Electronic and luminescence properties of sputter-deposited TiO2 nanostructures

Yu Ming Chang, Dillip K. Mishra, Jyh-Ming Ting

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

TiO2 nanostructures are synthesized here by a radiofrequency magnetron sputter deposition technique using tin as a catalyst. The catalyst seeding and the sputter deposition are performed at ambient temperature. The growth of TiO2 is carried out in a mixed Ar + O2 and Ar + N2 atmosphere and is found to comprise pure anatase. The morphologies of the obtained TiO2 nanostructures are characterized using scanning electron microscopy. The electronic structures are investigated by X-ray absorption near-edge structure spectroscopy. The chemical compositions are analyzed using X-ray photoelectron spectra analysis, which indicates the presence of Ti3+. The luminescence properties are examined using cathodoluminescence spectroscopy. Five peaks are resolved from the luminescence data, indicating emissions of oxygen vacancies, F, F+, band-to-band emission and self-trapped excitons on TiO6.

Original languageEnglish
Pages (from-to)7511-7519
Number of pages9
JournalActa Materialia
Volume61
Issue number19
DOIs
Publication statusPublished - 2013 Nov 1

Fingerprint

Sputter deposition
Luminescence
Nanostructures
X ray absorption near edge structure spectroscopy
Catalysts
Cathodoluminescence
Tin
Oxygen vacancies
Photoelectrons
Excitons
Titanium dioxide
Spectrum analysis
Electronic structure
Spectroscopy
X rays
Scanning electron microscopy
Chemical analysis
Temperature
titanium dioxide
LDS 751

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

Cite this

Chang, Yu Ming ; Mishra, Dillip K. ; Ting, Jyh-Ming. / Electronic and luminescence properties of sputter-deposited TiO2 nanostructures. In: Acta Materialia. 2013 ; Vol. 61, No. 19. pp. 7511-7519.
@article{7a8b74eeddeb4004acff03c6d0a25703,
title = "Electronic and luminescence properties of sputter-deposited TiO2 nanostructures",
abstract = "TiO2 nanostructures are synthesized here by a radiofrequency magnetron sputter deposition technique using tin as a catalyst. The catalyst seeding and the sputter deposition are performed at ambient temperature. The growth of TiO2 is carried out in a mixed Ar + O2 and Ar + N2 atmosphere and is found to comprise pure anatase. The morphologies of the obtained TiO2 nanostructures are characterized using scanning electron microscopy. The electronic structures are investigated by X-ray absorption near-edge structure spectroscopy. The chemical compositions are analyzed using X-ray photoelectron spectra analysis, which indicates the presence of Ti3+. The luminescence properties are examined using cathodoluminescence spectroscopy. Five peaks are resolved from the luminescence data, indicating emissions of oxygen vacancies, F, F+, band-to-band emission and self-trapped excitons on TiO6.",
author = "Chang, {Yu Ming} and Mishra, {Dillip K.} and Jyh-Ming Ting",
year = "2013",
month = "11",
day = "1",
doi = "10.1016/j.actamat.2013.08.066",
language = "English",
volume = "61",
pages = "7511--7519",
journal = "Acta Materialia",
issn = "1359-6454",
publisher = "Elsevier Limited",
number = "19",

}

Electronic and luminescence properties of sputter-deposited TiO2 nanostructures. / Chang, Yu Ming; Mishra, Dillip K.; Ting, Jyh-Ming.

In: Acta Materialia, Vol. 61, No. 19, 01.11.2013, p. 7511-7519.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Electronic and luminescence properties of sputter-deposited TiO2 nanostructures

AU - Chang, Yu Ming

AU - Mishra, Dillip K.

AU - Ting, Jyh-Ming

PY - 2013/11/1

Y1 - 2013/11/1

N2 - TiO2 nanostructures are synthesized here by a radiofrequency magnetron sputter deposition technique using tin as a catalyst. The catalyst seeding and the sputter deposition are performed at ambient temperature. The growth of TiO2 is carried out in a mixed Ar + O2 and Ar + N2 atmosphere and is found to comprise pure anatase. The morphologies of the obtained TiO2 nanostructures are characterized using scanning electron microscopy. The electronic structures are investigated by X-ray absorption near-edge structure spectroscopy. The chemical compositions are analyzed using X-ray photoelectron spectra analysis, which indicates the presence of Ti3+. The luminescence properties are examined using cathodoluminescence spectroscopy. Five peaks are resolved from the luminescence data, indicating emissions of oxygen vacancies, F, F+, band-to-band emission and self-trapped excitons on TiO6.

AB - TiO2 nanostructures are synthesized here by a radiofrequency magnetron sputter deposition technique using tin as a catalyst. The catalyst seeding and the sputter deposition are performed at ambient temperature. The growth of TiO2 is carried out in a mixed Ar + O2 and Ar + N2 atmosphere and is found to comprise pure anatase. The morphologies of the obtained TiO2 nanostructures are characterized using scanning electron microscopy. The electronic structures are investigated by X-ray absorption near-edge structure spectroscopy. The chemical compositions are analyzed using X-ray photoelectron spectra analysis, which indicates the presence of Ti3+. The luminescence properties are examined using cathodoluminescence spectroscopy. Five peaks are resolved from the luminescence data, indicating emissions of oxygen vacancies, F, F+, band-to-band emission and self-trapped excitons on TiO6.

UR - http://www.scopus.com/inward/record.url?scp=84885670624&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84885670624&partnerID=8YFLogxK

U2 - 10.1016/j.actamat.2013.08.066

DO - 10.1016/j.actamat.2013.08.066

M3 - Article

VL - 61

SP - 7511

EP - 7519

JO - Acta Materialia

JF - Acta Materialia

SN - 1359-6454

IS - 19

ER -