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Journal Articles European Physical Journal: Applied Physics Year : 2010

Transparent pentacene-based photoconductor: high photoconductivity effect

Aumeur El Amrani
  • Function : Author
Bruno Lucas
Firas Hijazi
  • Function : Author
Ahmad Skaiky
  • Function : Author
  • PersonId : 919419
Thierry Trigaud
  • Function : Author
  • PersonId : 922965
Matt Aldissi
  • Function : Author

Abstract

In this paper, the fabrication and characterisation of pentacene-based photoconductors using indium tin oxide electrodes obtained by ion beam sputtering are discussed. The photoelectric properties of pentacene under red (632 nm) and ultraviolet (365 nm) illuminations were investigated. We have shown that the photocurrent was dependent on the wavelength, bias voltage and illumination side of the device. Moreover, we have demonstrated with transparent electrodes that the top contact configuration yields better performance compared to the bottom contact configuration. We obtained a maximum photoconductivity gain of approximately 3 × 10 and a faster dynamic response when the photoconductor with top contact geometry was illuminated with ultraviolet light from the semiconductor side (top illumination), with a photoconductivity estimated at 10 cm.

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Electronics
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Dates and versions

hal-00618489 , version 1 (02-09-2011)

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Aumeur El Amrani, Bruno Lucas, Firas Hijazi, Ahmad Skaiky, Thierry Trigaud, et al.. Transparent pentacene-based photoconductor: high photoconductivity effect. European Physical Journal: Applied Physics, 2010, 51 (3), pp.33207. ⟨10.1051/epjap/2010109⟩. ⟨hal-00618489⟩
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