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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 31 — Nov. 1, 2011
  • pp: G23–G26

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

Zhi-qing Lu, Hao Ni, Kun Zhao, Wen-xiu Leng, Yu-Chau Kong, and Hong-Kuen Wong  »View Author Affiliations


Applied Optics, Vol. 50, Issue 31, pp. G23-G26 (2011)
http://dx.doi.org/10.1364/AO.50.000G23


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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

OCIS Codes
(040.5350) Detectors : Photovoltaic
(160.5690) Materials : Rare-earth-doped materials
(230.5160) Optical devices : Photodetectors
(320.4240) Ultrafast optics : Nanosecond phenomena
(310.6845) Thin films : Thin film devices and applications

History
Original Manuscript: June 27, 2011
Revised Manuscript: July 27, 2011
Manuscript Accepted: July 28, 2011
Published: September 16, 2011

Citation
Zhi-qing Lu, Hao Ni, Kun Zhao, Wen-xiu Leng, Yu-Chau Kong, and Hong-Kuen Wong, "Fast photovoltaic effects tuned by vicinal interface microstructure in manganite-based all-perovskite-oxide heterojunctions," Appl. Opt. 50, G23-G26 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-31-G23


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References

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