摘要:
A graphene electronic device and a method of fabricating the graphene electronic device are provided. The graphene electronic device may include a graphene channel layer formed on a hydrophobic polymer layer, and a passivation layer formed on the graphene channel layer. The hydrophobic polymer layer may prevent or reduce adsorption of impurities to transferred graphene, and a passivation layer may also prevent or reduce adsorption of impurities to a heat-treated graphene channel layer.
摘要:
The graphene electronic device may include a gate oxide on a conductive substrate, the conductive substrate configured to function as a gate electrode, a pair of first metals on the gate oxide, the pair of the first metals separate from each other, a graphene channel layer extending between the first metals and on the first metals, and a source electrode and a drain electrode on both edges of the graphene channel layer.
摘要:
An oscillator generates a signal using precession of a magnetic moment of a magnetic domain wall. The oscillator includes a free layer having the magnetic domain wall and a fixed layer corresponding to the magnetic domain wall. A non-magnetic separation layer is interposed between the free layer and the fixed layer.
摘要:
According to example embodiments, an electrode structure includes a graphene layer on a semiconductor layer and an electrode containing metal on the graphene layer. A field effect transistor (FET) may include the electrode structure.
摘要:
In a semiconductor device including graphene, a gate insulating layer may be formed between a gate electrode and a graphene layer, and an interlayer insulating layer may be formed under a portion of the graphene layer under which the gate insulating layer is not formed. The gate insulating layer may include a material that has higher dielectric permittivity than the interlayer insulating layer.
摘要:
In a semiconductor device including graphene, a gate insulating layer may be formed between a gate electrode and a graphene layer, and an interlayer insulating layer may be formed under a portion of the graphene layer under which the gate insulating layer is not formed. The gate insulating layer may include a material that has higher dielectric permittivity than the interlayer insulating layer.
摘要:
Provided is a graphene device and a method of manufacturing the same. The graphene device may include an upper oxide layer on at least one embedded gate, and a graphene channel and a plurality of electrodes on the upper oxide layer. The at least one embedded gate may be formed on the substrate. The graphene channel may be formed on the plurality of electrodes, or the plurality of electrodes may be formed on the graphene channel.
摘要:
A graphene electronic device may include a silicon substrate, connecting lines on the silicon substrate, a first electrode and a second electrode on the silicon substrate, and an interlayer dielectric on the silicon substrate. The interlayer dielectric may be configured to cover the connecting lines and the first and second electrodes and the interlayer dielectric may be further configured to expose at least a portion of the first and second electrodes. The graphene electronic device may further include an insulating layer on the interlayer dielectric and a graphene layer on the insulating layer, the graphene layer having a first end and a second end. The first end of the graphene layer may be connected to the first electrode and the second end of the graphene layer may be connected to the second electrode.
摘要:
Methods of fabricating graphene using an alloy catalyst may include forming an alloy catalyst layer including nickel on a substrate and forming a graphene layer by supplying hydrocarbon gas onto the alloy catalyst layer. The alloy catalyst layer may include nickel and at least one selected from the group consisting of copper, platinum, iron and gold. When the graphene is fabricated, a catalyst metal that reduces solubility of carbon in Ni may be used together with Ni in the alloy catalyst layer. An amount of carbon that is dissolved may be adjusted and a uniform graphene monolayer may be fabricated.
摘要:
A magnetic memory device includes a track in which different non-magnetic layers are respectively formed on upper and lower surfaces of a magnetic layer. One of the two non-magnetic layers includes an element having an atomic number greater than or equal to 12. Accordingly, the magnetic layer has a relatively high non-adiabaticity (β).