Many-body effects on modulation-doped InAs/GaAs quantum dots

Joo In Lee, Hyung Gyoo Lee, Eun Joo Shin, Sungkyu Yu, Dongho Kim, Gukhyung Ihm

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


The excitation intensity dependent photoluminescence spectra of various modulation-doped InAs/ GaAs quantum dots exhibit the band filling and band-gap renormalization. From the time-resolved photoluminescence spectra, in addition to the interaction of the carriers in quantum dots with the remote ionized impurities in a GaAs barrier, the screening due to the two-dimensional charges is found to mainly affect the carrier lifetime in the modulation-doped quantum dots.

Original languageEnglish
Pages (from-to)2885-2887
Number of pages3
JournalApplied Physics Letters
Issue number21
Publication statusPublished - 1997 May 26

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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