In-Plane Anisotropic Raman Response and Electrical Conductivity with Robust Electron–Photon and Electron–Phonon Interactions of Air Stable MoO₂ Nanosheets

Molybdenum Carbide‐Oxide Heterostructures: In Situ Surface Reconfiguration toward Efficient Electrocatalytic Hydrogen Evolution

“…In the meantime, the band associated with the Mo−O 1 vibration of MoO 2 appears at 747 cm −1 . Other bands at 495, 458, 340 and 192 cm −1 are assigned to MoO 2 phonon vibrations . It is confirmed that the MoO 3 on Mo 2 C‐MoO x /CC has been in situ reduced into MoO 2 .…”

In-plane anisotropic electronics based on low-symmetry 2D materials: progress and prospects

“…43,123 2.9 Others MoO 2 crystallizes in the monoclinic phase with the space group of P2 1 /c and its crystal structure is distorted to the rutile-type. 57 This is because O atoms are closely packed into octahedrons and Mo atoms occupy half the space of the octahedral void, which results in the edge-sharing MoO 6 octahedrons connected with each other and forms the distorted rutile structure. Although MoO 2 has a typical wide band gap, the Mo-Mo metallic bonds give rise to metallic transport properties.…”

Anomalous polarization pattern evolution of Raman modes in few-layer ReS2 by angle-resolved polarized Raman spectroscopy

“…Few non-zero elements in these materials make the ARPRS analysis simple and easy to determine the crystal orientation. 16,24,27 However, the coupling between Raman elements due to the phase factors, the out-of-plane vibration features with the thickness, and the contribution of both diagonal and off-diagonal Raman elements to the ARPRS are less explored. Recently, low-symmetry of ReS 2 has attracted a lot of attention in the anisotropy research with its highly anisotropic photoluminescence, absorption, and conductivity for optoelectronic devices due to the direct bandgap without layer dependence.…”