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

Hao Ni | Zendy; Kun Zhao | Zendy; Jianfeng Xi | Zendy; Xiaoyi Feng | Zendy; Wang Xiang | Zendy; Suoqi Zhao | Zendy; Y.-C. Kong | Zendy; H. K. Wong | Zendy

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

Author(s) -

Hao Ni,

Kun Zhao,

Jianfeng Xi,

Xiaoyi Feng,

Wang Xiang,

Suoqi Zhao,

Y.-C. Kong,

H. K. Wong

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.028494

Subject(s) - materials science , manganite , optoelectronics , optics , thin film , photovoltaic effect , current (fluid) , photodetector , irradiation , photovoltaic system , nanotechnology , electrical engineering , condensed matter physics , physics , engineering , ferromagnetism , nuclear physics

A current-pulse-induced enhancement effect of transient photovoltage has been discovered in tilted manganite La(2/3)Ca(1/3)MnO(3) 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.

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