PHOTOEMISSION STUDIES ON THE BLUE TUNGSTEN OXIDES | Zendy

XIE KAN | Zendy; QI SHANG-XUE | Zendy; Wu Naijuan | Zendy; Zhangda Lin | Zendy

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PHOTOEMISSION STUDIES ON THE BLUE TUNGSTEN OXIDES

Author(s) -

XIE KAN,

QI SHANG-XUE,

Wu Naijuan,

Zhangda Lin

Publication year - 1990

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.39.809

Subject(s) - valency , tungsten , valence (chemistry) , materials science , fermi level , tungsten oxide , oxide , oxygen , atomic physics , chemistry , metallurgy , physics , philosophy , linguistics , organic chemistry , electron , quantum mechanics

A series of studies were conducted for surface valency in blue tungsten oxides by using pho-toemission technique. Rusults show that, the blue tungsten oxide contains not only one kind of valency, but conbination of two valences, namely the conbination of W+5 and W+6, and also the process of argon ion eching and high temperature treatment all induce the loss of oxygen in W-chemical reduction process, which causes W transfer from high valence to low valence. Meanwhile, the density of state near Fermi level increases with the change from high valence to low valence.

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