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dc electrical conduction and morphology of poly(3-octylthiophene) films

IR@NPL: CSIR-National Physical Laboratory, New Delhi

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Title dc electrical conduction and morphology of poly(3-octylthiophene) films
 
Creator kumar, J.
singh, R. K.
Chand, S.
Kumar, V.
Rastogi, R. C.
Singh, R.
 
Subject Applied Physics/Condensed Matter
 
Description The surface morphology and electrical conductivity of poly(3-octylthiophene) (P3OT) films, in both their pristine and doped states, have been studied by scanning electron microscopy and by measuring the conductivity at room temperature and the variation of conductivity with temperature in the range 10-300 K. Pristine P3OT film exhibits a mat-type structure whereas ferric chloride doped P3OT film shows conducting domains in the range 40-80 nm. The room temperature dc conductivities of pristine and doped P3OT films are similar to 1 x 10(-8) S cm(-1) and 8.2 x 10(-4) S cm(-1), respectively. The temperature dependence of dc conductivity in the region 77-300 K, where hopping conduction dominates, is well described by Mott's three-dimensional variable range hopping transport.
 
Publisher IOP Publishing
 
Date 2006-01
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://npl.csircentral.net/2442/1/29.pdf
kumar, J. and singh, R. K. and Chand, S. and Kumar, V. and Rastogi, R. C. and Singh, R. (2006) dc electrical conduction and morphology of poly(3-octylthiophene) films. Journal of Physics D: Applied Physics, 39 (1). pp. 196-202. ISSN 0022-3727
 
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