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Effects of p- and d-block metal co-substitution on the electronic structure and physicochemical properties of InMO4 (M = Nb and Ta) semiconductors

Title
Effects of p- and d-block metal co-substitution on the electronic structure and physicochemical properties of InMO4 (M = Nb and Ta) semiconductors
Authors
Lim S.T.Kim T.W.Hur S.G.Hwang S.-J.Park H.Choi W.Choy J.-H.
Ewha Authors
최진호황성주
SCOPUS Author ID
최진호scopus; 황성주scopus
Issue Date
2007
Journal Title
Chemical Physics Letters
ISSN
0009-2614JCR Link
Citation
vol. 434, no. 41370, pp. 251 - 255
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We have investigated the effect of the co-substitution of SnIV and NiII ions on the electronic structure and physicochemical property of InMO4 (M = Nb, Ta) semiconductors. The co-substitution leads to a red-shift of absorption edge as well as to an appearance of satellite peak below the absorption edge. Depending on the nature of valence orbitals, the substitution of p- and d-block elements results in the lowering of conduction band and the formation of impurity states in the middle of bandgap, respectively. Such a band modification makes the photocatalytic activity of InMO4 improved against the photodegradation of organic molecules. © 2006 Elsevier B.V. All rights reserved.
DOI
10.1016/j.cplett.2006.12.030
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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