Photoluminescence signatures of negatively charged magnetoexcitons

James R. Chapman, Neil F Johnson, V. Nikos Nicopoulos

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The negatively charged quasi-two-dimensional exciton (X-) is studied numerically in the presence of a uniform perpendicular B field and various in-plane confinements. The corresponding photoluminescence (PL) spectra, including shakeup processes, are calculated. These calculations provide a quantitative explanation of recent experimental PL spectra. The photoluminescence signatures of charged excitons in quantum dots are also examined. Electron-hole pair distribution functions are calculated that show the structure of the charged exciton states (both ground and excited states). Increasing excitation reflects a competition between two effects: partial ionization of either one or two electrons.

Original languageEnglish (US)
Pages (from-to)1762-1773
Number of pages12
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume57
Issue number3
StatePublished - Jan 15 1998
Externally publishedYes

Fingerprint

Excitons
Photoluminescence
excitons
signatures
photoluminescence
Electrons
Excited states
Ground state
Semiconductor quantum dots
excitation
Ionization
Distribution functions
distribution functions
quantum dots
ionization
ground state
LDS 751
electrons

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Photoluminescence signatures of negatively charged magnetoexcitons. / Chapman, James R.; Johnson, Neil F; Nicopoulos, V. Nikos.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 57, No. 3, 15.01.1998, p. 1762-1773.

Research output: Contribution to journalArticle

Chapman, JR, Johnson, NF & Nicopoulos, VN 1998, 'Photoluminescence signatures of negatively charged magnetoexcitons', Physical Review B - Condensed Matter and Materials Physics, vol. 57, no. 3, pp. 1762-1773.
Chapman, James R. ; Johnson, Neil F ; Nicopoulos, V. Nikos. / Photoluminescence signatures of negatively charged magnetoexcitons. In: Physical Review B - Condensed Matter and Materials Physics. 1998 ; Vol. 57, No. 3. pp. 1762-1773.
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