Electronic Structures of the Vanadium-Intercalated and Substitutionally Doped Transition-Metal Dichalcogenides Ti<sub><i>x</i></sub>V<sub><i>y</i></sub>Se<sub>2</sub>
A. S. Shkvarin, Yury M. Yarmoshenko, А. И. Меренцов, Е. Г. Шкварина, А. Ф. Губкин, Igor Píš, Silvia Nappini, Federica Bondino, И.А. Бобриков, A. N. Titov
Abstract
The electronic structures of V-intercalated TiSe2 and substitutionally doped dichalcogenides Ti1–xVxSe2 have been studied using soft X-ray photoelectron, resonant photoelectron, and absorption spectroscopies. In the case of the substitution of Ti by V, the formation of coherently oriented structural fragments VSe2 and TiSe2 is observed and a small charge transfer between these fragments is found. Intercalation of the V atoms into TiSe2 leads to charge transfer from the V atoms to the Ti atoms with the formation of covalent complexes Ti–Se3–V–Se3–Ti.
Topics & Concepts
ChemistryVanadiumTransition metalDopingCrystallographyMetalElectronic structureInorganic compoundInorganic chemistryCondensed matter physicsComputational chemistryBiochemistryOrganic chemistryCatalysisPhysicsInorganic Chemistry and Materials2D Materials and ApplicationsChalcogenide Semiconductor Thin Films