Plasma Processing of Surfaces and Nanostructured Coatings for Flexible and Printed Electronics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00103622" target="_blank" >RIV/00216224:14310/18:00103622 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Plasma Processing of Surfaces and Nanostructured Coatings for Flexible and Printed Electronics

Popis výsledku v původním jazyce

Flexible and printed photovoltaics can contribute greatly to increasing global access to cheap energy. Dye-sensitized solar cells (DSSC) and perovskite solar cells, in which the photo-electrochemical system relies upon a mesoporous crystalline TiO2 layer, have emerged as a promising low-cost photovoltaic technology and constitute a notable application field for semiconducting photoanodes. Fine mesoporous TiO2 films are usually cured at high temperatures by means of a slow convection heating procedure (at least 30 min above 350 °C) in order reliably to remove all organic components present in the coating formulation. The high sintering temperature, however, precludes the use of such a procedure for thermally sensitive and flexible substrates and results in performance deterioration in transparent conducting oxide substrates. We prepared hybrid mesoporous titania/silica electron-generating and transporting layers using wet coating with a dispersion consisting of prefabricated titania nanoparticles and a methyl-silica binder. Titania/methyl-silica wet layers were deposited by inkjet printing on ITO/PET flexible foils and further mineralized by low-temperature (70 °C) atmospheric-pressure air plasma using diffuse coplanar surface barrier discharge (DCSBD) to form a titania/silica hybrid nanocomposite coating 1. The plasma mineralization process provides production performance superior to the previously-considered processes (thermal sintering and UV curing 2), taking only a fraction of the time required for them at far lower temperatures. The coating can be applied on flexible polymer which makes the application suitable for fast roll-to-roll fabrication units. The reported method could constitute a major step forward in the large-scale manufacture of low-cost flexible functional coatings 3.

Název v anglickém jazyce

Plasma Processing of Surfaces and Nanostructured Coatings for Flexible and Printed Electronics

Popis výsledku anglicky

Flexible and printed photovoltaics can contribute greatly to increasing global access to cheap energy. Dye-sensitized solar cells (DSSC) and perovskite solar cells, in which the photo-electrochemical system relies upon a mesoporous crystalline TiO2 layer, have emerged as a promising low-cost photovoltaic technology and constitute a notable application field for semiconducting photoanodes. Fine mesoporous TiO2 films are usually cured at high temperatures by means of a slow convection heating procedure (at least 30 min above 350 °C) in order reliably to remove all organic components present in the coating formulation. The high sintering temperature, however, precludes the use of such a procedure for thermally sensitive and flexible substrates and results in performance deterioration in transparent conducting oxide substrates. We prepared hybrid mesoporous titania/silica electron-generating and transporting layers using wet coating with a dispersion consisting of prefabricated titania nanoparticles and a methyl-silica binder. Titania/methyl-silica wet layers were deposited by inkjet printing on ITO/PET flexible foils and further mineralized by low-temperature (70 °C) atmospheric-pressure air plasma using diffuse coplanar surface barrier discharge (DCSBD) to form a titania/silica hybrid nanocomposite coating 1. The plasma mineralization process provides production performance superior to the previously-considered processes (thermal sintering and UV curing 2), taking only a fraction of the time required for them at far lower temperatures. The coating can be applied on flexible polymer which makes the application suitable for fast roll-to-roll fabrication units. The reported method could constitute a major step forward in the large-scale manufacture of low-cost flexible functional coatings 3.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20506 - Coating and films

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů