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Conferences > CLEO_QELS > 2015 > FM2B > FM2B.5

Decoupling Bulk and Surface Contributions in Water-Splitting Photocatalysts by In Situ Ultrafast Spectroscopy

Kannatassen Appavoo, Mingzhao Liu, Charles T. Black, and Matthew Y. Sfeir

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Abstract

By performing ultrafast emission spectroscopy in an operating, bias-controlled photoelectrochemical cell, we distinguish between bulk (charge transport) and surface (chemical reaction) recombination processes in a nanostructured photocatalyst and correlate its electronic properties directly with its incident-photon-to-current efficiency.

© 2015 Optical Society of America

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