Advances in Condensed Matter Physics / 2013 / Article / Fig 6

Research Article

Nonradiative and Radiative Recombination in CdS Polycrystalline Structures

Figure 6

PL photoquenching characteristics: (a) comparison of MW-PC and PL transients varying intensity of background (bg) illumination. CdS surface PL intensity mapping in darkness (b), and under white light illumination (c), envisaged PL photoquenching effect, when PL integrated within spectral range from 450 nm to 750 nm. (d) Spatially integrated PL spectrum for initial scan in darkness (black solid curve) and for scan made during background illumination (gray dash curve). (e) A sketch of photoluminescence quenching by redistribution of recombination flows under bias illumination.

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