Photoluminescence from SiO2 films containing Si nanocrystals and Er:: Effects of nanocrystalline size on the photoluminescence efficiency of Er3+

被引：240

作者：

Fujii, M ^{[1
]}

Yoshida, M

Hayashi, S

Yamamoto, K

机构：

[1] Kobe Univ, Fac Engn, Dept Elect & Elect Engn, Nada Ku, Kobe, Hyogo 6578501, Japan

[2] Kobe Univ, Grad Sch Sci & Technol, Div Elect & Elect Engn, Nada Ku, Kobe, Hyogo 6578501, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 1998年 / 84卷 / 08期

关键词：

D O I：

10.1063/1.368678

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

SiO2 films containing Si nanocrystals (nc-Si) and Er were prepared and their photoluminescence (PL) properties were studied. The samples exhibited PL peaks at 0.8 and 1.54 mu m, which could be assigned to the electron-hole recombination in nc-Si and the intra-4f transition in Er3+, respectively. Correlation between the intensities of the two PL peaks was studied as functions of the size of nc-Si, Er concentration, excitation power and excitation wavelength. It was found that the 1.54 mu m PL of Er3+ is strongly enhanced by incorporating nc-Si in films. Furthermore, the intensity of the 1.54 mu m peak was found to depend strongly on the size of the incorporated nc-Si. (C) 1998 American Institute of Physics. [S0021-8979(98)06320-8]

引用

页码：4525 / 4531

页数：7

共 21 条

[1] ELECTRONIC SPECTROSCOPY AND PHOTOPHYSICS OF SI NANOCRYSTALS - RELATIONSHIP TO BULK C-SI AND POROUS SI [J].