SKM 2021 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 19: Poster Session IV
HL 19.8: Poster
Donnerstag, 30. September 2021, 13:30–16:30, P
Förster-Type Energy Transfer Between Molecules and Atomically Thin Semiconductors — •Manuel Katzer1, Malte Selig1, Sviatoslav Kovalchuk2, Kyrylo Greben2, Kirill Bolotin2, and Andreas Knorr1 — 1Institut für Theoretische Physik, Nichtlineare Optik und Quantenelektronik, Technische Universität Berlin, Hardenbergstr. 36, 10623 Berlin, Germany — 2Department of Physics, Quantum Nanoelectronics of 2D Materials, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
Interfaces of dye molecules and two-dimensional transition metal dichalcogenides (TMDCs) are promising candidates for optoelectronic applications since they combine the large molecular optical amplitudes and spectral range with high carrier mobilities in the semiconductor [1]. In such interfaces, Förster energy transfer is a key mechanism due to the large dipole moments, and has many intriguing technical applications [2].
In a joint theory-experiment study, we report microscopic calculations of the Förster induced transition rate from dye molecules to a TMDC layer and provide the corresponding optical signatures, with excellent agreement to the experimental data. The theoretic approach is based on microscopic Bloch equations which are solved self-consistently together with Maxwells equations [3], incorporating the sample geometry within the Rytova-Keldysh framework.
[1] Jariwala et al. Nat. Mater. 16, 170 (2017)
[2] Dagher et al. Nat. Nanotech. 13, 925-932 (2018)
[3] Selig et al. Phys. Rev. B 99, 035420 (2019)