期刊论文详细信息
Excitation spectroscopy of single quantum dots at tunable positive, neutral, and negative charge states | |
Article | |
关键词: PLANAR MICROCAVITY; INFORMATION; GENERATION; EXCITONS; PHOTONS; LIGHT; | |
DOI : 10.1103/PhysRevB.86.085306 | |
来源: SCIE |
【 摘 要 】
We present a comprehensive study of the optical transitions and selection rules of variably charged single self-assembled InAs/GaAs quantum dots. We apply high resolution polarization sensitive photoluminescence excitation spectroscopy to the same quantum dot for three different charge states: neutral and negatively or positively charged by one additional electron or hole. From the detailed analysis of the excitation spectra, a full understanding of the single-carrier energy levels and the interactions between carriers in these levels is extracted for the first time.
【 授权许可】
Free