Two-dimensional charged-exciton complexes

Thilagam Lohe

    Research output: Contribution to journalComment/debate


    A simple method is used to calculate the binding energies of negatively and positively charged excitons (trions) in an ideal two-dimensional electron-hole system. The binding energy of the charged exciton is obtained as a function of the mass ratio σ=me/mh, using a mass-weighted coordinate system, thus avoiding tedious variational calculations. Our calculated values of the binding energies of charged excitons agree well with existing experimental and theoretical results. The calculations are extended to determine the binding energy of the two-dimensional charged-biexciton complex.
    Original languageEnglish
    Pages (from-to)7804-7808
    Number of pages5
    JournalPhysical Review B (Condensed Matter and Materials Physics)
    Issue number12
    Publication statusPublished - 1997


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