Organic field effect transistor, useful in electronic circuit, comprises a semiconducting layer partially containing a fullerene derivative with a carbon cluster and a substituent bound to the carbon cluster over a cyclopropane ring

摘要

Organic field effect transistor comprises a semiconducting layer partially containing at least a fullerene derivative (I), which is composed of a carbon cluster with 60-960C-atoms, preferably 60-70C-atoms, and at least a substituent that is bound to the carbon cluster over a cyclopropane ring. Organic field effect transistor comprises a semiconducting layer partially containing at least a fullerene derivative of formula (I), which is composed of a carbon cluster with 60-960C-atoms, preferably 60-70C-atoms, and at least a substituent that is bound to the carbon cluster over a cyclopropane ring. F1a carbon cluster; E1, E2COOR, COR, CONRR1, P(O)(OR)2 or SO2R; R, R1one or more substituted aliphatic H-, SH-, S-alkyl, SS-alkyl, NH-OH- or COOH-terminated group with 1-20C, preferably 1-12C, in which up to three CH2-unit is substituted by O, S or NR2, an aromatic H-, SH-, S-alkyl, SS-alkyl, NH-, OH- or COOH-terminated group with phenyl, benzyl, naphthyl, anthracenyl or pyrenyl, an unbranched, optionally one or more substituted aliphatic terminal-group with 1-20C linked with a liquid-crystalline promoter containing a rigid molecular unit (aromatic or cycloaliphatic group e.g. phenyl, biphenyl, anthracenyl, pyrazinyl, cyclohexyl or cholesteryl), a polarizable group e.g. COO, CONH, CH=N, N=N, NO=N, CH=CH, CH=CH-CH=N, C-C-triple bond, followed by a rigid molecular unit (aromatic or cycloaliphatic group example, phenyl, biphenyl, cyclohexyl, cholesteryl), linked with a terminal-group such as alkyl, alkoxy, OCO-alkyl, COO-alkyl, OCOO-alkyl, CN, halo, NO2, or the liquid-crystalline promoter consists of one of the aforementioned rigid molecular units that are linked with one of the aforementioned polarizable groups, or the liquid-crystalline promoter comprising two successive rigid molecular units that are linked with one of the terminal-group, where all types of liquid-crystalline promoter such as alkyl, alkoxy, OCO-alkyl, COO-alkyl, OCOO-alkyl terminal-group is terminated by H-, SH-, S-alkyl, SS-alkyl, NH-, OH- or COOH groups; and R2H, 1-20C alkyl, phenyl or benzyl. Independent claims are included for: (1) an electronic circuit comprising at least two organic-polymeric- or organic-inorganic field effect transistors; (2) the manufacturing of the field effect transistor or electronic circuit comprising mixing the fullerene or a mixture of p type-conducting material with a liquid, which is a solvent mixture or a solvent with a proportion of a non-solvent to give the semiconducting layer, followed by drying; (3) a semi-conducting layer obtained by the process; and (4) a fullerene derivative. [Image].