| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1483516 | Journal of Non-Crystalline Solids | 2010 | 5 Pages |
Abstract
Highly luminescent CdSeS quantum dots have been assembled in polymethyl methacrylate transparent composite (abbreviated as QDs/PMMA) through a prepolymerization method. The spectroscopic and kinetic studies of green-emitting CdSeS QDs dispersed in PMMA matrix are investigated by use of femtosecond laser excitation compared with that suspended in toluene and close-packed coated thin film on silica substrate. Steady-state spectroscopy of QDs/PMMA is blue-shift 2 nm than that of dispersed in toluene but is red-shift about 9 nm than that of close-packed thin film. The kinetic characterization interpreting peak shift and difference between them is the change of relative intensity between band-edge and trapping state.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Wenzhi Wu, Wei Qu, Hong-An Ye, Zhiren Zheng, Yanqiang Yang,