SIZE DEPENDENCE OF EXCITONS IN SILICON NANOCRYSTALS

被引：220

作者：

HILL, NA

WHALEY, KB

机构：

[1] Department of Chemistry, University of California, Berkeley

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.75.1130

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Two-particle calculations, which include the electron-hole Coulomb interaction nonperturbatively, are performed for excitons in surface passivated Si nanocrystals. The calculated exciton energies agree quantitatively with photoluminescence data. The exciton charge distributions differ markedly from those obtained in single-particle calculations. The two-particle calculations are compared with single-particle calculations which treat the Coulomb interaction perturbatively. The range of validity for the perturbative treatment of the Coulomb interaction is determined.

引用

页码：1130 / 1133

页数：4

共 18 条

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