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Sökning: LAR1:lu > Samuelson Lars

  • Resultat 531-540 av 639
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531.
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532.
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533.
  • Suhara, M, et al. (författare)
  • A proposal to estimate homogeneous and inhomogeneous energy level broadening in double barrier resonant tunneling diodes
  • 2002
  • Ingår i: Compound Semiconductors 2001 (Institute of Physics Conference Series). - 0951-3248. ; :170, s. 363-367
  • Konferensbidrag (refereegranskat)abstract
    • In this paper we proposed a method for evaluating a homogeneous broadening (DeltaE(h)) and inhomogeneous broadening (DeltaE(i)) of the resonant energy level width independently by using current-voltage characteristics in double barrier resonant tunneling diodes (DBRTDs). The line shape of the resonant energy broadening is assumed as a convolution of Lorentz function and a Gauss function. Measured transmittance in GaAs0.25P0.75/GaAs DBRTDs grown by MOCVD is well fit to the convolution function. The DeltaE(h), DeltaE(i) were estimated as 4.3[meV] and 1.0 [meV], respectively, where the measured energy-voltage conversion factor 17 is 0.3[eV/V].
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534.
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535.
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536.
  • Suyatin, Dmitry, et al. (författare)
  • Electrical properties of self-assembled branched InAs nanowire junctions
  • 2008
  • Ingår i: Nano Letters. - : American Chemical Society (ACS). - 1530-6992 .- 1530-6984. ; 8:4, s. 1100-1104
  • Tidskriftsartikel (refereegranskat)abstract
    • We investigate electrical properties of self-assembled branched InAs nanowires. The branched nanowires are catalytically grown using chemical beam epitaxy, and three-terminal nanoelectronic devices are fabricated from the branched nanowires using electron-beam lithography. We demonstrate that, in difference from conventional macroscopic junctions, the fabricated self-assembled nanowire junction devices exhibit tunable nonlinear electrical characteristics and a signature of ballistic electron transport. As an example of applications, we demonstrate that the self-assembled three-terminal nanowire junctions can be used to implement the functions of frequency mixing, multiplication, and phase-difference detection of input electrical signals at room temperature. Our results suggest a wide range of potential applications of branched semiconductor nanostructures in nanoelectronics.
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537.
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538.
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539.
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540.
  • Suyatin, Dmitry, et al. (författare)
  • Gallium phosphide nanowire arrays and their possible application in cellular force investigations
  • 2009
  • Ingår i: Journal of Vacuum Science and Technology B. - : American Vacuum Society. - 1520-8567. ; 27:6, s. 3092-3094
  • Tidskriftsartikel (refereegranskat)abstract
    • The authors report the fabrication of gallium phosphide nanowire arrays that can be used for cellular force measurements. The nanowire positions are defined using electron beam lithography and the nanowires are grown using metal organic vapor phase epitaxy. By varying the nanowire diameter, length, and spacing from substrate to substrate, they can expect to probe cell forces over several orders of magnitude, depending on the chosen substrate. The small diameter of the nanowires allows them to densely pack the array and to achieve unprecedented spatial resolution for future cell force-array applications.
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  • Resultat 531-540 av 639
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Samuelson, Lars (638)Ta bort avgränsningen
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