We have studied alkyl-substituted pentacene derivatives for
solution-processing. By incorporation of substituent(s),
enhancement of solubility depending on substituted position(s) and substituent(s) was confirmed. Solution-processed
films of the derivatives showed highly oriented crystals with herringbone structure. This indicates that molecular
aggregation and electronic structure have been preserved after the substitution as expected from molecular design. Thinfilm
transistors of the derivatives exhibited large carrier mobility above 1cm2/Vs.
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