Complementary-like inverters based on an ambipolar solution-processed molecular bis(naphthalene diimide)-dithienopyrrole
- Complementary-like inverters based on an ambipolar solution-processed molecular bis(naphthalene diimide)-dithienopyrrole
- Shree Prakash Tiwari; Jungbae Kim; Keith A. Knauer; 황도경; Lauren E. Polander; Stephen Barlow; Seth R. Marder; Bernard Kippelen
- Organic field-effect transistors (OFETs); Complementary-like inverter; Organic semiconductor; CYTOP; Atomic layer deposition; Solution-processed
- Issue Date
- Organic electronics
- VOL 13, 1166-1170
- We report on high-mobility top-gate organic field-effect transistors (OFETs) and complementary-
like inverters fabricated with a solution-processed molecular bis(naphthalene diimide)-
dithienopyrrole derivative as the channel semiconductor and a CYTOP/Al2O3 bilayer
as the gate dielectric. The OFETs showed ambipolar behavior with average electron and
hole mobility values of 1.2 and 0.01 ㎠ V-1 s-1, respectively. Complementary-like inverters
fabricated with two ambipolar OFETs showed hysteresis-free voltage transfer characteristics
with negligible variations of switching threshold voltages and yielded very high
DC gain values of more than 90 V/V (up to 122 V/V) at a supply voltage of 25 V.
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