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SKM 2023 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 17: Poster Session I

CPP 17.3: Poster

Montag, 27. März 2023, 18:00–20:00, P3

Probing photoluminescent polymers using plasmonic self-assembly — •Onima Bisht1,3, Sezer Seçkin1, and Tobias König1,21Leibniz-Institut für Polymerforschung e.V., Hohe Straße 6, 01069 Dresden, Germany — 2Center for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, 01062 Dresden, Germany — 3Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India

Surface Enhanced Raman Spectroscopy (SERS) is an advantageous and indispensable technique for detection and sensing applications. Although SERS substrates have been fabricated using several top-down approaches, these methods are limited by scalability, uniformity, and high instrumentation costs. Recent developments in template-assisted self-assembly (TASA) techniques have facilitated us to fabricate low-cost, scalable, and uniform gratings consisting of plasmonic nanoparticle chains.[König et al., Adv. Funct. Mater. 2021, 2105054] With the support of the finite-difference time-domain (FDTD) method, we have rationally designed the colloidal grating to benefit from the coherent interaction between Rayleigh anomalies and various plasmon modes. We will combine these modes with the quantum emitter, which we used previously as an efficient gain component for optoelectronic devices. [König et al., Adv. Optical Mater. 2020, 2001280] Finally, we use this overlap of the plasmonic modes with the photoluminescence of the emitters for nonlinear effects such as lasing, strong coupling, and ultra-high SERS sensitivity.

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