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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 27 — Dec. 17, 2012
  • pp: 28494–28499

Current-pulse-induced enhancement of transient photodetective effect in tilted manganite film

H. Ni, K. Zhao, J. F. Xi, X. Feng, W. F. Xiang, S. Q. Zhao, Y.-C. Kong, and H. K. Wong  »View Author Affiliations


Optics Express, Vol. 20, Issue 27, pp. 28494-28499 (2012)
http://dx.doi.org/10.1364/OE.20.028494


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Abstract

A current-pulse-induced enhancement effect of transient photovoltage has been discovered in tilted manganite La2/3Ca1/3MnO3 film at room temperature. Here, by applying a pulsed current stimulus before pulse laser irradiation, we observed a significant enhancement of more than 50% in photovoltaic sensitivity. The current-pulse-induced photovoltaic enhancement can be tuned not only by the stimulating current value but also by the stimulating time. Such enhancement is time-sensitive and reproducible. This electrically induced effect, observed at room temperature, has both the benefit of a discovery in materials properties and the promise of applications for thin film manganites in photodetectors.

© 2012 OSA

OCIS Codes
(250.0250) Optoelectronics : Optoelectronics
(160.5335) Materials : Photosensitive materials
(310.6845) Thin films : Thin film devices and applications

ToC Category:
Optoelectronics

History
Original Manuscript: October 11, 2012
Revised Manuscript: November 19, 2012
Manuscript Accepted: November 19, 2012
Published: December 7, 2012

Citation
H. Ni, K. Zhao, J. F. Xi, X. Feng, W. F. Xiang, S. Q. Zhao, Y.-C. Kong, and H. K. Wong, "Current-pulse-induced enhancement of transient photodetective effect in tilted manganite film," Opt. Express 20, 28494-28499 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-27-28494


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