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Appl Opt. 2011 Nov 1;50(31):G23-6. doi: 10.1364/AO.50.000G23.

Fast photovoltaic effects tuned by vicinal interface microstructure in manganite-based all-perovskite-oxide heterojunctions.

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  • 1State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China.

Abstract

Interfacial microstructure tunable photovoltaic effects have been reported in heterojunctions of La(1-x)Ca(x)MnO(3) thin films and tilted or exact cut Nb-doped SrTiO(3) single crystal substrates under irradiation of UV pulsed laser. The photoresponse times of vicinal junctions and films were obviously faster than those of exact cut samples. The behaviors can be explained by the slope of the built-in electric field in the 10° tilted heterojunction and the interfacial terrace microstructure of La(1-x)Ca(x)MnO(3) films.

© 2011 Optical Society of America

PMID:
22086042
[PubMed]
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