Search Results - "Vourdas, N."

Mechanisms of Oxygen Plasma Nanotexturing of Organic Polymer Surfaces: From Stable Super Hydrophilic to Super Hydrophobic Surfaces by Tsougeni, K, Vourdas, N, Tserepi, A, Gogolides, E, Cardinaud, C

“…Plasma processing is used to fabricate super hydrophilic or super hydrophobic polymeric surfaces by means of O2 plasma etching of two organic polymers, namely,…”
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Optical and structural properties of copper oxide thin films grown by oxidation of metal layers by Papadimitropoulos, G., Vourdas, N., Vamvakas, V. Em, Davazoglou, D.

“…Copper oxide films were grown by oxidation of vacuum evaporated copper layers on silicon substrates. Oxidations were performed at atmospheric pressure, in a…”
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Droplet Mobility Manipulation on Porous Media Using Backpressure by Vourdas, N, Pashos, G, Kokkoris, G, Boudouvis, A. G, Stathopoulos, V. N

“…Wetting phenomena on hydrophobic surfaces are strongly related to the volume and pressure of gas pockets residing at the solid–liquid interface. In this study,…”
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Substoichiometric hot-wire WOx films deposited in reducing environment by Vourdas, N., Papadimitropoulos, G., Kostis, I., Vasilopoulou, M., Davazoglou, D.

“…Substoichiometric tungsten oxide films were deposited on Si substrates by heating metallic filaments at temperatures of 920, 1020 and 1070K at a total pressure…”
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Plug actuation and active manipulation in closed monolithic fluidics using backpressure by Vourdas, N., Pashos, G., Rizos, E., Kokkoris, G., Tsampasis, E., Klouvidaki, E., Boudouvis, A.G., Stathopoulos, V.N.

“…We explore the mechanisms to actuate and manipulate liquid plugs in monolithic closed channel fluidics with porous hydrophobic walls. Applying a small…”
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Water-Repellent Approaches for 3-D Printed Internal Passages by Milionis, A., Noyes, C., Loth, E., Bayer, I. S., Lichtenberger, A. W., Stathopoulos, V. N., Vourdas, N.

“…In this work, two different manufacturing approaches are presented that create water-repellency (hydrophobicity and super-hydrophobicity) for acrylonitrile…”
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Plasma processing for polymeric microfluidics fabrication and surface modification: Effect of super-hydrophobic walls on electroosmotic flow by Vourdas, N., Tserepi, A., Boudouvis, A.G., Gogolides, E.

“…We report on the fabrication and electrokinetic characterization of poly-methyl methacrylate (PMMA) microfluidics by deep O2 plasma etching, utilizing a…”
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Highly porous tungsten oxides for electrochromic applications by Kostis, I., Vasilopoulou, M., Soultati, A., Argitis, P., Konofaos, N., Douvas, A.M., Vourdas, N., Papadimitropoulos, G., Davazoglou, D.

“…[Display omitted] •Electrochromic properties of tungsten oxides.•Hot wire deposited tungsten oxide.•Highly porous metal oxide films.•Higher effective…”
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Formation of stoichiometric, sub-stoichiometric undoped and hydrogen doped tungsten oxide films, enabled by pulsed introduction of O2 or H2 during hot-wire vapor deposition by Kostis, I., Vourdas, N., Vasilopoulou, M., Douvas, A., Papadimitropoulos, G., Konofaos, N., Iliadis, A., Davazoglou, D.

“…Tungsten oxide films with various stoichiometries, undoped and hydrogen doped were deposited by heating a W wire at 660°C and at a base pressure of 13Pa set by…”
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Optical characterization of Si-rich silicon nitride films prepared by low pressure chemical vapor deposition by Vamvakas, V.Em, Vourdas, N., Gardelis, S.

“…An investigation of the optical properties of Si-rich silicon nitride films prepared by low pressure chemical vapor deposition (LPCVD) from dichlorosilane (SiH…”
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Multiwavelength interferometry and competing optical methods for the thermal probing of thin polymeric films by Vourdas, N., Karadimos, G., Goustouridis, D., Gogolides, E., Boudouvis, A. G., Tortai, J.-H., Beltsios, K., Raptis, I.

“…Multiple‐wavelength interferometry (MWI), a new optical method for the thermal probing of thin polymer films, is introduced and explored. MWI is compared with…”
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Increased plasma etch resistance of thin polymeric and photoresist films by Vourdas, N., Boudouvis, A.G., Gogolides, E.

“…Plasma etch rate measurements of thin polymeric films are presented. Four commonly used polymers were etched (1) poly-methyl-methacrylate (PMMA), (2)…”
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Reversible pressure-induced switching of droplet mobility after impingement on porous surface media by Vourdas, N., Tserepi, A., Stathopoulos, V. N.

“…We present a generic method to reversibly switch the mobility of a droplet after impingement onto a hydrophobic porous surface, from a sticky to a slippery…”
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Evaluation of LaAlO3 as top coat material for thermal barrier coatings by VOURDAS, N., MARATHONITI, E., PANDIS, P.K., ARGIRUSIS, Chr, SOURKOUNI, G., LEGROS, C., MIRZA, S., STATHOPOULOS, V.N.

“…Perovskite is a versatile group of oxide materials allowing their properties to be tailored by composition towards specific requirements. LaAlO3 was prepared…”
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Thickness-dependent glass transition temperature of thin resist films for high resolution lithography by Marceau, S., Tortai, J.-H., Tillier, J., Vourdas, N., Gogolides, E., Raptis, I., Beltsios, K., van Werden, K.

“…Fabrication of devices at the 45 nm node and beyond requires resist film with a thickness below 150 nm. The physicochemical properties of thin films, such as…”
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Plasma oxidation of polyhedral oligomeric silsesquioxane polymers by Eon, D., Raballand, V., Cartry, G., Cardinaud, Christophe, Vourdas, N., Argitis, P., Gogolides, E.

“…Copolymers containing polyhedral oligomeric silsesquioxane (POSS™) units have been developed to be used as photoresist components in a bilayer resist scheme…”
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Highly porous tungsten oxides for electrochromic applications : Nanodevices by KOSTIS, I, VASILOPOULOU, M, SOULTATI, A, ARGITIS, P, KONOFAOS, N, DOUVAS, A. M, VOURDAS, N, PAPADIMITROPOULOS, G, DAVAZOGLOU, D

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Multiwave length interferometry and competing optical methods for the thermal probing of thin polymeric films by Vourdas, N., Karadimos, G., Goustouridis, D., Gogolides, E., Boudouvis, Ag, Tortai, J.H., Beltsios, K., Raptis, I.

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Thickness-dependent glass transition temperature of thin resist films for high resolution lithography by Marceau, S., Tortai, J.H., Tillier, J., Vourdas, N., Gogolides, E., Raptis, I., Beltsios, K., van Werden, K.

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