P-alkyl- and perfluoroalkyl-substituted oligothiophenes

Figpre 16.9 Chemical structures of various a,a -dialkyl substituted oligothiophenes 

The hole mobility of vapor-deposited DH-4T films was found fo be 0.03 cm with an lon Jott 

Barbarella et al. also synthesized a series of bis(dimethyl-rerf-butylsilyl)oligothiophenes [70]. Vacuum-evaporated thin films of the quinquethiophene 11 afforded pfet of 3 x 10 cm V s and 

Turbiez et al. synthesized a series of co-oligomers of thiophene and 3,4-ethylenedioxythiophene (EDOT) ranging from four to seven rings [72a]. They found that alternating thiophene and EDOT units leads to 

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