AI Article Synopsis
- Intercalation of elements like Ag, Bi, In, and others into two-dimensional α-MoO alters its properties significantly, affecting aspects such as acoustic phonons and elastic constants.
- The intercalation impacts material characteristics including electronic bandgaps, color changes, and structural properties, leading to optical effects such as color transformation from transparent to blue or orange.
- The study reveals complex relationships between material properties, showing correlations between in-plane stiffness and bandgap changes, as well as varying Raman modes linked to other characteristics like shear modulus and preferred crystal structures.
Article Abstract
Intercalation of several elements (Ag, Bi, In, Mo, Os, Pd, Pt, Rh, Ru, Sb, and W) is used to chemically alter a wide range of properties of two-dimensional layered α-MoO. Intercalation modifies acoustic phonons and elastic constants, as measured with Brillouin scattering. Intercalation alters electronic bandgaps, color, structure, Raman shifts, and electron binding energies. Optical chemochromism is demonstrated with intercalants changing the color of MoO from transparent to brilliant blue (In, Mo, Os, and Ru) and orange (Ag). Correlations are investigated among material properties. There is evidence that in-plane longitudinal stiffness correlates with changes in the bandgap, while various Raman modes appear to be connected to a variety of properties, including shear modulus , Mo binding energies, lattice constants, and the preferred crystal structure of the intercalant. The results indicate a surprising degree of complexity, suggesting competition among multiple distinct mechanisms and interactions involving specific intercalant species.
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| http://dx.doi.org/10.1021/acs.nanolett.4c03198 | DOI Listing |
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