论文信息 - Ultrafast supercontinuum spectroscopy of multiple exciton states in lead chalcogenide nanorods and nanocrystals

Ultrafast supercontinuum spectroscopy of multiple exciton states in lead chalcogenide nanorods and nanocrystals

We examine the multiple exciton population dynamics in lead chalcogenide nanostructures by ultrafast supercontinuum transient absorption. Carrier multiplication is revealed in the limit of low absorbed photon number, along with biexciton dynamics.

[1] G. Lyon. Al , 2014 .

[2] C. W. Wong,et al. Ultrafast supercontinuum spectroscopy of carrier multiplication and biexcitonic effects in excited states of PbS quantum dots. , 2011, Nano letters.

[3] A. Nozik. Nanoscience and nanostructures for photovoltaics and solar fuels. , 2010, Nano letters.

[4] F. Wise,et al. Synthesis of monodisperse PbSe nanorods: a case for oriented attachment. , 2010, Journal of the American Chemical Society.

[5] M. Beard,et al. Highly efficient multiple exciton generation in colloidal PbSe and PbS quantum dots. , 2005, Nano letters.

[6] R. Schaller,et al. High efficiency carrier multiplication in PbSe nanocrystals: implications for solar energy conversion. , 2004, Physical review letters.

[7] Frank W. Wise,et al. Lead Salt Quantum Dots: The Limit of Strong Quantum Confinement , 2001 .