Kim, Jongwon Youn, Seonhye Baek, Ju Young Kim, Dong Hwan Kim, Sumin Lee, Wooyoung Park, Hee Jung Kim, Juyoung Chun, Dong Won Park, Sang-Shik Roh, Jong Wook Kim, Jeongmin 2024-01-19T14:00:47Z 2024-01-19T14:00:47Z 2022-01-25 2021-09 2079-4991 https://pubs.kist.re.kr/handle/201004/116489 We studied the variation in electrical conductivity of exfoliated RuO2 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 RuO2 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. English MDPI Modulation of Conductivity and Contact Resistance of RuO2 Nanosheets via Metal Nano-Particles Surface Decoration Article 10.3390/nano11092444 1 NANOMATERIALS, v.11, no.9 NANOMATERIALS 11 9 Y scie scopus 000701702100001 2-s2.0-85115073696 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Chemistry Science & Technology - Other Topics Materials Science Physics Article MOS2 LAYER GAS two-dimensional materials RuO2 nanosheets surface charge transfer electrical conductivity contact resistance