Changes in the electronic properties of Si nanocrystals as a function of particle size

被引:386
作者
van Buuren, T [1 ]
Dinh, LN [1 ]
Chase, LL [1 ]
Siekhaus, WJ [1 ]
Terminello, LJ [1 ]
机构
[1] Univ Calif Lawrence Livermore Natl Lab, Dept Chem & Mat Sci, Livermore, CA 94550 USA
关键词
D O I
10.1103/PhysRevLett.80.3803
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
X-ray absorption and photoemission spectra have been used to measure the band edges of silicon nanocrystals with average diameters ranging from 1 to 5 nm. We compare the experimentally measured band edges to recent electronic structure calculations and find that the experimentally measured band gap is smaller than that predicted by theory.
引用
收藏
页码:3803 / 3806
页数:4
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