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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Phenomenological Interpretation of Impedance/Capacitance Measurements on Organic Electronic Devices Under Illumination

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Santos, L. F. [1] ; Pereira, C. J. [1]
Total Authors: 2
[1] Univ Estadual Paulista UNESP, Dept Fis, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: MOLECULAR CRYSTALS AND LIQUID CRYSTALS; v. 589, n. 1, p. 74-82, JAN 22 2014.
Web of Science Citations: 0

The electrical properties of organic electronic devices based on poly(2-methoxy-5-(3',7'-dimethyloctyloxy)-1,-phenylene vinylene) as the active layer were studied under light-excitation at different wavelength ranges and intensities, with particular focus on the frequency-response of the complex capacitance. To interpret the obtained results, an adaptation of abrupt cut-off frequency analysis of the capacitance data was developed considering the displacement of the quasi-Fermi levels due to the incidence of light. The application of such formalism allowed the determination of the position of the bulk Fermi level, the Debye length associated to the photo-generated charge-carriers and the displacement on the quasi-Fermi levels due to illumination. (AU)

FAPESP's process: 09/16052-4 - Development and characterization of organic transistors comprising conjugated polymers and ionic conducting polymers
Grantee:Lucas Fugikawa Santos
Support type: Regular Research Grants