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Inkjet printing narrow electrodes with line width and channel length for organic thin-film transistors
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10.1063/1.3115830
/content/aip/journal/apl/94/16/10.1063/1.3115830
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/16/10.1063/1.3115830
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Optical images and typical height vs width profiles for annealed silver precursor lines printed at dot-to-dot spacing of (a) , (b) , and (c) . The ink contains silver acetate and ethylene glycol as cosolvent. Scale bars indicate .

Image of FIG. 2.
FIG. 2.

Effect of dot-to-dot spacing on line width and center-to-edge height ratio for inks containing silver acetate and, respectively, (◼, line width; ▲, ratio) and ethylene glycol (◻, line width; △, ratio). The increasing ethylene glycol concentration causes a shift in optimal dot-to-dot spacing, which in turn decreases the line width at the optimal spacing.

Image of FIG. 3.
FIG. 3.

(a) Line width printed on glass microscope slides (▲) and on silicon wafer (△) at optimal dot-to-dot spacing for inks with ethylene glycol as a function of ink viscosity. Inset shows the viscosity as a function of silver acetate concentration. (b) Center-to-edge height ratio of lines printed at various dot-to-dot spacing for inks with viscosities of (▲) 9.52 cp, (◼) 13.46 cp, and (●) 15.84 cp.

Image of FIG. 4.
FIG. 4.

(a) The fabrication scheme used to make our OTFTs, (b) top view of a typical OTFT fabricated using inkjet printed source and drain electrodes and inkjet printed PQT semiconductor, (c) the drain current as a function of drain voltage at various gate voltages, and (d) the drain current as a function of gate voltage at drain voltage of −60 V. The transistor had an electrode width of , a channel length of , and a channel width of .

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/content/aip/journal/apl/94/16/10.1063/1.3115830
2009-04-21
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Inkjet printing narrow electrodes with <50 μm line width and channel length for organic thin-film transistors
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/16/10.1063/1.3115830
10.1063/1.3115830
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