Projects
Design of multifunctional films from porous thin films (PTDC/CTM/098130/2008)
PartnerFundação para a Ciência e a Tecnologia
film mesoporous mesostructured functionalisationProcessing and characterization of electroactive polymers and composites based on PVDF for microelectronic, sensor and actuator applications (POCI/CTM/59425/2004)
PartnerFundação para a Ciência e a Tecnologia
piezoelectricity sensors and actuators polymers and composites material processing and characterisationStatics and dynamics if hight polarizable ultra-thin films and nano-layered superlattices (PTDC/CTM/64805/2006)
PartnerFundação para a Ciência e a Tecnologia
Filmes finos dieléctricos Superredes em multicamadas nanométricas Estruturas desordenadas e relaxadoras Propriedades dieléctricas e vibracionaisPublications
Low temperature preparation of ferroelectric relaxor composite thick films
Wu, AY; Vilarinho, PM; Kholkin, A
2007, JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 90, 4, 1029-1037.
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Microstructural studies of PZT thick films on Cu foils
Wu, AY; Vilarinho, PM; Srinivasan, S; Kingon, AI; Reaney, IM; Woodward, D; Ramos, AR; Alves, E
2006, ACTA MATERIALIA, 54, 12, 3211-3220.
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Influence of solvents on the microstructure and dielectric properties of Ba0.5Sr0.5TiO3 thin films prepared by a diol-based sol-gel process
Gonzalez, MB; Wu, AY; Vilarinho, PM
2006, CHEMISTRY OF MATERIALS, 18, 7, 1737-1744.
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Effect of seed layer thickness on texture and electrical properties of sol-gel derived (Ba0.8Sr0.2) TiO3 thin films
Fu, Z; Wu, AY; Vilarinho, PM
2006, CHEMISTRY OF MATERIALS, 18, 14, 3343-3350.
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Electrophoretic deposition of lead zirconate titanate films on metal foils for embedded components
Wu, AY; Vilarinho, PM; Kingon, AI
2006, JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 89, 2, 575-581.
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Synthesis and dispersion of PZT ultra-fine powders
Wu, AY; Van Genechten, D; Vilarinho, PM; Van Bael, MK
2006, ADVANCED MATERIALS FORUM III, PTS 1 AND 2, 514-516, 179-183.
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Bi effect on the microstructure and dielectric properties of SrTiO(3)thin films
Okhay, O; Bergano, VMX; Wu, AY; Vilarinho, PM
2006, ADVANCED MATERIALS FORUM III, PTS 1 AND 2, 514-516, 245-249.
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The Mg influence on the properties of SrTiO3 thin films
Okhay, O; Wu, AY; Vilarinho, PM
2005, JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 25, 12, 3079-3083.
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Core-shell microstructures in 0.68Pb(Fe2/3W1/3)O-3-0.32PbTiO(3) at the morphotropic phase boundary
Li, ZR; Wu, AY; Vilarinho, PM; Reaney, IM
2005, JOURNAL OF PHYSICS-CONDENSED MATTER, 17, 13, 2167-2175.
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Surface charging or templating by carbonaceous substances to broaden the adsorption performance of clinoptilolite-rich tuff.

In Władysław Rudziński (Eds.), ANNALES
Chmielewská E, Sabová L, Wu A, Aranyosiová M, Velic D
2007, 35-48, Lublin, Polónia, Universitatis Maria e Curie - Sklodowska .
ISBN:
0137-6853
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Piezoelectric Thick Film Composites: Processing and Applications

Recent Research Developments in Materials Science
Kholkin A L, Wu A, Vilarnho PM
2004, 5, 1-24, Korela India, Research Signpost Publisher.
ISBN:
81-7736-203-8
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Patents
Method for the preparation at low temperatures of ferroelectric thin films, the ferroelectric thin films thus obtained and their applications

Processes InternationalNational
Vilarinho, Paula ; Wu, Aiying; Calzada, Maria; Rioboo, Ricardo; Bretos, Ignos
A processing technology for the fabrication at low temperatures of ferroelectric crystalline oxide thin films, among others PbZrxTi1-xO3 (PZT) (<400 ºC for PZT) with ferroelectric properties appropriate for integration in devices is herein disclosed. The method is also valid for the fabrication of ferroelectric thin film...Process for obtaining thin films of barium and strontium titanate at low temperatures by sol-gel and high tunable dielectric permittivity

Processes National
Vilarinho, Paula; Wu, Aiying; Gao, Jie
The present invention relates to a new process for obtaining thin films of dielectric, piezoelectric and ferroelectric materials at low temperatures, crystalline, dense and with optimized electrical properties, in particular barium and strontium titanate, BST, at low temperatures, 600 °C. Conventional sol gel solutions are mixed...Production of thick ceramic composite films via sol gel solutions sedimentation and infiltration

Processes National
Vilarinho, Paula; Wu, Aiying; Kholkin, Andrei
The present invention relates to a method for producing ceramic composite thick films of a thickness above 50 microns on a selected group of substrates at temperatures below 600 degrees Celsius, for piezoelectric applications.Sol-gel solutions are mixed with up to about 90% by weight of powder particles (ceramic or single cr...Tunable dielectric composite and method for the production thereof

Materials InternationalNational
Dielétrico compósito sintonizável e processo de fabrico
The present invention relates to composite dielectric materials with low dielectric losses and high tunability of the relative dielectric permittivity, in the form of thick films to be used and integrated in circuits, as passive components of tunable devices, for application at radio and microwave frequencies, and methods for the produc...