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Works Title Slow-Injection Growth of Seeded CdSe / CdS Nanorods with Unity Fluorescence Quantum Yield and Complete Shell to Core Energy Transfer Permalink
| Content Provider | Semantic Scholar |
|---|---|
| Author | Coropceanu, Igor Rossinelli Caram |
| Copyright Year | 2016 |
| Abstract | A two-step process has been developed for growing the shell of CdSe/CdS core/shell nanorods. The method combines an established fast-injection-based step to create the initial elongated shell with a second slowinjection growth that allows for a systematic variation of the shell thickness while maintaining a high degree of monodispersity at the batch level and enhancing the uniformity at the single-nanorod level. The second growth step resulted in nanorods exhibiting a fluorescence quantum yield up to 100% as well as effectively complete energy transfer from the shell to the core. This improvement suggests that the second step is associated with a strong suppression of the nonradiative channels operating both before and after the thermalization of the exciton. This hypothesis is supported by the suppression of a defect band, ubiquitous to CdSe-based nanocrystals after the second growth. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://cloudfront.escholarship.org/dist/prd/content/qt17q084b6/qt17q084b6.pdf?t=p84bpr |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
