Microstructure and optical properties of Sm 3+ doped TiO 2 thin films by oblique angle deposition

Xiudi Xiao, Lei Miao, Gang Xu, Jianda Shao, Zhengxiu Fan

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

TiO 2: 2%Sm 3+ thin films were prepared by oblique angle deposition. X-ray diffraction (XRD), scanning electron microscope (SEM), UV-Vis-NIR spectrophotometer, fluorescence spectrophotometer was employed to characterize the structure and optical properties of TiO 2: 2%Sm 3+ thin films. The results indicated that these thin films were with anisotropic columnar structure before and after calcination. The optical anisotropy measured by transmission difference (Tp-Ts) at 500nm was increasing from 8% to 33% with calcination. Under ultraviolet excitation (?ex =330nm) and commercial 365nm UV lamp excitation, these TiO 2: Sm 3+ thin films show intense 4G5/2→ 6H 5/2, 7/2, 9/2 emissions of Sm 3+. The polarized photoluminescence was anticipated in the anisotropic thin films.

Original languageEnglish
Pages (from-to)201-207
Number of pages7
JournalIntegrated Ferroelectrics
Volume129
Issue number1
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event9th Chinese International Nanoscience and Technology Symposium and the Nano-Products Exposition - Xian, China
Duration: 2010 Nov 152010 Nov 19

Keywords

  • Anistropy
  • Photoluminescence
  • TiO Sm STF

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Control and Systems Engineering
  • Ceramics and Composites
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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