Title :

Transport Properties of Methyl-Terminated Germanane Microcrystallites

Author(s) :

Sciacca, Davide [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Berthe, Maxime [Auteur]
Plateforme de Caractérisation Multi-Physiques - IEMN [PCMP - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Ryan, Bradley [Auteur]
Iowa State University [ISU]
Peric, Nemanja [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Physique - IEMN [PHYSIQUE - IEMN]
Deresmes, D. [Auteur]
Plateforme de Caractérisation Multi-Physiques - IEMN [PCMP - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Biadala, Louis [Auteur]
Physique - IEMN [PHYSIQUE - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Boyaval, Christophe [Auteur]
Centrale de Micro Nano Fabrication - IEMN [CMNF - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Addad, Ahmed [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Lancry, Ophélie [Auteur]
HORIBA France SAS [Villeneuve d'Ascq]
Makarem, Raghda [Auteur]
Laboratoire de physique et chimie des nano-objets [LPCNO]
Legendre, Sébastien [Auteur]
HORIBA France SAS [Villeneuve d'Ascq]
Hocrelle, Didier [Auteur]
HORIBA France SAS [Villeneuve d'Ascq]
Panthani, Matthew [Auteur]
Iowa State University [ISU]
Prévot, Geoffroy [Auteur]
Physico-chimie et dynamique des surfaces [INSP-E6]
Lhuillier, Emmanuel [Auteur]
Institut des Nanosciences de Paris [INSP]
Diener, Pascale [Auteur]
Physique - IEMN [PHYSIQUE - IEMN]
Grandidier, Bruno [Auteur]
Physique - IEMN [PHYSIQUE - IEMN]

Journal title :

Nanomaterials

Pages :

1128

Publisher :

MDPI

Publication date :

2022

ISSN :

2079-4991

English keyword(s) :

germanane
methylation
hydration
resistivity
thermal robustness

HAL domain(s) :

Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]

English abstract : [en]

Germanane is a two-dimensional material consisting of stacks of atomically thin germanium sheets. It’s easy and low-cost synthesis holds promise for the development of atomic-scale devices. However, to become an electronic-grade ...
Show more >Germanane is a two-dimensional material consisting of stacks of atomically thin germanium sheets. It’s easy and low-cost synthesis holds promise for the development of atomic-scale devices. However, to become an electronic-grade material, high-quality layered crystals with good chemical purity and stability are needed. To this end, we studied the electrical transport of annealed methyl-terminated germanane microcrystallites in both high vacuum and ultrahigh vacuum. Scanning electron microscopy of crystallites revealed two types of behavior which arise from the difference in the crystallite chemistry. While some crystallites are hydrated and oxidized, preventing the formation of good electrical contact, the four-point resistance of oxygen-free crystallites was measured with multiple tips scanning tunneling microscopy, yielding a bulk transport with resistivity smaller than 1 Ω·cm. When normalized by the crystallite thickness, the resistance compares well with the resistance of hydrogen-passivated germanane flakes found in the literature. Along with the high purity of the crystallites, a thermal stability of the resistance at 280 °C makes methyl-terminated germanane suitable for complementary metal oxide semiconductor back-end-of-line processes.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

ANR Project :

Croissance de germanene sur substrats à bande interdite
Centre expérimental pour l'étude des propriétés des nanodispositifs dans un large spectre du DC au moyen Infra-rouge.

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL