Berlin 2024 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 37: Poster IV

HL 37.17: Poster

Mittwoch, 20. März 2024, 18:00–20:30, Poster F

Optical tuning of Perylene-hybridized nanowire lasers — •Leon Kroß, Edwin Eobaldt, Jakob Wurschi, Aurelia Eberhard, Marco Grünewald, Daniel Costabel, Kalina Peneva, and Carsten Ronning — Friedrich-Schiller-Universität, Jena, Germany

Over the past decade, the exploration of the laser properties has been a focal point in semiconductor nanowire research. With the spectral and temporal characteristics well-established to date, the next step involves advancing towards their application as nano-scale coherent light sources by deliberately manipulating these properties. In this regard, the hybridization of nanowires with customized molecules might offer new knobs through efficient charge and energy transfer processes at the heterointerface. As a proof of concept, ZnO nanowires were hybridized with perylene-based dye molecules as they provide an extraordinary chemical and optical stability, and, especially, the advantage to easily tune their optical gap over a wide spectral range by chemical functionalization. In this study, we carried out comparative micro-photoluminescence measurements to examine the influence of the molecules on the nanowire lasing properties. In particular, we show how different chemical functionalization and the applied amount of dyes play a significant role for a wavelength tuning of the nanowire, which paves the way towards a highly controllable emission by tailoring the chemical structure of the dyes.

Keywords: Nanowire; Perylene; Dye; Laser; Tuning