THEORY OF THE EXCITONIC EFFECT IN SOLID C-60

被引：7

作者：

JIANG, XD ^{[1
]}

GAN, ZZ ^{[1
]}

机构：

[1] BEIJING UNIV,NATL LAB MESOSCOP PHYS,BEIJING 100871,PEOPLES R CHINA

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.52.14254

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper a theory of the excitonic effect in solid C-60 is presented. We first develop an empirical pseudopotential method to calculate the energy levels of the C-60 molecule, which provides a good basis for the inspection of optical transitions in both the C-60 molecule and solid C-60. Then a theory is established to describe the characters of excitons in solid C-60. It is found that excitons in solid C-60 are intermediates between the Frenkel and Wannier types and the photoabsorptions in solid C-60 are mainly due to the excitonic transitions. The dielectric function of solid C-60 is calculated based on this theory and some relevant experimental results are discussed.

引用

页码：14254 / 14262

页数：9

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