Morphology and conductivity of PEDOT/PSS films studied by scanning-tunneling microscopy

S. Timpanaro; M. Kemerink; F.J. Touwslager; M.M. Kok, de; S. Schrader

doi:10.1016/j.cplett.2004.07.035

Morphology and conductivity of PEDOT/PSS films studied by scanning-tunneling microscopy

S. Timpanaro
, M. Kemerink
, F.J. Touwslager
, M.M. Kok, de
, S. Schrader

Materials to Optoelectronic Devices

Research output: Contribution to journal › Article › Academic › peer-review

263 Citations (Scopus)

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Abstract

The influence of sorbitol on the nanometer-scale morphology of poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS) is investigated by scanning–tunneling microscopy. In all investigated films relatively well-conducting PEDOT particles are observed, with typical sizes of 10–50 nm, that are embedded in a less conductive PSS matrix. Addition of sorbitol to the casting solution is found to enhance the clustering of the PEDOT particles into larger domains. The observed morphologies are correlated to the macroscopic conductivity of the films, using an intuitive model. In addition, the morphology in the top layer of the films was found to differ substantially from the bulk morphology.

Original language	English
Pages (from-to)	339-343
Journal	Chemical Physics Letters
Volume	394
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2004.07.035
Publication status	Published - 2004

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@article{8471915185774104bbb0ee4bb85c5167,

title = "Morphology and conductivity of PEDOT/PSS films studied by scanning-tunneling microscopy",

abstract = "The influence of sorbitol on the nanometer-scale morphology of poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS) is investigated by scanning–tunneling microscopy. In all investigated films relatively well-conducting PEDOT particles are observed, with typical sizes of 10–50 nm, that are embedded in a less conductive PSS matrix. Addition of sorbitol to the casting solution is found to enhance the clustering of the PEDOT particles into larger domains. The observed morphologies are correlated to the macroscopic conductivity of the films, using an intuitive model. In addition, the morphology in the top layer of the films was found to differ substantially from the bulk morphology.",

author = "S. Timpanaro and M. Kemerink and F.J. Touwslager and \{Kok, de\}, M.M. and S. Schrader",

year = "2004",

doi = "10.1016/j.cplett.2004.07.035",

language = "English",

volume = "394",

pages = "339--343",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier B.V.",

number = "4-6",

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TY - JOUR

T1 - Morphology and conductivity of PEDOT/PSS films studied by scanning-tunneling microscopy

AU - Timpanaro, S.

AU - Kemerink, M.

AU - Touwslager, F.J.

AU - Kok, de, M.M.

AU - Schrader, S.

PY - 2004

Y1 - 2004

N2 - The influence of sorbitol on the nanometer-scale morphology of poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS) is investigated by scanning–tunneling microscopy. In all investigated films relatively well-conducting PEDOT particles are observed, with typical sizes of 10–50 nm, that are embedded in a less conductive PSS matrix. Addition of sorbitol to the casting solution is found to enhance the clustering of the PEDOT particles into larger domains. The observed morphologies are correlated to the macroscopic conductivity of the films, using an intuitive model. In addition, the morphology in the top layer of the films was found to differ substantially from the bulk morphology.

AB - The influence of sorbitol on the nanometer-scale morphology of poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS) is investigated by scanning–tunneling microscopy. In all investigated films relatively well-conducting PEDOT particles are observed, with typical sizes of 10–50 nm, that are embedded in a less conductive PSS matrix. Addition of sorbitol to the casting solution is found to enhance the clustering of the PEDOT particles into larger domains. The observed morphologies are correlated to the macroscopic conductivity of the films, using an intuitive model. In addition, the morphology in the top layer of the films was found to differ substantially from the bulk morphology.

U2 - 10.1016/j.cplett.2004.07.035

DO - 10.1016/j.cplett.2004.07.035

M3 - Article

SN - 0009-2614

VL - 394

SP - 339

EP - 343

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 4-6

ER -

Morphology and conductivity of PEDOT/PSS films studied by scanning-tunneling microscopy

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