Structural analysis and band gap tailoring of Fe3+-doped Zn-TiO2 nanoparticles

Salim Al-Harthi; Mubarak Al-Saadi; Imad Al-Omari; Husein Sitepu; Khalid Melghit; Issa Al-Amri; Ashraf T. Al-Hinai; Senoy Thomas

doi:10.1007/s00339-009-5508-4

Structural analysis and band gap tailoring of Fe³⁺-doped Zn-TiO₂ nanoparticles

Salim Al-Harthi^*, Mubarak Al-Saadi, Imad Al-Omari, Husein Sitepu, Khalid Melghit, Issa Al-Amri, Ashraf T. Al-Hinai, Senoy Thomas

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

We report on the analysis of morphology and electronic structure of Fe ³⁺-doped Zn-TiO₂ nanoparticles. Crystalline nature, phase, and preferred growth direction of the nanoparticles were all determined. Due to size effects and OH^--(TiO₄)ⁿ complexes, variation in the energy gap with metallic and semiconducting characters on the same sample was found. The variation in the energy gap decreased, and the bang gap decayed exponentially with Fe doping and independent of the supporting substrates. Simultaneous effect of the OH^- ligands on the electronic structure and the formation mechanism of nanorods and nanosheets as manifested by the rutile TiO₆ octahedra units edge- and corner-shared bonding was discussed.

Original language	English
Pages (from-to)	237-244
Number of pages	8
Journal	Applied Physics A: Materials Science and Processing
Volume	99
Issue number	1
DOIs	https://doi.org/10.1007/s00339-009-5508-4
Publication status	Published - Apr 2010

ASJC Scopus subject areas

General Chemistry
General Materials Science

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abstract = "We report on the analysis of morphology and electronic structure of Fe 3+-doped Zn-TiO2 nanoparticles. Crystalline nature, phase, and preferred growth direction of the nanoparticles were all determined. Due to size effects and OH--(TiO4)n complexes, variation in the energy gap with metallic and semiconducting characters on the same sample was found. The variation in the energy gap decreased, and the bang gap decayed exponentially with Fe doping and independent of the supporting substrates. Simultaneous effect of the OH- ligands on the electronic structure and the formation mechanism of nanorods and nanosheets as manifested by the rutile TiO6 octahedra units edge- and corner-shared bonding was discussed.",

author = "Salim Al-Harthi and Mubarak Al-Saadi and Imad Al-Omari and Husein Sitepu and Khalid Melghit and Issa Al-Amri and Al-Hinai, {Ashraf T.} and Senoy Thomas",

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AU - Al-Harthi, Salim

AU - Al-Saadi, Mubarak

AU - Al-Omari, Imad

AU - Sitepu, Husein

AU - Melghit, Khalid

AU - Al-Amri, Issa

AU - Al-Hinai, Ashraf T.

AU - Thomas, Senoy

PY - 2010/4

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N2 - We report on the analysis of morphology and electronic structure of Fe 3+-doped Zn-TiO2 nanoparticles. Crystalline nature, phase, and preferred growth direction of the nanoparticles were all determined. Due to size effects and OH--(TiO4)n complexes, variation in the energy gap with metallic and semiconducting characters on the same sample was found. The variation in the energy gap decreased, and the bang gap decayed exponentially with Fe doping and independent of the supporting substrates. Simultaneous effect of the OH- ligands on the electronic structure and the formation mechanism of nanorods and nanosheets as manifested by the rutile TiO6 octahedra units edge- and corner-shared bonding was discussed.

AB - We report on the analysis of morphology and electronic structure of Fe 3+-doped Zn-TiO2 nanoparticles. Crystalline nature, phase, and preferred growth direction of the nanoparticles were all determined. Due to size effects and OH--(TiO4)n complexes, variation in the energy gap with metallic and semiconducting characters on the same sample was found. The variation in the energy gap decreased, and the bang gap decayed exponentially with Fe doping and independent of the supporting substrates. Simultaneous effect of the OH- ligands on the electronic structure and the formation mechanism of nanorods and nanosheets as manifested by the rutile TiO6 octahedra units edge- and corner-shared bonding was discussed.

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Structural analysis and band gap tailoring of Fe³⁺-doped Zn-TiO₂ nanoparticles

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