Light Harvesting Semiconductor Core-Shell Nanocrystals: Ultrafast Charge Transport Dynamics of CdSe-ZnS Quantum Dots

@inproceedings{Makhal2009LightHS,
  title={Light Harvesting Semiconductor Core-Shell Nanocrystals: Ultrafast Charge Transport Dynamics of CdSe-ZnS Quantum Dots},
  author={Abhinandan Makhal and Hongdan Yan and P Lemmens and Samir Kumar Pal},
  year={2009}
}
Capping or functionalization of semiconductor quantum dots (QDs) is unavoidable for their photostability in practical use including sensitizer and biological tagging agents. However, the efficiency of the electron/hole transport from the photoexcited QDs to the external environments across the capping shell is not well-understood. In this study we report on the femtosecond carrier dynamics of core-shell type CdSe-ZnS semiconductor QDs of various sizes. Steady-state spectroscopic studies… CONTINUE READING