Browsing by Author "B., Ullrich"

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    Intrinsic photoluminescence Stokes shift in semiconductors demonstrated by thin-film CdS formed with pulsed-laser deposition
    (Thin Solid Films, 2014-05-02) Ullrich, B.; Ariza-Flores, D.; Bhowmick, M.; B., Ullrich
    Abstract While not reported in the literature, by employing highly oriented, semi-insulating, thin-film CdS as test material, we present the observation of the intrinsic photoluminescence Stokes shift in a semiconductor. Analysis of Raman peaks, transmission, reflection, and photoluminescence shows that during band-to-band emission at room temperature one-to-two longitudinal optical phonons with energy of 39.8meV are emitted. The result is confirmed by the theoretically expected Huang–Rhys factor.