Charge transport study of polymer light emitting diodes by Impedance spectroscopy

Manisha Bajpai; Ritu Srivastava; M. N. Kamalasanan; R. S. Tiwari; Suresh Chand

doi:10.1117/12.927417

15 October 2012 Charge transport study of polymer light emitting diodes by impedance spectroscopy

Manisha Bajpai, Ritu Srivastava, M. N. Kamalasanan, R. S. Tiwari, Suresh Chand

Proceedings Volume 8549, 16th International Workshop on Physics of Semiconductor Devices; 85492V (2012) https://doi.org/10.1117/12.927417
Event: 16th International Workshop on Physics of Semiconductor Devices, 2011, Kanpur, India

Abstract

The transport properties of polymer blend have been investigated by using impedance spectroscopy (IS) and current density –voltage (J-V) measurements based on a single-layer structure of ITO/polymer/Al. Impedance spectroscopy measurements showed that the device can be simulated by an equivalent parallel R-C network with a contact resistance R_s in series, the resistance R decreases along with bias voltage. The variation of the whole conductance and capacitance of the device with frequency and bias can be understood by the carrier response and the transit time dependence on the bias in the polymer film.

Citation Download Citation

Manisha Bajpai, Ritu Srivastava, M. N. Kamalasanan, R. S. Tiwari, and Suresh Chand "Charge transport study of polymer light emitting diodes by impedance spectroscopy", Proc. SPIE 8549, 16th International Workshop on Physics of Semiconductor Devices, 85492V (15 October 2012); https://doi.org/10.1117/12.927417

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