Ink-jet printed planar electrochemical cells

Dzik, Petr; Veselý, Michal; Králová, Marcela; Neumann‐Spallart, M.

doi:10.1016/j.apcatb.2014.09.030

Cited by 11 publications

(6 citation statements)

References 23 publications

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“…Moreover, the possibility of precise patterning and the ease of up-scaling make this type of deposition very appealing for the production of photonic devices such as sensors, solar electrochemical cells, patterned coatings, etc. [20,21,22,23,24,25].…”

Section: Resultsmentioning

confidence: 99%

Optical Properties of Titania Coatings Prepared by Inkjet Direct Patterning of a Reverse Micelles Sol-Gel Composition

et al. 2015

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Thin layers of titanium dioxide were fabricated by direct inkjet patterning of a reverse micelles sol-gel composition onto soda-lime glass plates. Several series of variable thickness samples were produced by repeated overprinting and these were further calcined at different temperatures. The resulting layers were inspected by optical and scanning electronic microscopy and their optical properties were investigated by spectroscopic ellipsometry in the range of 200-1000 nm. Thus the influence of the calcination temperature on material as well as optical properties of the patterned micellar titania was studied. The additive nature of the deposition process was demonstrated by a linear dependence of total thickness on the number of printed layers without being significantly affected by the calcination temperature. The micellar imprints structure of the titania layer resulted into significant deviation of measured optical constants from the values reported for bulk titania. The introduction of a void layer into the ellipsometric model was found necessary for this particular type of titania and enabled correct ellipsometric determination of layer thickness, well matching the thickness values from mechanical profilometry.

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Section: Resultsmentioning

confidence: 99%

Optical Properties of Titania Coatings Prepared by Inkjet Direct Patterning of a Reverse Micelles Sol-Gel Composition

et al. 2015

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“…16, top). They have been employed for the degradation of model aqueous pollutants, and significant acceleration of the process has been observed 67 . With the reported formulation readily available, we have investigated the option of switching to a cold process,…”

Section: Application Perspectivementioning

confidence: 99%

“…They have been employed for the of model aqueous pollutants, and significant acceleration of the process has been observed. 67 With the reported formulation readily available, we have investigated the option of switching to a cold process, where the active semiconducting layer would be patterned by direct inkjet printing of the reported formulation (Figure 16, middle). Possible further upscaling has been demonstrated by the fabrication of 10 × 10 cm prototypes on PET substrates, which feature interdigitated electrodes fabricated by inkjet printing of nanosilver ink (Figure 16, bottom).…”

Section: Application Perspectivementioning

confidence: 99%

“…Recently, such devices have been fabricated in our lab by a hot process involving the printing of a reverse micelle-based sol–gel , formulation onto a prepatterned ITO layer and calcining at 450 °C (Figure , top). They have been employed for the degradation of model aqueous pollutants, and significant acceleration of the process has been observed . With the reported formulation readily available, we have investigated the option of switching to a cold process, where the active semiconducting layer would be patterned by direct inkjet printing of the reported formulation (Figure , middle).…”

Section: Application Perspectivementioning

confidence: 99%

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Properties and Application Perspective of Hybrid Titania-Silica Patterns Fabricated by Inkjet Printing

Dzik

Veselý

Kete

et al. 2015

ACS Appl. Mater. Interfaces

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A hybrid titania-silica cold-setting sol has been developed that can be deposited onto a wide variety of surfaces without the need for high-temperature fixing and that is suitable for material printing deposition. Thin hybrid titania-silica coatings were patterned onto glass and PET substrates by inkjet printing. Well-defined hybrid titania-silica patterns, with thicknesses ranging from 40 to 400 nm, were fabricated by overprinting 1 to 10 layers. Excellent mechanical, optical, and photocatalytic properties were observed, making the reported material well suited for the fabrication of transparent self-cleaning coatings both on mineral and organic substrates. The printed patterns exhibit photoelectrochemical activity that can be further improved by thermal or photonic curing. A concept of fully printed interdigitated photoelectrochemical cells on flexible PET substrates utilizing the reported hybrid photocatalyst is disclosed as well.

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“…Moreover, many prototype multicomponent devices such as capacitors [29], transistors [30], electronic filters [31], and organic light-emitting diodes [32] have been successfully fabricated. Recently we reported on a fully printed semiconductor-based photoelectrochemical cell [33].…”

Section: Introductionmentioning

confidence: 99%

Cold-Setting Inkjet Printed Titania Patterns Reinforced by Organosilicate Binder

et al. 2015

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Abstract:A hybrid organo-silica sol was used as a binder for reinforcing of commercial titanium dioxide nanoparticles (Evonic P25) deposited on glass substrates. The organo-silica binder was prepared by the sol-gel process and mixtures of titania nanoparticles with the binder in various ratios were deposited by materials printing technique. Patterns with both positive and negative features down to 100 µm size and variable thickness were reliably printed by Fujifilm Dimatix inkjet printer. All prepared films well adhered onto substrates, however further post-printing treatment proved to be necessary in order to improve their reactivity. The influence of UV radiation as well as of thermal sintering on the final electrochemical and photocatalytic properties was investigated. A mixture containing 63 wt % of titania delivered a balanced compromise of mechanical stability, generated photocurrent density and photocatalytic activity. Although the heat treated samples yielded generally higher photocurrent, higher photocatalytic activity towards model aqueous pollutant was observed in the case of UV cured samples because of their superhydrophilic properties. While heat sintering remains the superior processing method for inorganic substrates, UV-curing provides a sound treatment option for heat sensitive ones.

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Ink-jet printed planar electrochemical cells

Cited by 11 publications

References 23 publications

Optical Properties of Titania Coatings Prepared by Inkjet Direct Patterning of a Reverse Micelles Sol-Gel Composition

Optical Properties of Titania Coatings Prepared by Inkjet Direct Patterning of a Reverse Micelles Sol-Gel Composition

Properties and Application Perspective of Hybrid Titania-Silica Patterns Fabricated by Inkjet Printing

Cold-Setting Inkjet Printed Titania Patterns Reinforced by Organosilicate Binder

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