Non-Destructive Low-Temperature Contacts to MoS2 Nanoribbon and Nanotube Quantum Dots

© 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH..

Molybdenum disulfide nanoribbons and nanotubes are quasi-1D semiconductors with strong spin-orbit interaction, a nanomaterial highly promising for quantum electronic applications. Here, it is demonstrated that a bismuth semimetal layer between the contact metal and this nanomaterial strongly improves the properties of the contacts. Two-point resistances on the order of 100 kΩ are observed at room temperature. At cryogenic temperature, Coulomb blockade is visible. The resulting stability diagrams indicate a marked absence of trap states at the contacts and the corresponding disorder, compared to previous devices that use low-work-function metals as contacts. Single-level quantum transport is observed at temperatures below 100 mK.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:35

Enthalten in:

Advanced materials (Deerfield Beach, Fla.) - 35(2023), 13 vom: 09. März, Seite e2209333

Sprache:

Englisch

Beteiligte Personen:

Schock, Robin T K [VerfasserIn]
Neuwald, Jonathan [VerfasserIn]
Möckel, Wolfgang [VerfasserIn]
Kronseder, Matthias [VerfasserIn]
Pirker, Luka [VerfasserIn]
Remškar, Maja [VerfasserIn]
Hüttel, Andreas K [VerfasserIn]

Links:

Volltext

Themen:

Bismuth
Journal Article
Molybdenum disulfide
Nanotubes
Quantum confinement
Quantum dots

Anmerkungen:

Date Completed 29.03.2023

Date Revised 29.03.2023

published: Print-Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.1002/adma.202209333

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM351360204