Open AccessSTUDY ON THE SHORT RANGE STRUCTURES OF BINARY AMORPHOUS ARSENIC-SELENIUM SYSTEM BY EXAFS
Author(s) -
Wencai Wang,
Ge Sen-Lin,
Chen Yu
Publication year - 1986
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.35.1164
Subject(s) - arsenic , extended x ray absorption fine structure , selenium , materials science , amorphous solid , binary number , range (aeronautics) , crystallography , metallurgy , chemistry , physics , optics , absorption spectroscopy , composite material , arithmetic , mathematics
The EXAFS of amorphous semiconductor a-As2Se3, a-AsSe, a-As0.05 Se0.95 and a-As2Se3) after annealing at different temperatures lower than Tg are measured by 12 kW rotating anode X-ray diffraction equipment. Analyses of the determined radial structural functions shows that although the short range structure of a-As2Se3 is very similar to that for crystalline As2Se3, some changes take place in its radial structural function after annealing. The structural relaxation in a-As2Se3, quenched from melt, has also been observed. The short range structures for different components of As in binary As-Se system seem to be different.