Low‐Voltage All‐Polymer Field‐Effect Transistor Fabricated Using an Inkjet Printing Technique

Liu, Yi; Varahramyan, Kody; Cui, Tianhong

doi:10.1002/marc.200500493

Cited by 67 publications

(28 citation statements)

References 27 publications

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“…Despite the difficulties in ensuring these conditions, all-printed transistors have been demonstrated using pentacene precursors and poly-4-vinylphenol (PVP) dielectric; [24] and polypyrrole and PVP-K60. [25] Additive printing of active layer inks (organic semiconductors dissolved in various solvents) such as poly [5,5 0 -bis(3-dodecyl-2-thienyl)-2, 2 0 -bithiophene] (PQT-12), [26] F8T2, [27] air-stable poly(3-hexylthiophene) (P3HT) derivatives, [28] 6,13-bis(triisopropylsilylethynyl) pentacene (TIPs pentacene), [29] other pentacene precursors and oligothophenes [30] have been demonstrated. Recently, carbon nanotubes (mobility $ 0.07 cm 2 V À1 s…”

Section: Thin-film Transistorsmentioning

confidence: 99%

Inkjet Printing—Process and Its Applications

et al. 2010

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In this Progress Report we provide an update on recent developments in inkjet printing technology and its applications, which include organic thin-film transistors, light-emitting diodes, solar cells, conductive structures, memory devices, sensors, and biological/pharmaceutical tasks. Various classes of materials and device types are in turn examined and an opinion is offered about the nature of the progress that has been achieved.

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Section: Thin-film Transistorsmentioning

confidence: 99%

Inkjet Printing—Process and Its Applications

et al. 2010

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“…Also, the ink-jet printing is very attractive method due to its digital-driven direct productivity since the ink-jet printing could directly transfer CAD designs into device patterns. Also, we can reduce material waste by DropOn-Demand (DOD) material deposition [3][4][5][6][7] .…”

Section: Introductionmentioning

confidence: 99%

Effects of substrate treatments on silver ink-jet printing

et al. 2007

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In this study, characteristics of silver ink-jet printing were investigated under various substrate treatments such as substrate heating, hydrophobic coating, and ultraviolet (UV)/ozone soaking. Fluorocarbon (FC) film was spin-coated on the polyimide (PI) film substrate to obtain a hydrophobic surface. The coated FC film surface was estimated to have a fairly hydrophobic nature in that it exhibited a large water contact angle of 110-113 o . Although hydrophobicity of the FC film could reduce the diameter of the printed droplets, the singlet images printed on the FC film surface showed irregularities in the pattern size and the position of the printed droplet along with droplet merging phenomenon. The proposed UV/ozone soaking of the FC film improved the uniformity of the pattern size and the droplet position after printing and substrate heating was very effective way in preventing droplet merging. By heating of the substrate after UV/ozone soaking of the coated FC film, silver conductive lines of 78-116 µm line were successfully printed at relatively low substrate temperatures of 40 o C and 70 o C.

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“…Inkjet printing is applicable to various materials, including solution-based materials such as organometallics, organo-semiconductors, and polymers. It helps realize digitally driven direct productivity because it can transfer computer-aided designs directly onto device patterns and reduce material waste using a "drop-ondemand" material deposition [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Silver Inkjet Overlap-printing through Cohesion and Adhesion

Lee¹,

Cho²

2012

Journal of Electrical Engineering and Technology

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-We introduce an understanding of silver (Ag) inkjet overlap-printing characteristics from the viewpoints of cohesion between ink droplets and adhesion between an ink droplet and a surface. The printing characteristics were closely monitored by changing the surface energy to elucidate the effect of adhesion and cohesion on printing instability, such as droplet merging and line bulging. The surface energy of the substrate was changed through the hydrophilization of a hydrophobic fluorocarbon-coated surface. The surface energy and ink wettability of the prepared surfaces were characterized using sessile drop contact angle analysis, and printing instability was observed using an optical microscope after drop-on-demand inkjet printing with a 50% overlap in diameter of deposited singlet patterns. We found that the surface energy is not an appropriate indicator based on the experimental results of Ag ink printing on a hydrofluoric-treated silicon surface. The analytical approach using adhesion and cohesion was helpful in understanding the instability of the inkjet overlap-printing, as adhesion and cohesion represent the direct interfacial relationship between the Ag inks used and the substrate.

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Low‐Voltage All‐Polymer Field‐Effect Transistor Fabricated Using an Inkjet Printing Technique

Cited by 67 publications

References 27 publications

Inkjet Printing—Process and Its Applications

Inkjet Printing—Process and Its Applications

Effects of substrate treatments on silver ink-jet printing

Characterization of Silver Inkjet Overlap-printing through Cohesion and Adhesion

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