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

Seung Tae Lim, Tae Woo Kim, Su Gil Hur, Seong Ju Hwang, Hyunwoong Park, Wonyong Choi, Jin Ho Choy

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16 Citations (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.

Original languageEnglish
Pages (from-to)251-255
Number of pages5
JournalChemical Physics Letters
Volume434
Issue number4-6
DOIs
Publication statusPublished - 2007 Feb 5

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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