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Study of K‐absorption edge of selenium in the glassy semiconducting Se 100−x In x system
Author(s) -
Kumar Arvind,
Husain M.,
Swarup S.,
Nigam A. N.,
Kumar A.
Publication year - 1990
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.1300190106
Subject(s) - electronegativity , absorption edge , enhanced data rates for gsm evolution , absorption (acoustics) , selenium , covalent bond , k edge , materials science , crystallography , analytical chemistry (journal) , blueshift , chemistry , absorption spectroscopy , band gap , optics , photoluminescence , physics , organic chemistry , telecommunications , optoelectronics , computer science , metallurgy , composite material
The shift of the K‐absorption edge (δ E k ) was measured in Se 100‐ x In x binary system where 0 ≤ x ≤ 30. The K‐edge of Se progressively shifted toward the lower energy side as the In concentration increased from 0 to 15 at.‐%. However, at higher concentrations, the relative shift started to decrease. The results are in accordance with Pauling's concept of electronegativity and indicate that the nature of the bonds is iono‐covalent in these glasses, as found in many crystalline solids. The composition dependence of the edge shift is also discussed in terms of the structure of Se.