SIMULTANEOUS MICROPHOTOLUMINESCENCE AND MICRO-RAMAN SCATTERING IN POROUS SILICON

被引：4

作者：

MONIN, Y

SAVIOT, L

CHAMPAGNON, B

ESNOUF, C

HALIMAOUT, A

机构：

[1] INST NATL SCI APPL,MET PHYS & PHYS MAT GRP,UA 341,F-69621 VILLEURBANNE,FRANCE

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

来源：

THIN SOLID FILMS | 1995年 / 255卷 / 1-2期

关键词：

LUMINESCENCE; RAMAN SCATTERING; SILICON;

D O I：

10.1016/0040-6090(94)05681-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Light-emitting porous silicon (PS) layers prepared by anodic oxidation on p-substrates have been studied by micro-Raman scattering and microphotoluminescence spectroscopy simultaneously. A complementary study by transmission electron microscopy has been made. A change in microscopic structure with depth is observed as well as a red shift of the luminescence as the focalized laser beam approaches the bulk substrate. This result pointed out a correlation between the structural depth inhomogeneity and optical properties of porous silicon in agreement with quantum size effects.

引用

页码：188 / 190

页数：3

共 18 条

[1] THE ORIGIN OF VISIBLE LUMINESCENCE FROM POROUS SILICON - A NEW INTERPRETATION [J].