| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1520632 | Materials Chemistry and Physics | 2016 | 5 Pages |
•Long-lasting low-temperature photoluminescence decay in nano-CdS/PVA is observed.•Characteristic time about 1.7 s for photoluminescence decay is measured.•Accumulation of photo-excited carriers in traps within the PVA is shown.•Transfer of the excitation from PVA to CdS nanoparticles is shown.
We report on the observation of the long-lasting low-temperature photoluminescence decay in the hybrid system nano-CdS/polyvinyl alcohol with a characteristic time of about 1.7 s. The origin of the phosphorescence is ascribed to the accumulation of photo-excited excitons in the traps within the polymeric matrix with subsequent transfer of the excitation to the embedded CdS nanoparticles.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide
