6533b7d6fe1ef96bd12665be
RESEARCH PRODUCT
Phonon properties and photo-thermal oxidation of micromechanically exfoliated antimonene nanosheets
Josep Canet-ferrerGonzalo AbellánGonzalo AbellánMhamed AssebbanMhamed AssebbanMichael Fickertsubject
Thermal oxidationMaterials sciencePhononMechanical Engineering02 engineering and technologyGeneral Chemistry010402 general chemistry021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciences0104 chemical sciencesEspectroscòpia Ramansymbols.namesakeChemical engineeringMechanics of MaterialsHeat transfersymbolsGeneral Materials Science0210 nano-technologyRaman spectroscopyMaterialsdescription
Abstract Two-dimensional (2D) sheets of antimonene have attracted increasing attention due to their unique physical and chemical properties prompting potential for diverse applications. We present a facile method to prepare high-quality antimonene nanosheets (ANSs) by micromechanical exfoliation on SiO2/Si substrate. The temperature- and laser power-dependent Raman studies of exfoliated ANSs are reported and analyzed. It was found that both the out-of-plane A1g and the in-plane Eg modes red-shift linearly with increase in temperature, pointing towards anharmonic vibrations of the lattice. The thermal response of the ANSs on a SiO2/Si surface is also described using numerical simulation of the heat transfer to study their laser-induced oxidation mechanisms. These results offer a deeper understanding of the phonon properties and oxidation susceptibility of 2D antimonene paving the way for the development of antimonene-based technologies, such as electronic devices or photothermal cancer therapy.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-11-19 | 2D Materials |