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MA: Fachverband Magnetismus
MA 22: Transport: Molecular Electronics (jointly with CPP, HL, and MA)
MA 22.4: Vortrag
Mittwoch, 13. März 2013, 10:15–10:30, H2
Surface Plasmon Enhanced Electroluminescence of a Molecular Junction — •Yuan Zhang1,2, Yaroslav Zhelinskyy1, and Volkhard May1 — 1Institut für Physik, Humboldt Universität zu Berlin, Newtonstraße 15, D-12489 Berlin, Germany — 2University of Science and Technology Beijing, XueYuan Road 30, 100083 Beijing, P. R. China
There are some first experiments indicating surface plasmon enhanced emission of a molecular junction.
We present a coherent theory for this phenomenon, which is based on our previous work on molecule
metal nanoparticle complexes [1,2,3,4].
Ultilizing a density matrix description our theory accounts for electron transfer in junction, photon emission and
energy exchange coupling between the molecule and spherical leads.
As a central result, we report on a three order of magnitude enhanced molecular photon emission,
which dependence on molecular and junction parameters are also discussed.
[1] Y. Zelinskyi, Y. Zhang, and V. May, J. Phys. Chem. A, DOI: 10.1021/jp305505c
[2] Y. Zhang, Y. Zelinskyy, and V. May, J. Phys. Chem. C, accepted
[3] Y. Zhang, Y. Zelinskyy, and V. May, J. Nanophot., in press
[4] Y. Zelinskyy and V. May, Nano Lett. 12, 446 (2012)