Novel, low-cost, highly soluble n-type semiconductors: tetraazaanthracene tetraesters.
New tetraester derivatives of 1,4,5,8-tetraazaanthracene have been prepared and characterized by spectroscopic and electrochemical techniques. The LUMO level of the compounds is close to -4 eV (the so-called air operating stability border in n-channel field effect transistors). Tetraesters were obtained with reasonable yields without the necessity of using high-quality reactants or solvents, resulting in their low cost.
Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00 664 Warszawa, Poland. majdo007@wp.pl
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Gawrys
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Marszalek
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Bartnik
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Kucinska
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Ulanski
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Zagorska