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Regensburg 2013 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 34: Transport: Molecular Electronics (jointly with CPP, HL, MA)

TT 34.4: Talk

Wednesday, March 13, 2013, 10:15–10:30, H2

Surface Plasmon Enhanced Electroluminescence of a Molecular Junction — •Yuan Zhang1,2, Yaroslav Zhelinskyy1, and Volkhard May11Institut 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)

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