DocumentCode
732635
Title
Decoupling bulk and surface contributions in water-splitting photocatalysts by in situ ultrafast spectroscopy
Author
Appavoo, Kannatassen ; Liu, Mingzhao ; Black, Charles T. ; Sfeir, Matthew Y.
Author_Institution
Center for Functional Nanomater., Brookhaven Nat. Lab., Upton, NY, USA
fYear
2015
fDate
10-15 May 2015
Firstpage
1
Lastpage
2
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.
Keywords
catalysis; charge exchange; high-speed optical techniques; nanophotonics; nanostructured materials; optical control; photochemistry; photoelectrochemical cells; time resolved spectra; bias-controlled photoelectrochemical cell; charge transport; chemical reaction; electronic properties; incident-photon-to-current efficiency; nanostructured photocatalyst; ultrafast emission spectroscopy; water-splitting photocatalysts; Chemicals; II-VI semiconductor materials; Spectroscopy; Stimulated emission; Surface impedance; Ultrafast optics; Zinc oxide;
fLanguage
English
Publisher
ieee
Conference_Titel
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location
San Jose, CA
Type
conf
Filename
7183071
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