A novel synthesis procedure for the production of 2-bromotetracenes was developed. From these 2-bromotetracenes, ditetracenes or oligotetracenes can be formed in the presence of organo-metal catalysts.<br><br>
The di- and oligotetracenes according to the present invention are more easily available, simpler to purify, and more convenient to process than conventional organic semiconductor materials. The field effect mobility and on-off ratio with these are comparable to pentacenes, whereby the tetracene derivatives, in contrast to pentacenes, are chemically stable.
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