Berlin 2018 – wissenschaftliches Programm

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SYSD: Symposium SKM Dissertation-Prize 2018

SYSD 1: SKM Dissertation-Prize 2018

SYSD 1.2: Hauptvortrag

Montag, 12. März 2018, 11:20–11:40, HE 101

Carbon nanotubes as electrically driven on-chip light sources — •Felix Pyatkov — Institute of Nanotechnology, Karlsruhe Institute of Technology, Germany — Department of Materials and Earth Sciences, TU Darmstadt, Germany

Light emitting carbon nanotubes can be envisioned as waveguide-integrated emitters for future on-chip data communication due to their unique structural, electrical and optical properties. Progress in the field of nanotube sorting, site-selective deposition and efficient light coupling into underlying substrate has made nanotubes suitable for wafer-scale fabrication of active hybrid nanophotonic devices. Here, various devices with versatile functionalities were fabricated and equipped with nanotubes by means of dielectrophoresis. The realized electrically driven nanotube-based light emitters integrated with nanophotonic circuits allow for efficient coupling and propagation of light in waveguides over centimeter distances. It was demonstrated how spectral properties of a nanotube emitter can be controlled directly on a chip. In combination with a one-dimensional photonic crystal cavity nanotube becomes an emitter with exceptionally narrow linewidths at desired adjustable wavelength. Finally, the usage of electrically driven nanotubes as fast waveguide-integrated light emitters with Gbit/s response speed was shown.

Therefore direct, near-field coupling of electrically generated nanotube-emitted light into a waveguide opens new avenues for scalable nanoscale optoelectronic systems in a CMOS compatible framework.