Photoluminescence and Raman studies on Ge-based complexes in Si-doped GaInP epilayers grown on Germanium

被引:2
|
作者
He, W. [1 ,2 ,3 ]
Lu, S. L. [1 ]
Jiang, D. S. [3 ]
Dong, J. R. [1 ]
Tackeuchi, A. [4 ]
Yang, H. [1 ]
机构
[1] Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Key Lab Nanodevices & Applicat, Suzhou 215123, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
[3] Chinese Acad Sci, Inst Semicond, Beijing 100083, Peoples R China
[4] Waseda Univ, Dept Phys, Tokyo 1698555, Japan
关键词
VAPOR-PHASE EPITAXY; GALLIUM-ARSENIDE; SOLAR-CELLS; GAAS; HETEROSTRUCTURES; DIFFUSION;
D O I
10.1063/1.4737611
中图分类号
O59 [应用物理学];
学科分类号
摘要
Photoluminescence and Raman scattering measurements were performed on Si-doped GaInP grown on Ge. The deep broadband photoluminescence (PL) emission centered around 1.4 eV exhibits a strong dependence of strength on Si dopants, which is suggested to be due to [Ge-(Ga,Ge-In)-V-(Ga,V-In)] complexes. A strong evidence to support the existence of [Ge-(Ga,Ge-In)-Si-(Ga,Si-In)] complexes in Si-doped GaInP is shown by Raman spectra. The blue shift of broad PL emission and the increased recombination life time with increased temperatures were explained by the competition between [Ge-(Ga,Ge-In)-V-(Ga,V-In)] and [Ge-(Ga,Ge-In)-Si-(Ga,Si-In)] complexes. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4737611]
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页数:3
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