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Proceedings Paper

Charge transport study of polymer light emitting diodes by impedance spectroscopy
Author(s): Manisha Bajpai; Ritu Srivastava; M. N. Kamalasanan; R. S. Tiwari; Suresh Chand
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Paper 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 Rs 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.

Paper Details

Date Published: 15 October 2012
PDF: 6 pages
Proc. SPIE 8549, 16th International Workshop on Physics of Semiconductor Devices, 85492V (15 October 2012); doi: 10.1117/12.927417
Show Author Affiliations
Manisha Bajpai, CSIR-National Physical Lab. (India)
Banaras Hindu Univ. (India)
Ritu Srivastava, CSIR-National Physical Lab. (India)
M. N. Kamalasanan, CSIR-National Physical Lab. (India)
R. S. Tiwari, Banaras Hindu Univ. (India)
Suresh Chand, CSIR-National Physical Lab. (India)


Published in SPIE Proceedings Vol. 8549:
16th International Workshop on Physics of Semiconductor Devices
Monica Katiyar; B. Mazhari; Y N Mohapatra, Editor(s)

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