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D3.1 - Orientation, outcoupling and emission shaping in templated molecular layers


Principle Investigator: Prof. Malte Gather

This project will harness the uniform molecular orientation in films of fluorescent J-aggregates and the spectrally narrow luminescence of the J-aggregate state, e.g. in merocyanine dyes. Our goal is to integrate J-aggregates as emissive layer in Organic Light-emitting Diodes and to harness their molecular orientation (B1) and photophysics, in combination with strong-light matter coupling architectures and/or optical gratings, to obtain efficient light extraction as well as spectrally narrow and highly directed emission.


[1] C. Murawski, A. Mischok, J. Booth, J. D. Kumar, E. Archer, L. Tropf, C.-M. Keum, Y.-L. Deng, K. Yoshida, I. D. W. Samuel, M. Schubert, S. R. Pulver, M. C. Gather, Adv. Mat. 42, 1903599 (2019).

[2] A. Graf, M. Held, Y. Zakharko, L. Tropf, M. C. Gather, J. Zaumseil, Nat. Mat. 16, 911 (2017).

[3] T. Schwab, C. Fuchs, R. Scholz, A. Zakhidov, K. Leo, M. C. Gather, Opt. Express 22, 7524 (2014).

[4] P. Liehm, C. Murawski, M. Furno, B. Lüssem, K. Leo, M. C. Gather, App. Phys. Lett. 101, 253304 (2012).

[5] M. Flämmich, M. C. Gather, N. Danz, D. Michaelis, A. H. Bräuer, K. Meerholz, A. Tünnermann, Org. Electr. 11, 1039 (2010).