Ambipolar Behavior of Hydrogen-Bonded Diketopyrrolopyrrole Thiophene Co-oligomers Formed from Their Soluble Precursors

Organic field-effect transistors with hydrogen-bonded diketopyrrolopyrrole-thiophene co-oligomers were fabricated by a solution-process method with annealing at 200 degrees C, showing ambipolar charge-carrier transfer with field-effect mobilities up to mu(h) = 6.7 x 10(-3) cm(2) V-1 s(-1) mu(o). = 5.6 x 10(-3) cm(2) V-1 s(-1).