Journal
ADVANCED MATERIALS
Volume 26, Issue 32, Pages 5722-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201401520
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Funding
- National Science Foundation [EEC-1160494, ECCS-1202189]
- NSF Graduate Fellowship Research Program [DGE-1106400]
- Systems on Nanoscale Information fabriCs (SONIC), one of the six SRC STARnet Centers - MARCO
- DARPA
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1255494] Funding Source: National Science Foundation
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1202189] Funding Source: National Science Foundation
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A combination of surface energy-guided blade coating and inkjet printing is used to fabricate an all-printed high performance, high yield, and low variability organic thin film transistor (OTFT) array on a plastic substrate. Functional inks and printing processes were optimized to yield self-assembled homogenous thin films in every layer of the OTFT stack. Specifically, we investigated the effect of capillary number, semiconductor ink composition (small molecule-polymer ratio), and additive high boiling point solvent concentrations on film fidelity, pattern design, device performance and yields.
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