The synthesis of sexithiophenes bearing amide or ester groups in the alpha,omega-terminal positions is described, along with their characterization in the solid state. The influence of the functional group on mobilities and on/off ratios of the organic FET devices was investigated. The oligomer bearing the ester functional group separated from the sexithiophene core by an ethylene spacer showed a hole field-effect mobility as high as 0.012 cm(2) V(-1) s(-1), which is among the highest reported so far for organic FETs using sexithiophenes modified with polar groups.
Synthesis and field-effect properties of α,ω-disubstituted sexithiophenes bearing polar functional groups / Dell'Aquila, A.; Mastrorilli, Pietro; Nobile, C. F.; Romanazzi, Giuseppe; Suranna, Gian Paolo; Torsi, L.; Tanese, M. C.; Acierno, D.; Amendola, E.; Morales, P.. - In: JOURNAL OF MATERIALS CHEMISTRY. - ISSN 0959-9428. - 16:12(2006), pp. 1183-1191. [10.1039/b515583e]
Synthesis and field-effect properties of α,ω-disubstituted sexithiophenes bearing polar functional groups
MASTRORILLI, Pietro;ROMANAZZI, Giuseppe;SURANNA, Gian Paolo;
2006-01-01
Abstract
The synthesis of sexithiophenes bearing amide or ester groups in the alpha,omega-terminal positions is described, along with their characterization in the solid state. The influence of the functional group on mobilities and on/off ratios of the organic FET devices was investigated. The oligomer bearing the ester functional group separated from the sexithiophene core by an ethylene spacer showed a hole field-effect mobility as high as 0.012 cm(2) V(-1) s(-1), which is among the highest reported so far for organic FETs using sexithiophenes modified with polar groups.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
