Abstract

We present a method for obtaining the average single-molecule biexciton lifetime from an ensemble of chromophores in solution. We apply this analysis to a series of core/shell CdSe/CdS quantum dot heterostructures with increasing shell thickness and find that the lifetime of the biexciton increases with increasing shell thickness, consistent with a simultaneous measurement of biexciton quantum yield.

© 2016 Optical Society of America

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