limited amounts of fluorine replace additional oxygen atoms and fluorine interstitially inserts into the body of the Ti02 composition. A method is described for the preparation of this new composition of matter, in which (1) a layer of a transition metal oxide is first deposited upon a substrate, (2) the deposited layer is then subject to rapid thermal anneal in the presence of oxygen to increase the presence of oxygen in the as-deposited film, and thereafter (3) the film is exposed to a nitrogen plasma containing trace amounts of a halogen containing gas, the gas may include fluorine atoms to achieve fluorine insertion. A new composition of matter is disclosed for a doped metal oxide and a metal catalyst. A method is described for catalyzing a reaction utilizing a doped metal oxide and a metal catalyst. A catalytic solid state device comprising a doped metal oxide with a metal catalyst formed thereon for catalyzing a reaction.
摘要:
Embodiments of the invention provide a method of forming a doped gallium arsenide based (GaAs) layer from a solution based precursor. The doped gallium arsenide based (GaAs) layer formed from the solution based precursor may assist solar cell devices to improve light absorption and conversion efficiency. In one embodiment, a method of forming a solar cell device includes forming a first layer with a first type of dopants doped therein over a surface of a substrate, forming a GaAs based layer on the first layer, and forming a second layer with a second type of dopants doped therein on the GaAs based layer.
摘要:
The semiconductor device includes a memory cell including a first transistor including a first channel formation region, a first gate electrode, and first source and drain regions; a second transistor including a second channel formation region provided so as to overlap with at least part of either of the first source region or the first drain region, a second source electrode, a second drain electrode electrically connected to the first gate electrode, and a second gate electrode; and an insulating layer provided between the first transistor and the second transistor. In a period during which the second transistor needs in an off state, at least when a positive potential is supplied to the first source region or the first drain region, a negative potential is supplied to the second gate electrode.
摘要翻译:提供一种外延膜形成方法,其可以通过溅射法由+ c极性的III族氮化物半导体制成外延膜,并且还提供了一种适于该外延膜形成方法的真空处理装置 。 例如,溅射法用于使用加热器(103)加热到任意温度的a-Al 2 O 3衬底(107)上的III族氮化物半导体薄膜的外延生长。 首先,将a-Al 2 O 3衬底(107)设置在包括加热器(103)的衬底保持器(99)上,使得a-Al 2 O 3衬底(107)以预定距离(d2)设置, 来自加热器(103)。 接着,在与加热器(103)隔开规定距离(d2)的a-Al 2 O 3衬底(107)上,在a-Al 2 O 3衬底(107)上形成III族氮化物半导体薄膜用外延膜。