A5027392266- Mechanical and Optical Resonators
- Photonic and Optical Devices
- Carbon Nanotubes in Composites
- Photonic Crystals and Applications
- Silicon Nanostructures and Photoluminescence
- Polydiacetylene-based materials and applications
- Quantum Information and Cryptography
- Thermal Radiation and Cooling Technologies
- Superconducting and THz Device Technology
- Graphene research and applications
- Molecular Junctions and Nanostructures
- Electrochemical Analysis and Applications
- Advanced Memory and Neural Computing
- Quantum-Dot Cellular Automata
- Advanced Thermoelectric Materials and Devices
Technical University of Darmstadt
2017-2023
Karlsruhe Institute of Technology
2016-2022
The University of Sydney
2021
Ludwig-Maximilians-Universität München
2021
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 sources, low-loss into a environment, and site-selective placement desired positions on chip. Here, we overcome these using heterogeneous electroluminescent (EL), semiconducting carbon nanotubes (sCNTs) hybrid two dimensional - three (2D-3D) circuits. We demonstrate enhanced...
Single-walled carbon nanotubes as emerging quantum-light sources may fill a technological gap in silicon photonics due to their potential use near-infrared, electrically driven, classical or nonclassical emitters. Unlike photoluminescence, where are excited with light, electrical excitation of single tubes is challenging and heavily influenced by device fabrication, architecture, biasing conditions. Here we present electroluminescence spectroscopy data ultra-short-channel devices made from...
Carbon nanotubes (CNTs) have recently been integrated into optical waveguides and operated as electrically-driven light emitters under constant electrical bias. Such devices are of interest for the conversion fast signals ones within a nanophotonic circuit. Here, we demonstrate that waveguide-integrated single-walled CNTs promising high-speed transducers light-pulse generation in gigahertz range. Using scalable fabrication approach realize hybrid CNT-based devices, which generate pulse...
Ionic liquids enable efficient gating of materials with nanoscale morphology due to the formation a double layer that can also follow strongly vaulted surfaces. On carbon nanotubes, this lead cylindrical gate layer, allowing an ideal control drain current even at small voltages. In work, we apply ionic liquid chirality-sorted (9, 8) nanotubes bridging metallic electrodes gap sizes 20 nm and 10 nm. The single-tube devices exhibit diameter-normalized densities up 2.57 mA/μm, on-off ratios 104,...
We combine on-chip single-walled carbon nanotubes (SWNTs) emitters with directional coupling devices as fundamental building blocks for photonic systems. These are essential studying the emission properties of SWNTs in few photon regime future applications quantum photonics. The combination beam splitters herein provides basis correlation measurements necessary nanoscale source characterization. employed fabrication methods fully scalable and thus allow implementing a multitude functional...
Abstract All-carbon field-effect transistors, which combine carbon nanotubes and graphene hold great promise for many applications such as digital logic devices single-photon emitters. However, the understanding of physical properties nanotube (CNT)/graphene hybrid systems in remained limited. In this combined experimental theoretical study, we use a quantum transport model transistors based on electrodes CNT channels to explain experimentally observed low currents. We find that large...
Electrically driven single photon sources coupled to waveguide devices offer exciting prospects for quantum photonic applications. Such emitters based on semiconducting carbon nanotubes allow scalable integration with nanophotonic circuits and can be characterized chip using superconducting detectors.
In this work we investigate the response on THz radiation of a FET device based an individual carbon nanotube conductance channel. It was already shown, that such devices can be either diode rectification origin or thermoelectric effect their combination. demonstrate at 77K and 8K temperatures strong bolometric also makes significant contribution to response.
Single walled carbon nanotubes as emerging quantum-light sources may fill a technological gap in silicon photonics due to their potential use near infrared, electrically driven, classical or non-classical emitters. Unlike photoluminescence, where are excited with light, electrical excitation of single tubes is challenging and heavily influenced by device fabrication, architecture biasing conditions. Here we present electroluminescence spectroscopy data ultra short channel devices made from...
Single-walled carbon nanotubes as emerging quantum-light sources may fill a technological gap in silicon photonics due to their potential use near-infrared, electrically-driven, classical or non-classical emitters. Unlike photoluminescence, where are excited with light, electrical excitation of single-tubes is challenging and heavily influenced by device fabrication, architecture biasing conditions. Here we present electroluminescence spectroscopy data ultra-short channel devices made from...
We for the first-time developed telecom hybrid graphene photonic crystal cavity device with an integrated carbon nanotube ensuring high enhancement of its electroluminescent signal and demonstrating supervision intensity.
We developed hybrid graphene-Si 3 N 4 cross-bar photonic crystal cavity devices, strengthening light interaction with the coupled carbon nanotube leading to generation of an enhanced electroluminescent signal in telecom wavelength band.