R
Roksana Golizadeh-Mojarad
Researcher at Purdue University
Publications - 12
Citations - 1391
Roksana Golizadeh-Mojarad is an academic researcher from Purdue University. The author has contributed to research in topics: Graphene & Magnetic field. The author has an hindex of 7, co-authored 12 publications receiving 1307 citations. Previous affiliations of Roksana Golizadeh-Mojarad include Intel.
Papers
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Journal ArticleDOI
Photocurrent imaging and efficient photon detection in a graphene transistor
Fengnian Xia,Thomas Mueller,Roksana Golizadeh-Mojarad,Marcus Freitag,Yu-Ming Lin,James C. Tsang,Vasili Perebeinos,Phaedon Avouris +7 more
TL;DR: It is shown that at a certain gate bias, the impact of the metal on the channel potential profile extends into the channel for more than one-third of the total channel length from both source and drain sides; hence, most of the channel is affected by the metal.
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Chemical doping and electron-hole conduction asymmetry in graphene devices.
Damon B. Farmer,Roksana Golizadeh-Mojarad,Vasili Perebeinos,Yu-Ming Lin,George S. Tulevski,James C. Tsang,Phaedon Avouris +6 more
TL;DR: Simulations based on nonequilibrium Green's function formalism suggest that the origin of this asymmetry in transport in graphene devices doped with poly(ethylene imine) and diazonium salts is imbalanced carrier injection from the graphene electrodes caused by misalignment of the electrode and channel neutrality points.
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Nonequilibrium Green's function based models for dephasing in quantum transport
TL;DR: In this paper, a simple phenomenological approach for including dephasing processes in quantum transport models is described, which provides the flexibility of adjusting the degree of phase and momentum relaxation independently that is not currently available in mesoscopic physics and in device simulation while retaining the simplicity of other phenomenological models.
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Effect of contact induced states on minimum conductivity in graphene
TL;DR: In this paper, contact induced gap states in metal-semiconductor Schottky junctions are used to explain the structure dependence of the minimum conductivity observed experimentally, which is not "Ohmic" in origin but arises from a reduced role of contact induced states.
Journal Article
Effect of contact induced states on minimum conductivity in graphene
TL;DR: In this article, contact induced gap states in metal-semiconductor Schottky junctions are used to explain the structure dependence of the minimum conductivity observed experimentally, which is not "Ohmic" in origin but arises from a reduced role of contact induced states.