DIMENSIONS OF LUMINESCENT OXIDIZED AND POROUS SILICON STRUCTURES

被引:276
作者
SCHUPPLER, S [1 ]
FRIEDMAN, SL [1 ]
MARCUS, MA [1 ]
ADLER, DL [1 ]
XIE, YH [1 ]
ROSS, FM [1 ]
HARRIS, TD [1 ]
BROWN, WL [1 ]
CHABAL, YJ [1 ]
BRUS, LE [1 ]
CITRIN, PH [1 ]
机构
[1] UNIV CALIF BERKELEY,NATL CTR ELECTRON MICROSCOPY,BERKELEY,CA 94720
关键词
D O I
10.1103/PhysRevLett.72.2648
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
X-ray absorption measurements from H-passivated porous Si and from oxidized Si nanocrystals, combined with electron microscopy, ir absorption, alpha recoil, and luminescence emission data, provide a consistent structural picture of the species responsible for the visible luminescence observed in these samples. The mass-weighted average structures in por-Si are particles, not wires, with dimensions significantly smaller than previously reported or proposed.
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页码:2648 / 2651
页数:4
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