Journal article
Structure of thin films of poly(3,4-ethylenedioxythiophene)
Thin films (50–400 nm) of tosylate-doped poly(3,4-ethylene-dioxy-thiophene) (PEDOT) on various substrates have been studied by grazing incidence X-ray diffraction, using synchrotron radiation. The material was found to be highly anisotropic. This is correlated with a strong anisotropy observed in its optical and electronic properties.
The crystalline order is limited, and evidence is found for a paracrystalline structure. A structural model is presented, which corroborates with the optical anisotropy. The effect of heating the material to 200 °C was studied. Unlike the situation for other substituted polythiophenes, heating PEDOT increases the crystalline order.
Language: | English |
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Year: | 1999 |
Pages: | 561-564 |
ISSN: | 18793290 and 03796779 |
Types: | Journal article |
DOI: | 10.1016/S0379-6779(98)00315-4 |