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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 15 — May. 20, 2013
  • pp: 3473–3476

High-sensitivity SrTiO3 photodetectors with paralleled multiple interdigital electrode cells

Le Wang, Kui-juan Jin, Jie Xing, Chen Ge, Hui-bin Lu, Wen-jia Zhou, and Guo-zhen Yang  »View Author Affiliations


Applied Optics, Vol. 52, Issue 15, pp. 3473-3476 (2013)
http://dx.doi.org/10.1364/AO.52.003473


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Abstract

We report high-sensitivity SrTiO3 photoconductive detectors with multiple photoelectric cells connected in parallel. The photocurrent of the detectors increases significantly with an increase of the cell number. The photocurrent responsivity of the detector with three cells can reach 237mA/W at 10 V bias under illumination of the 375 nm laser, and the corresponding quantum efficiency is 77% at 10 V bias. Furthermore, a transient photovoltaic signal with a rise time of 490ps and a full width at half-maximum of 900ps is obtained. These results demonstrate that the present devices with further improvement of performance have great potential application in high-sensitivity and ultrafast ultraviolet photodetectors.

© 2013 Optical Society of America

OCIS Codes
(040.5150) Detectors : Photoconductivity
(040.5160) Detectors : Photodetectors
(040.7190) Detectors : Ultraviolet
(320.5390) Ultrafast optics : Picosecond phenomena

ToC Category:
Detectors

History
Original Manuscript: January 14, 2013
Revised Manuscript: March 29, 2013
Manuscript Accepted: April 19, 2013
Published: May 14, 2013

Citation
Le Wang, Kui-juan Jin, Jie Xing, Chen Ge, Hui-bin Lu, Wen-jia Zhou, and Guo-zhen Yang, "High-sensitivity SrTiO3 photodetectors with paralleled multiple interdigital electrode cells," Appl. Opt. 52, 3473-3476 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-15-3473

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