Please use this identifier to cite or link to this item: https://doi.org/10.1021/ma900327d
DC FieldValue
dc.titleSalt-induced charge screening and significant conductivity enhancement of conducting poly(3,4-ethylenedioxythiophene): Poly(styrenesulfonate)
dc.contributor.authorXia, Y.
dc.contributor.authorOuyang, J.
dc.date.accessioned2014-10-07T09:53:41Z
dc.date.available2014-10-07T09:53:41Z
dc.date.issued2009-06-23
dc.identifier.citationXia, Y., Ouyang, J. (2009-06-23). Salt-induced charge screening and significant conductivity enhancement of conducting poly(3,4-ethylenedioxythiophene): Poly(styrenesulfonate). Macromolecules 42 (12) : 4141-4147. ScholarBank@NUS Repository. https://doi.org/10.1021/ma900327d
dc.identifier.issn00249297
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/86691
dc.description.abstractThis article reports a novel method to significantly enhance the conductivity of conducting poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) films through a treatment with aqueous solutions of various salts, such as copper(II) chloride. Conductivity enhancement by a factor of about 700 was observed. Many salts were investigated, and the conductivity enhancement depended on the softness parameter of cations and the concentration of the salts in solution. A salt like copper(II) chloride or indium chloride, whose cation has positive softness parameter, could enhance the conductivity of the PEDOT:PSS film by 2 orders in magnitude, while other salt like sodium chloride or magnesium chloride, whose cation has negative softness parameter, gave rise to negligible effect on the conductivity. The mechanism for the conductivity enhancement was studied by various characterizations. It is attributed to PSS loss from the PEDOT:PSS film, and conformational change of PEDOT chains resulted from the salt-induced charge screening between PEDOT and PSS. © 2009 American Chemical Society.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1021/ma900327d
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentMATERIALS SCIENCE AND ENGINEERING
dc.description.doi10.1021/ma900327d
dc.description.sourcetitleMacromolecules
dc.description.volume42
dc.description.issue12
dc.description.page4141-4147
dc.description.codenMAMOB
dc.identifier.isiut000267048200047
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

185
checked on Aug 10, 2022

WEB OF SCIENCETM
Citations

173
checked on Aug 10, 2022

Page view(s)

156
checked on Aug 4, 2022

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.