Electronic and luminescence properties of sputter-deposited TiO2 nanostructures

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

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)

摘要

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.

原文English
頁(從 - 到)7511-7519
頁數9
期刊Acta Materialia
61
發行號19
DOIs
出版狀態Published - 2013 十一月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 陶瓷和複合材料
  • 聚合物和塑料
  • 金屬和合金

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