Optical spectra and exciton state in vertically stacked self-assembled quantum discs


Autoria(s): Liu JL; Li SS; Niu ZC; Yang FH; Feng SL
Data(s)

2003

Resumo

We study the oscillator strengths of the optical transitions of the vertically stacked self-assembled InAs quantum discs. The oscillator strengths change evidently when the two quantum discs are far apart from each other. A vertically applied electric held affects the oscillator strengths severely, while the oscillator strengths change slowly as the radius of one disc increases. We also studied the excitonic energy of the system, including the Coulomb interaction. The excitonic energy increases with the increasing radius of one disc, but decreases as a vertically applied electric field increases.

Identificador

http://ir.semi.ac.cn/handle/172111/11510

http://www.irgrid.ac.cn/handle/1471x/64725

Idioma(s)

英语

Fonte

Liu JL; Li SS; Niu ZC; Yang FH; Feng SL .Optical spectra and exciton state in vertically stacked self-assembled quantum discs ,CHINESE PHYSICS LETTERS,2003 ,20 (7):1120-1123

Palavras-Chave #半导体物理 #DOTS #SHAPE #FIELD
Tipo

期刊论文