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Conduction behavior of doped polyaniline films at high current density regime

1999; Wiley; Volume: 37; Issue: 20 Linguagem: Inglês

10.1002/(sici)1099-0488(19991015)37

1099-0488

Hai Sheng Xu, Z.‐Y. Cheng, Q. M. Zhang, Pen-Cheng Wang, Alan G. MacDiarmid,

Dielectric materials and actuators

Journal of Polymer Science Part B: Polymer PhysicsVolume 37, Issue 20 p. 2845-2850 Article Conduction behavior of doped polyaniline films at high current density regime Hai-Sheng Xu, Corresponding Author Hai-Sheng Xu hxx3@edu.psu Materials Research Laboratory, Pennsylvania State University, University Park, Pennsylvania 16802Materials Research Laboratory, Pennsylvania State University, University Park, Pennsylvania 16802Search for more papers by this authorZ.-Y. Cheng, Z.-Y. Cheng Materials Research Laboratory, Pennsylvania State University, University Park, Pennsylvania 16802Search for more papers by this authorQ. M. Zhang, Q. M. Zhang Materials Research Laboratory, Pennsylvania State University, University Park, Pennsylvania 16802Search for more papers by this authorPen-Cheng Wang, Pen-Cheng Wang Chemistry Department, University of Pennsylvania, Philadelphia, Pennsylvania 19104Search for more papers by this authorAlan G. Macdiarmid, Alan G. Macdiarmid Chemistry Department, University of Pennsylvania, Philadelphia, Pennsylvania 19104Search for more papers by this author Hai-Sheng Xu, Corresponding Author Hai-Sheng Xu hxx3@edu.psu Materials Research Laboratory, Pennsylvania State University, University Park, Pennsylvania 16802Materials Research Laboratory, Pennsylvania State University, University Park, Pennsylvania 16802Search for more papers by this authorZ.-Y. Cheng, Z.-Y. Cheng Materials Research Laboratory, Pennsylvania State University, University Park, Pennsylvania 16802Search for more papers by this authorQ. M. Zhang, Q. M. Zhang Materials Research Laboratory, Pennsylvania State University, University Park, Pennsylvania 16802Search for more papers by this authorPen-Cheng Wang, Pen-Cheng Wang Chemistry Department, University of Pennsylvania, Philadelphia, Pennsylvania 19104Search for more papers by this authorAlan G. Macdiarmid, Alan G. Macdiarmid Chemistry Department, University of Pennsylvania, Philadelphia, Pennsylvania 19104Search for more papers by this author First published: 09 September 1999 https://doi.org/10.1002/(SICI)1099-0488(19991015)37:20 3.0.CO;2-WCitations: 15AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract The conduction behavior at high current density at room temperature and above of polyaniline (PANI) films doped with HCl and camphor sulfonic acid (HCSA), respectively, is reported. It is found that the current density deviates strongly from the linear relation with the electric field in high current density region, and a saturation of the current density is observed. The maximum current density Jm seems to be proportional to the conductivity of the sample and hence, for PANI doped with HCl, Jm is about 200 A/cm2, whereas for HCSA doped samples, Jm can reach more than 1,200 A/cm2. The saturation of current density is interpreted as being caused by space charge accumulation at the insulating barrier regions and a dedoping effect in the conduction domains due to the detraping of the ions under high fields. © 1999 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 37: 2845–2850, 1999 Citing Literature Volume37, Issue2015 October 1999Pages 2845-2850 RelatedInformation