Complementary-like inverters based on an ambipolar solution-processed molecular bis(naphthalene diimide)-dithienopyrrole derivative

Title
Complementary-like inverters based on an ambipolar solution-processed molecular bis(naphthalene diimide)-dithienopyrrole derivative
Authors
Shree Prakash TiwariJungbae KimKeith A. Knauer황도경Lauren E. PolanderStephen BarlowSeth R. MarderBernard Kippelen
Keywords
Organic field-effect transistors (OFETs); Complementary-like inverter; Organic semiconductor; CYTOP; Atomic layer deposition; Solution-processed
Issue Date
2012-04
Publisher
Organic electronics
Citation
VOL 13, 1166-1170
Abstract
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.
URI
http://pubs.kist.re.kr/handle/201004/44138
ISSN
15661199
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KIST Publication > Article
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