Autors: Aleksandrova, M. P., Dobrikov, G. H., Rassovska, M. M.
Title: Impedance investigation of polymer layers for electroluminescent devices
Keywords: electroluminescent polymers, impedance spectroscopy, polymer lightemitting

Abstract: AC electrical properties of polymer light-emitting devices with poly(2-methoxy-5- (20-ethyl-hexyloxy)-1,4-phenylenevinylene) (MEH-PPV) and polyvinylcarbazole (PVK) layers are studied. Polymer nanosized films are deposited by the spin-coating method. 10 Frequency-dependent real and imaginary parts of the impedance are measured and fitted using RC equivalent circuits. Important parameters for such types of structures, like capacitance and contact resistance, are evaluated at different frequencies in the range from 100 Hz to 8MHz and bias voltages between 0 and 4V. Transit times of charge

References

    Issue

    International Journal of Polymeric Materials, vol. 61, pp. 978–984, 2012, United Kingdom, Taylor & Francis Group

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    Вид: публикация в международен форум