The action of molasses on properties of coatings obtained with electrodeposition from a SiO2 aqueous suspension

Gerrero-Gerrero, N. A.; Mendoza-Lópes, M. L.; Péres-Robles, J. F.; Mansano-Ramires, A.; Vorob’ev, Yu. V.; Péres-Bueno, J. J.

doi:10.1134/s0020168509040232

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…Dense silica thin films have a variety of applications such as antioxidation and anticorrosion coatings, wear‐ or scratch‐resistant coatings, electrically insulating thin films, and planar optical waveguides . Such silica thin films are prepared by chemical vapor deposition, ion‐beam‐assisted deposition, flame hydrolysis deposition, sol–gel method, liquid‐phase deposition, cathodic electrolysis, and electrophoretic deposition . A solution route utilizing perhydropolysilazane (PHPS), an inorganic polymer composed of Si–N skeletons with Si–H terminal groups, has attracted much attention as a process for silica thin film preparation.…”

Section: Introductionmentioning

confidence: 99%

“…7,8 Such silica thin films are prepared by chemical vapor deposition, 2,5 ion-beam-assisted deposition, 4 flame hydrolysis deposition, 7 sol-gel method, 1,3,6,8 liquid-phase deposition, 9 cathodic electrolysis 10 , and electrophoretic deposition. 11 A solution route utilizing perhydropolysilazane (PHPS), an inorganic polymer composed of Si-N skeletons with Si-H terminal groups, has attracted much attention as a process for silica thin film preparation. The PHPS-based solution route was first addressed by Matsuo and Yamada, who deposited PHPS solutions on silicon wafers, followed by heat treatment at 450°C.…”

Section: Introductionmentioning

confidence: 99%

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Conversion of Solution‐Derived Perhydropolysilazane Thin Films into Silica in Basic Humid Atmosphere at Room Temperature

et al. 2013

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Spin‐on perhydropolysilazane (PHPS) thin films were converted into mechanically hard silica thin films by an exposure to the vapor from aqueous ammonia. Infrared absorption and X‐ray photoelectron spectroscopic analyses were conducted to clarify the details of the PHPS‐to‐silica conversion and the nature of the silica thin film products. The PHPS‐to‐silica conversion was found to proceed rapidly between 2 and 3 h of exposure via a reaction‐limited process, where the refractive index and the pencil hardness greatly decreased and increased, respectively. Finally, the O/Si mole ratio close to 2 was achieved, which has never been realized in literature for PHPS‐derived silica thin films. It was also found that the condensation of Si–OH groups proceeds in films immediately after PHPS hydrolysis, which is similar to the base‐catalyzed hydrolysis–condensation reaction of silicon alkoxides. Although the silica thin films obtained had refractive indices similar to that of silica glass, high pencil hardness over 9H on Si(100) substrates, and O/Si mole ratios close to 2, it was concluded that they are nonidentical to silica glass, containing trace amounts of Si–OH and Si–H groups.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Conversion of Solution‐Derived Perhydropolysilazane Thin Films into Silica in Basic Humid Atmosphere at Room Temperature

et al. 2013

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Thin Film Encapsulation of Organic Solar Cells by Direct Deposition of Polysilazanes from Solution

Channa

Distler

Zaiser

et al. 2019

Advanced Energy Materials

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Organic electronic devices (OEDs), e.g., organic solar cells, degrade quickly in the presence of ambient gases, such as water vapor and oxygen. Thus, in order to extend the lifetime of flexible OEDs, they have to be protected by encapsulation. A solution‐based encapsulation method is developed, which allows the direct deposition of the diffusion barrier on top of OEDs, thus avoiding lamination of barrier films. The method is based on the deposition of a perhydropolysilazane (PHPS) ink and its subsequent conversion into a silica layer by deep UV irradiation. The resulting barrier films show water vapor transmission rates (WVTRs) of <10−2 g m−2 d−1 (40 °C/85% relative humidity (RH)) and oxygen transmission rates (OTRs) of <10−2 cm3 m−2 d−1 bar−1 at ambient conditions. Flexibility of the resulting barrier films is improved by coating a barrier stack of several thin PHPS layers alternating with organic polymer interlayers. These stacks show an increase of WVTR values by less than 10% after 3000 bending cycles. Direct coating of the PHPS films on top of organic solar cells enhances the device lifetime in damp heat conditions from a few hours to beyond 300 h.

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Aqueous dip-coating route to dense and porous silica thin films using silica nanocolloids with an aid of polyvinylpyrrolidone

Kozuka

Yamano

Fujita

et al. 2011

J Sol-Gel Sci Technol

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The action of molasses on properties of coatings obtained with electrodeposition from a SiO2 aqueous suspension

Cited by 4 publications

References 6 publications

Conversion of Solution‐Derived Perhydropolysilazane Thin Films into Silica in Basic Humid Atmosphere at Room Temperature

Conversion of Solution‐Derived Perhydropolysilazane Thin Films into Silica in Basic Humid Atmosphere at Room Temperature

Thin Film Encapsulation of Organic Solar Cells by Direct Deposition of Polysilazanes from Solution

Aqueous dip-coating route to dense and porous silica thin films using silica nanocolloids with an aid of polyvinylpyrrolidone

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