Science China Physics, Mechanics & Astronomy

, Volume 57, Issue 6, pp 1206–1208

Double-peaked decay of transient photovoltage in nanoporous ZnO/n-Si photodetector

Authors

  • Hao Liu
    • State Key Laboratory of Petroleum Resources and ProspectingChina University of Petroleum
    • Key Laboratory of Oil and Gas Terahertz Spectroscopy and Photoelectric DetectionChina Petroleum and Chemical Industry Federation (CPCIF)
  • Cheng Fu
    • Key Laboratory of Oil and Gas Terahertz Spectroscopy and Photoelectric DetectionChina Petroleum and Chemical Industry Federation (CPCIF)
    • State Key Laboratory of Petroleum Resources and ProspectingChina University of Petroleum
    • Key Laboratory of Oil and Gas Terahertz Spectroscopy and Photoelectric DetectionChina Petroleum and Chemical Industry Federation (CPCIF)
Letter

DOI: 10.1007/s11433-014-5459-4

Cite this article as:
Liu, H., Fu, C. & Zhao, K. Sci. China Phys. Mech. Astron. (2014) 57: 1206. doi:10.1007/s11433-014-5459-4

Abstract

In the present work, a nanoporous ZnO/n-Si structure has been proposed as a new type infrared photodetector. Triggered by one laser pulse with wavelength of 1064 nm, this structure exhibits a double-peak decay of transient photovoltage. Also, the time interval between these two peaks increases linearly with the increase of irradiated pulsed energy, indicating the promising application of this hetero-junction in photo-energy detection of infrared pulsed laser. A possible mechanism for this particular photoresponse has been discussed.

Keywords

ZnOsol-gelphotovoltagephotodetector
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© Science China Press and Springer-Verlag Berlin Heidelberg 2014