6
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: not found
      • Article: not found

      Exact Green’s function renormalization approach to spectral properties of open quantum systems driven by harmonically time-dependent fields

      Physical Review B
      American Physical Society (APS)

      Read this article at

      ScienceOpenPublisher
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Related collections

          Most cited references38

          • Record: found
          • Abstract: found
          • Article: found
          Is Open Access

          Time-dependent transport in interacting and non-interacting mesoscopic systems

          We consider a mesoscopic region coupled to two leads under the influence of external time-dependent voltages. The time dependence is coupled to source and drain contacts, the gates controlling the tunnel- barrier heights, or to the gates which define the mesoscopic region. We derive, with the Keldysh nonequilibrium Green function technique, a formal expression for the fully nonlinear, time-dependent current through the system. The analysis admits arbitrary interactions in the mesoscopic region, but the leads are treated as noninteracting. For proportionate coupling to the leads, the time-averaged current is simply the integral between the chemical potentials of the time-averaged density of states, weighted by the coupling to the leads, in close analogy to the time-independent result of Meir and Wingreen (PRL {\bf 68}, 2512 (1992)). Analytical and numerical results for the exactly solvable non-interacting resonant-tunneling system are presented.
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Photocurrent generation in polymer-fullerene bulk heterojunctions.

            The photocurrent in conjugated polymer-fullerene blends is dominated by the dissociation efficiency of bound electron-hole pairs at the donor-acceptor interface. A model based on Onsager's theory of geminate charge recombination explains the observed field and temperature dependence of the photocurrent in PPV:PCBM blends. At room temperature only 60% of the generated bound electron-hole pairs are dissociated and contribute to the short-circuit current, which is a major loss mechanism in photovoltaic devices based on this material system.
              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Magnetic response of a single, isolated gold loop

                Bookmark

                Author and article information

                Journal
                PRBMDO
                Physical Review B
                Phys. Rev. B
                American Physical Society (APS)
                1098-0121
                1550-235X
                January 2007
                January 11 2007
                : 75
                : 3
                Article
                10.1103/PhysRevB.75.035319
                a26a8917-37aa-48c1-b437-8205f95235c4
                © 2007

                http://link.aps.org/licenses/aps-default-license

                History

                Comments

                Comment on this article