Charge Relaxation, Localization, and Separation in Colloidal Semiconductor Nanocrystals
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Charge separation in Pt-decorated CdSe@CdS octapod nanocrystals.
We synthesize colloidal CdSe@CdS octapod nanocrystals decorated with Pt domains, resulting in a metal-semiconductor heterostructure. We devise a protocol to control the growth of Pt on the CdS surface, realizing both a selective tipping and a non-selective coverage. Ultrafast optical spectroscopy, particularly femtosecond transient absorption, is employed to correlate the dynamics of optical ex...
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