Influence of electric field on spectral positions of dislocation-related luminescence peaks in silicon: Stark effect

T. Mchedlidze, T. Arguirov, M. Kittler, T. Hoang, J. Holleman, Jurriaan Schmitz

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    Spectral positions of dislocation-related luminescence (DRL) peaks from dislocation loops located close to a p-n junction in silicon were shifted by carrier injection level. We suppose that the excitonic transition energies of DRL were reduced by an effective electric field at dislocation sites due to quadratic Stark effect (QSE). The field results from built-in junction field reduced by carrier injection. A constant of the shift, obtained from fitting of the data with QSE equation, was 0.0186 meV/(kV/cm)2. The effect can explain the diversity of DRL spectra in silicon and may allow tuning and modulation of DRL for future photonic applications.
    Original languageUndefined
    Article number10.1063/1.2813024
    Pages (from-to)201113
    Number of pages3
    JournalApplied physics letters
    Issue number1/20
    Publication statusPublished - 12 Nov 2007


    • SC-SBLE: Silicon-based Light Emitters
    • EWI-11609
    • METIS-245878
    • IR-62070

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