%0 Journal Article %T X-ray Photoemission Spectroscopy Studies of the Semiconducting Molybdenum Purple Bronze Bi0.2MoO3 %A Rui XIONG %A Chang LUO %A Wufeng TANG %A Jing SHI %A
Rui %A XIONG %A Chang %A LUO %A Wufeng %A TANG %A Jing %A SHI %J 材料科学技术学报 %D 2006 %I %X The electronic structure of the quasi-two-dimensional (2D) semiconducting molybdenum purple bronze Bi0.2MoO3 was presented by X-ray photoemission spectroscopy. The valence band of Bi0.2MoO3 is made up of Opπ nonbonding level, π and σ bonding bands. The peak at 1.5 eV and the shoulder at 0.5 eV in the forbidden band may be formed from the non-bonding dxy orbitals of some Mo atoms. The O1s core-level spectrum demonstrates the presence of two inequivalent bonds of oxygen ions in Bi0.2MoO3. Bi4f core-level spectrum shows two bonding characters of Bi atoms in bismuth molybdenum single crystal. Mo3d core-level spectrum confirms two kinds of valence states of Molybdenum (Mo 5 and Mo 6). Ar ion irradiation induces more significant distortion of MoO6 octahedra. %K Bi0 %K 2MoO3 single crystal %K X-ray photoemission spectroscopy %K Core-electronspectrum
X射线光电效应光谱学 %K 半导体 %K Bi0.2MoO3 %K 电子光谱 %K 钼 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=855A4BBCDFF6391B0865675913F750B6&yid=37904DC365DD7266&vid=BC12EA701C895178&iid=E158A972A605785F&sid=036D726259190A01&eid=D397660E39E3E461&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=25