Acta Phys. -Chim. Sin. ›› 1994, Vol. 10 ›› Issue (02): 103-106.doi: 10.3866/PKU.WHXB19940203

• Communication • Previous Articles     Next Articles

The Effect of Dielectric Confinement Effects on the Optica Properties of SnO2 Nanometer Particles

Yu Bao-Long, Wu Xiao-Chun, Zou Bing-Suo, Zhang Gui-Lan, Tang Guo-Qing, Chen Wen-Ju   

  1. Institute of Modern Optics, Nankai University, Tianjin 300071
  • Received:1993-10-15 Revised:1993-11-19 Published:1994-02-15
  • Contact: Yu Bao-Long


It is found that the SnO_2 nanometer particle modified by chemical methods on its surface with a layer of steric acid molecules has a significant red shift of optical absorption band edge and clear photoluminescence at room temperature, which is in contrast with that of bulk SnO_2 and naked SnO_2 nanometer particles. It is concluded that these results are related to the dielectric confinement effects on the SnO_2 nanometer particles surfaces.

Key words: Dielectric confinement effect, SnO2 nanometer particle, Surface modification