Origin of the blue and red photoluminescence from aged porous silicon

	Origin of the blue and red photoluminescence from aged porous silicon
	Li P.; Wang G. Z.; Ma Y. R.
	1998
发表期刊	Physical Review B
ISSN	0163-1829
卷号	58 期号:7 页码:4057-4065
摘要	Two-peak photoluminescence (PL), blue and red, is obtained in the long-time aged porous silicon samples that were initially anodized under Ar+ 488 nm laser illumination. Static and dynamic photoluminescence, photoluminescence excitation, and Fourier transformation infrared absorption and reflection spectra are studied. It is found that the weight of blue PL increases with increasing the power intensity of the laser used during sample preparation. A good monoexponential microsecond decay over three decades with lifetime of about 5.3 CLS is reported. Infrared spectra are quantitatively studied to reveal the influence of the illuminating laser during anodization on the samples and the relationship between the oxidation states of the porous silicon and the blue and/or red photoluminescence. It is suggested that the blue PL in these aged samples comes from the nanometer c-Si core, while the red PL originates from the oxide surface.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/34503
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li P.,Wang G. Z.,Ma Y. R.. Origin of the blue and red photoluminescence from aged porous silicon[J]. Physical Review B,1998,58(7):4057-4065.
APA	Li P.,Wang G. Z.,&Ma Y. R..(1998).Origin of the blue and red photoluminescence from aged porous silicon.Physical Review B,58(7),4057-4065.
MLA	Li P.,et al."Origin of the blue and red photoluminescence from aged porous silicon".Physical Review B 58.7(1998):4057-4065.

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