Synthesis, Crystal Structure, and Transistor Performance of Tetracene Derivatives
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- 5 November 2004
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 126 (47) , 15322-15323
- https://doi.org/10.1021/ja045208p
Abstract
The substitution of chloro or bromo groups in tetracene gives rise to the change of crystal structure, having a substantial effect on carrier transport. Halogenated tetracene derivatives were synthesized and grown into single crystals. Monosubstituted 5-bromo- and 5-chlorotetracenes have the herringbone-type structure, while 5,11-dichlorotetracene has the slipped π stacking structure. Mobility of 5,11-dichlorotetracene was measured to be as high as 1.6 cm2/V·s in single-crystal transistors. The π stacking structure, which enhances π orbital overlap and facilitates carrier transport, may thus be responsible for this high mobility.Keywords
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