Influence of polymorphism on charge transport properties in isomers of fluorenone-based liquid crystalline semiconductorsElectronic supplementary information (ESI) available: B4OTF and B5OTF compounds: Synthetic procedures, optical textures, DSC traces, temperature-dependent X-ray diffraction patterns, indexation of the reflections observed in the small angles region, transient hole photocurrent curves in the different phases recorded at different electric fields. See DOI: 10.1039/c2cc17276c

We measured the charge carrier mobilities for two isomers of fluorenone-based liquid crystalline organic semiconductors from their isotropic down to crystalline states through one or two mesophases. Improved charge transport properties of melt-processed crystalline films were obtained for the isomer...

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Main Authors: Lincker, Frdric, Attias, Andr-Jean, Mathevet, Fabrice, Heinrich, Benot, Donnio, Bertrand, Fave, Jean-Louis, Rannou, Patrice, Demadrille, Renaud
Format: Article
Language:English
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Summary:We measured the charge carrier mobilities for two isomers of fluorenone-based liquid crystalline organic semiconductors from their isotropic down to crystalline states through one or two mesophases. Improved charge transport properties of melt-processed crystalline films were obtained for the isomer exhibiting a highly ordered mesophase below its disordered smectic phase. The role of isomerism in charge transport properties of fluorenone-based mesomorphic organic semiconductors is investigated.
ISSN:1359-7345
1364-548X
DOI:10.1039/c2cc17276c