NANOCRYSTALLITES IN LUMINESCENT POROUS SILICON CHARACTERIZED BY RAMAN-SCATTERING

被引：6

作者：

GREGORA, I

CHAMPAGNON, B

HALIMAOUI, A

机构：

[1] UNIV LYON 1,PHYSICOCHIM MAT LUMINESCENTS LAB,CNRS,URA 442,F-69622 VILLEURBANNE,FRANCE

[2] FRANCE TELECOM,CTR NATL ETUD TELECOMMUN,F-38243 MEYLAN,FRANCE

来源：

JOURNAL OF LUMINESCENCE | 1993年 / 57卷 / 1-6期

关键词：

D O I：

10.1016/0022-2313(93)90109-Z

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Light-emitting porous silicon (PS) layers prepared on p- and p(+)-Si substrates were studied by Raman scattering in a broad frequency range. Dimensions of nanometric crystallites in PS were consistently estimated using new results from low-frequency scattering (LOFIRS) besides the implications from standard phonon confinement models. Whereas some fraction of a-Si phase in the p-type PS is detected, there is no clear spectral evidence of complex size distributions or of the presence of Si compounds.

引用

页码：73 / 76

页数：4

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