Layered Thiadiazoloquinoxaline‐Containing Long Pyrene‐Fused N‐Heteroacenes |
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| Authors: | Dr Ben‐Lin Hu Ke Zhang Dr Cunbin An Dr Dieter Schollmeyer Dr Wojciech Pisula Prof?Dr Martin Baumgarten |
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| Institution: | 1. Max Planck Institute for Polymer Research, Mainz, Germany;2. Institut für Organische Chemie, Johannes Gutenberg-Universit?t Mainz, Mainz, Germany;3. Department of Molecular Physics, Lodz University of Technology, Lodz, Poland |
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| Abstract: | Three thiadiazoloquinoxaline‐containing long pyrene‐fused N‐heteroacenes with 8, 13, and 18 rings were designed and synthesized. They show high electron affinities (EAs) of approximately 4.1 eV, which were derived from the onset of the reduction peaks in cyclic voltammetry. Crystal structure analysis revealed in‐plane extension through close contacts between thiadiazole units as well as layered packing, enabling in‐plane and interlayer electron transport. Organic field‐effect transistor devices provided electron mobilities, which suggest a potential way to enhance the charge transport in long N‐heteroacenes. |
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| Keywords: | electron transport materials N-heterocycles polycycles thiadiazoloquinoxalines two-dimensional packing |
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