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HL: Fachverband Halbleiterphysik

HL 39: Poster III

HL 39.22: Poster

Mittwoch, 19. März 2025, 15:00–18:00, P3

Tuning nanowire lasers via hybridization with organic molecules — •Philipp Swatosch, Edwin Eobaldt, Marco Grünewald, Olga Ustimenko, Kalina Peneva, and Carsten Ronning — Friedrich Schiller Universität Jena, Deutschland

Among the numerous nanomaterials, semiconductor nanowires have drawn significant scientific interest as promising candidates for nanoscale coherent light sources and all-optical circuits. This attention is due to their exceptional waveguiding properties and inherent ability to lase under high excitation. However, precise control over their lasing characteristics, such as emission wavelength and lasing threshold, is essential for various applications. In this regard, hybridizing nanowires with customized molecules presents a potential approach, providing new control mechanisms through efficient charge and energy transfer processes at the heterointerface. To demonstrate this concept, we hybridized ZnO nanowires with perylene-based organic dyes. These chromophores are particularly advantageous as their optical gap can be easily tuned over a wide spectral range through chemical functionalization. This study employs comparative micro-photoluminescence measurements to investigate the impact of these molecules on the lasing properties of the nanowires.

Keywords: Nanowire; Tuning; Organic; Molecules