Project Description
Polaritonic modes that are formed under strong light-matter coupling are well-suited to tune the optical properties of a given excitonic material within a Fabry-Pérot cavity. Several N-heteropolycycles show high absorption cross-sections and excellent thin-film formation properties, which are required to achieve strong coupling. These molecules will be investigated as materials for photodetectors and phototransistors that are integrated in multilayer cavities. The cavities and their strong-coupling properties will be characterized by Fourier imaging to obtain energy- and angle-resolved photoresponsivity spectra. The goal is to develop widely tunable photodetectors/phototransistors. Furthermore, chiral N-heteropolycycles and aligned zone-cast layers of N-heteropolycycles will be integrated in strongly coupled optical cavities to achieve selective detection of circularly and linearly polarized light.
Selected Publications
N. J. Herrmann, O. Korychenska, N. P. Ta, G. E. Mayneord, X. Rodriguez-Martinez, D. T. W. Toolan, C. C. Robertson, A. Iraqi, J. Clark and J. Zaumseil, J. , Fast, slow and reverse polymorph transformations in thin films of a 5,10-dihydroindolo[3,2-b]indole derivative, Mater. Chem. C, 2025, 13, 17838 - 17848.
P. V. Kolesnichenko, M. Hertzog, F. Hainer, O. Kefer, J. Zaumseil and T. Buckup, Dark Excitons and Hot Electrons Modulate Exciton-Photon Strong Coupling in Metal–Organic Optical Microcavities, ACS Photonics, 2025, 12, 3344–3354.
