C2.1 - Probing molecular order using plasmonics arrays
Principle Investigator: Prof. Klas Lindfors
We will study the influence of templates such as graphene, hexagonal Boron Nitride, and Graphene Nanoribbons on the order of thin films of pi-conjugated molecules using plasmon-exciton coupling. We will use localized optical fields around optical antennas to probe the order in the templated layers. The possibility to control the field distribution around nanoantennas allows us to study the order of the emitter layer with high spatial resolution. Additionally, large transition dipole moments associated with delocalized excitons in the ordered layer may allow reaching the strong-coupling regime and to explore it in organic optoelectronic devices.
References
[1] M. Lu, M. Pfeiffer, B.V. Senkovskiy, D. Haberer, D. Hertel, K. Meerholz, F.R. Fischer, Y. Ando, A. Grüneis, K. Lindfors, 2D Mat. 7(4), 045009 (2020).
[2] M. Pfeiffer, B.V. Senkovskiy, D. Haberer, F. R. Fischer, F. Yang, K. Meerholz, Y. Ando, A. Grüneis, K. Lindfors, 2D Mat. 5(4), 045006 (2018).
[3] M. Pfeiffer, P. Atkinson, A. Rastelli, O.G. Schmidt, H. Giessen, M. Lippitz, K. Lindfors, Sci. Rep. 8, 3415 (2018).
[4] M. Pfeiffer, K. Lindfors, H. Zhang, B. Fenk, F. Phillipp, P. Atkinson, A. Rastelli, O.G. Schmidt, H. Giessen, M. Lippitz, Nano Lett. 14, 197 (2014).