Efficient light emission from crystalline and amorphous silicon nanostructures

被引:51
作者
Kanemitsu, Y [1 ]
机构
[1] Nara Inst Sci & Technol, Grad Sch Mat Sci, Ikoma, Nara 6300101, Japan
关键词
silicon nanostructures; excitons; quantum confinement; spatial confinement;
D O I
10.1016/S0022-2313(02)00425-8
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Optical and electronic properties of crystalline silicon (c-Si) and amorphous silicon (a-Si) nanostructures are reviewed. The photoluminescence (PL) peak energies of c-Si and a-Si nanostructures are blueshifted from those of bulk c-Si and a-Si. The temperature dependence of the PL intensity is drastically improved in c-Si and a-Si nanostructures, and efficient luminescence from c-Si and a-Si nanostructures is observed at room temperature. The quantum confinement, spatial confinement, and surface effects on luminescence properties are summarized and the PL mechanism of silicon nanostructures is discussed. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:209 / 217
页数:9
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