Sangeeth, Suchand CS and Jaiswal, Manu and Menon, Reghu (2009) Correlation of morphology and charge transport in poly(3,4- thylenedioxythiophene)-polystyrenesulfonic acid (PEDOT-PSS) films. In: Journal of Physics: Condensed Matter, 21 (7). 072101-1.
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A wide variation in the charge transport properties of poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT-PSS) films is attributed to the degree of phase segregation of the excess insulating polyanion. The results indicate that the charge transport in PEDOT-PSS can vary from hopping to the critical regime of the metal-insulator transition, depending on the subtle details of morphology. The extent of electrical connectivity in the films, directly obtained from a temperature-dependent high-frequency transport study, indicates various limiting factors to the transport, which are correlated with the phase separation process. The low temperature magnetotransport further supports this morphology-dependent transport scenario.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Institute of Physics and IOP Publishing.|
|Department/Centre:||Division of Physical & Mathematical Sciences > Physics|
|Date Deposited:||12 Mar 2009 11:01|
|Last Modified:||19 Sep 2010 05:27|
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