منابع مشابه
Carbon nanotube intramolecular p-i-n junction diodes with symmetric and asymmetric contacts
A p-i-n junction diode based on the selectively doped single-walled carbon nanotube (SWCNT) had been investigated, in which two opposite ends of individual SWCNT channel were doped into the p- and n-type SWCNT respectively while the middle segment of SWCNT was kept as the intrinsic. The symmetric and asymmetric contacts were used to fabricate the p-i-n junction diodes respectively and studied t...
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Chemist, led the research for the molecular diode (In the semiconductor industry, called p-n junctions)
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The p-n junction cannot be implemented at the nanoscale because the doping is very often a detrimental effect. The doping could change dramatically the properties of a nanomaterial such as graphene or single-walled carbon nanotubes. Therefore, we will present two graphene diodes without a p-n junction. The first is based on the dissimilar metals having workfunction below and above the graphene ...
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Transparent p-n heterojunction diodes are fabricated using p-type CuYO2:Ca and n-type ZnO:Al thin films on a glass substrate coated with indium-tin oxide (ITO). The contact between the n-ZnO:Al / p-CuYO2:Ca heterojunction is found to be rectifying, while the ITO / ZnO:Al contact is ohmic. The typical ratio of forward to reverse current is 15 in the range -3 to 3V. The diode current-voltage char...
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Graphene is a new material whose unique electronic structure endows it with many unusual properties [1]. A monolayer graphene is a gapless two-dimensional (2D) semiconductor with a massless electron-hole symmetric spectrum near the corners of the Brillouin zone, ǫ(k) = ±~v|k|, where v ≈ 10 cm/s. The concentration of these “Dirac” quasiparticles can be accurately controlled by the electric field...
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ژورنال
عنوان ژورنال: Acta Physica Polonica A
سال: 2008
ISSN: 0587-4246,1898-794X
DOI: 10.12693/aphyspola.113.971