A universal substrate for the nanoscale investigation of two-dimensional materials

• DOI: 10.1016/j.apsusc.2022.154585
• Publication Date: 2022-08-18T15:39:24Z
• Authors: Tuan-Hoang Tran; Raul D. Rodriguez; Dmitry Cheshev; Nelson E. Villa; Muhammad Awais Aslam; Jelena Pešić; Aleksandar Matković; Evgeniya Sheremet
• Keywords: Characterization

Since discovering two-dimensional materials, there has been a great interest in exploring, understanding, and taking advantage of their unique properties. Si/SiO2 is one the most used substrates for deposition characterization 2D materials due to its availability optical contrast. This work goes beyond conventional substrate introduces highly-ordered pyrolytic graphite (HOPG) as universal support investigating several properties such chemical temperature stability, intrinsic high flatness, reusability, electrical conductivity, ease use, availability, enhanced adhesion materials. We demonstrate this by analyzing with advanced atomic force microscopy methods, Raman photoluminescence spectroscopy hyperspectral imaging, scanning electron elementary analysis imaging. The strong HOPG allowed instant different GaSe, MoS2, Zn2In2S5, talc, h-BN. feat hard accomplish on SiO2 without polymer-assisted transfer. Moreover, interaction can strain deposited HOPG, giving localized changes reactivity, optical, electronic effect explored selective Ag strained regions activate photocatalytic reactions.