Acta Phys. -Chim. Sin. ›› 2010, Vol. 26 ›› Issue (08): 2306-2310.doi: 10.3866/PKU.WHXB20100820

• PHYSICAL CHEMISTRY OF MATERIALS • Previous Articles     Next Articles

Synthesis, Morphology and Optical Properties of Mn Doped SnO2 One-Dimensional Nanostructures

CHI Jun-Hong, WANG Juan   

  1. Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, P. R. China
  • Received:2010-01-31 Revised:2010-03-30 Published:2010-07-23
  • Contact: CHI Jun-Hong E-mail:chijh@lzu.edu.cn
  • Supported by:

    The project was supported by the Young Scientists Fund of the National Natural Science Foundation of China (50901037) and National Fund for Fostering Talents of Basic Science of China (J0630313).

Abstract:

Mn doped SnO2 one-dimensional nanostructures (nanowires and nanobelts) were fabricated using catalyst assisted chemical vapor deposition (CVD). X-ray diffraction revealed a rutile structure of SnO2 in all the products. The morphology and the growth mechanism of the products were sensitive to the fabrication temperature and the concentration of the gaseous source materials. The growth mechanisms of the nanowires and nanobelts can be ascribed to vapor-liquid-solid (VLS) and vapor-solid (VS) processes, respectively. Four new peaks appeared at 500, 543, 694, and 720 cm-1 in the Raman spectra were attributed to the active infrared mode and the surface mode. A photolumines-cence peak was observed at 520 nm and the intensity of the peak was closely dependent on the concentration of oxygen vacancies.

Key words: Nanostructure, Mn doped SnO2, Chemical vapor deposition, Optical property, Growth mechanism

MSC2000: 

  • O644