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Article Dans Une Revue Nonlinear Optics, Quantum Optics Année : 2010

Analysis of Electrical and Optical Properties of DNA:PDT-PSS Thin Films

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Vaidotas Kažukauskas
  • Fonction : Auteur
Andrius Arlauskas
  • Fonction : Auteur
Mindaugas Pranaitis
  • Fonction : Auteur
Oksana Krupka
  • Fonction : Auteur
François Kajzar
  • Fonction : Auteur
Zacaria Essaidi
  • Fonction : Auteur
Bouchta Sahraoui

Résumé

We report investigations of functionalized DNA:PEDT-PSS films. The electrical conductivity of the sample material at the room temperature was about (1–5)*10-10 Ω-1cm-1. The IV curves of the samples were linear and symmetrical in the region from the room temperature down to the liquid Nitrogen temperature. The thermal activation energy of the conductivity near the room temperature was about 0.033 eV independently on the applied bias. The weak carrier trapping was identified by the Thermally Stimulated Current method, proving the fast recombination of light-generated carriers. Notably, by constant light excitation a “bistable” photoconduction below the room temperature was evidenced. I.e., upon excitation by a white light a remarkable increase of the photocurrent could be observed below 145–155 K by cooling the samples. Meanwhile by heating the photosensitivity remained increased up to 235–245 K. Such phenomenon could presumably be attributed to the light-induced morphology changes of the sample material.

Domaines

Chimie
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Dates et versions

hal-03343372 , version 1 (14-09-2021)

Identifiants

  • HAL Id : hal-03343372 , version 1
  • OKINA : ua2026

Citer

Vaidotas Kažukauskas, Andrius Arlauskas, Mindaugas Pranaitis, Oksana Krupka, François Kajzar, et al.. Analysis of Electrical and Optical Properties of DNA:PDT-PSS Thin Films. Nonlinear Optics, Quantum Optics, 2010, 41 (1), pp.19 - 25. ⟨hal-03343372⟩
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