Modulation of Conductivity and Contact Resistance of RuO Nanosheets Via Metal Nano-Particles Surface Decoration

Overview

Journal Nanomaterials (Basel)

Date 2021 Sep 28

PMID 34578760

Authors

Jongwon Kim

Seonhye Youn

Ju Young Baek

Dong Hwan Kim

Sumin Kim

Wooyoung Lee

Hee Jung Park

Juyoung Kim

Dong Won Chun

Sang-Shik Park

Jong Wook Roh

Jeongmin Kim

Affiliations

Soon will be listed here.

Abstract

We studied the variation in electrical conductivity of exfoliated RuO nanosheets and the modulation in the contact resistance of individual nanosheet devices using charge transfer doping effects based on surface metal nanoparticle decorations. The electrical conductivity in the monolayer and bilayer RuO nanosheets gradually increased due to the surface decoration of Cu, and subsequently Ag, nanoparticles. We obtained contact resistances between the nanosheet and electrodes using the four-point and two-point probe techniques. Moreover, the contact resistances decreased during the surface decoration processes. We established that the surface decoration of metal nanoparticles is a suitable method for external contact engineering and the modulation of the internal properties of nanomaterials.

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