Correlating Nanomorphology with Charge‐Transport Anisotropy in Conjugated‐Polymer Thin Films

Anisotropic mobility in spin‐coated MEH‐PPV films is due to an interfacial layer of several nanometers at the film‐substrate interface with a higher electron density assisted by local chain alignment parallel to the substrate. This layer is formed via spin‐coating. The strength of this interface eff...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2009-08, Vol.21 (29), p.2988-2992
Main Authors: Huang, Yi‐Fang, Chang, Chan‐Wei, Smilgies, Detlef‐Matthias, Jeng, U‐Ser, Inigo, Anto Regis, White, Jonathon David, Li, Kang‐Chuang, Lim, Tsong‐Shin, Li, Tai‐De, Chen, Hsiang‐Yun, Chen, Show‐An, Chen, Wen‐Chang, Fann, Wun‐Shain
Format: Article
Language:English
Subjects:
Charge‐Transport Anisotropy
Conjugated Polymer
Mobility
Morphology
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Summary:Anisotropic mobility in spin‐coated MEH‐PPV films is due to an interfacial layer of several nanometers at the film‐substrate interface with a higher electron density assisted by local chain alignment parallel to the substrate. This layer is formed via spin‐coating. The strength of this interface effect is dependent on the solvent used.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200803341