期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 25, 期 32, 页码 7740-7748出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201901066
关键词
bridged cyclo-oligophenylenes; charge transport; nanorings; organic field effect transistor; organic semiconductors
资金
- European Union [699648]
- European Union through the European regional development fund (ERDF)
- Ministry of Higher Education and Research
- Region Bretagne (ARED DIADEM)
- Departement d'Ille et Vilaine and Rennes Metropole
- ANR [14-CE05-0024]
- Marie Curie Actions (MSCA) [699648] Funding Source: Marie Curie Actions (MSCA)
Nanorings, which are macrocycles possessing radially directed pi-orbitals have shown fantastic development in the last ten years. Unravelling their unusual electronic properties has been one of the driving forces of this research field. However, and despite promising properties, their incorporation in organic electronic devices remains very scarce. In this work, we aim to contribute to bridge the gap between organic electronics and nanorings by reporting the synthesis, the structural and electronic properties and the incorporation in an organic field-effect transistor (OFET) of a cyclic tetracarbazole, namely [4]cyclo-N-ethyl-2,7-carbazole ([4]C-Et-Cbz). The structural, photophysical and electrochemical properties have been compared to those of structurally related analogues [4]cyclo-9,9-diethyl-2,7-fluorene [4]C-diEt-F (with carbon bridges) and [8]-cycloparaphenylene [8]CPP (without any bridge) in order to shed light on the impact of the bridging in nanorings. This work shows that nanorings can be used as an active layer in an OFET and provides a first benchmark in term of OFET characteristics for this type of molecules.
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