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.
|Titolo:||Synthesis and field-effect properties of α,ω-disubstituted sexithiophenes bearing polar functional groups|
|Data di pubblicazione:||2006|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1039/b515583e|
|Appare nelle tipologie:||1.1 Articolo in rivista|