KIP publications

year 2023
author(s) Ovvyan A P, Li M-K, Gehring H, Beutel F, Kumar S, Hennrich F, Wei L, Chen Y, Pyatkov F, Krupke R, Pernice W H P
title An electroluminescent and tunable cavity-enhanced carbon-nanotube-emitter in the telecom band
KIP-Nummer HD-KIP 23-42
KIP-Gruppe(n) F31
document type Paper
source Nat Commun 14, 3933
Abstract (en)

Emerging photonic information processing systems require chip-level integration of controllable nanoscale light sources at telecommunication wavelengths. Currently, substantial challenges remain in the dynamic control of the sources, the low-loss integration into a photonic environment, and in the site-selective placement at desired positions on a chip. Here, we overcome these challenges using heterogeneous integration of electroluminescent (EL), semiconducting carbon nanotubes (sCNTs) into hybrid two dimensional – three dimensional (2D-3D) photonic circuits. We demonstrate enhanced spectral line shaping of the EL sCNT emission. By back-gating the sCNT-nanoemitter we achieve full electrical dynamic control of the EL sCNT emission with high on-off ratio and strong enhancement in the telecommunication band. Using nanographene as a low-loss material to electrically contact sCNT emitters directly within a photonic crystal cavity enables highly efficient EL coupling without compromising the optical quality of the cavity. Our versatile approach paves the way for controllable integrated photonic circuits.

KIP - Bibliothek
Im Neuenheimer Feld 227
Raum 3.402
69120 Heidelberg