All van der Waals Semiconducting PtSe2 Field Effect Transistors with Low Contact Resistance Graphite Electrodes
Publikationen: Beitrag in Fachzeitschrift › Artikel › Forschung › (peer-reviewed)
Autoren
Organisationseinheiten
Externe Organisationseinheiten
- Kind Abdullah University of Science and Technology (KAUST)
- TU Wien
- University of Nova Gorica
- Zentrum für Elektronenmikroskopie Graz
- Technische Universität Graz
- Research Center for Functional Materials, National Institute for Materials Science
- Chinesische Akademie der Wissenschaften, Peking
Abstract
Contact resistance is a multifaceted challenge faced by the 2D materials community. Large Schottky barrier heights and gap-state pinning are active obstacles that require an integrated approach to achieve the development of high-performance electronic devices based on 2D materials. In this work, we present semiconducting PtSe2 field effect transistors with all-van-der-Waals electrode and dielectric interfaces. We use graphite contacts, which enable high ION/IOFF ratios up to 109 with currents above 100 μA μm-1 and mobilities of 50 cm2 V-1 s-1 at room temperature and over 400 cm2 V-1 s-1 at 10 K. The devices exhibit high stability with a maximum hysteresis width below 36 mV nm-1. The contact resistance at the graphite-PtSe2 interface is found to be below 700 Ω μm. Our results present PtSe2 as a promising candidate for the realization of high-performance 2D circuits built solely with 2D materials.
Details
Originalsprache | Englisch |
---|---|
Seiten (von - bis) | 6529-6537 |
Seitenumfang | 9 |
Fachzeitschrift | Nano Letters |
Jahrgang | 24.2024 |
Ausgabenummer | 22 |
DOIs | |
Status | Veröffentlicht - 24 Mai 2024 |