Aiying Wu
  Investigador  
   
  telefone: 234 401 419  
  extensão: 24 919  
  e-mail: aiying@ua.pt  
  departamento: Engenharia de Materiais e Cerâmica  
   
   
   
Perfil biográfico

Jan. 2000 Ph D in Material Sciences Dec. 2002 - Investigator In Associated Laboratory of “Center of Investigation of Ceramica Materials and Compositors”, University of Aveiro, Protugal.

Interesses científicos

• wet chemical reaction and material synthesis -- including stability of precursors, effect of solvents, stabilizers and surfactants, etc. • thin film technology -- including deposition (sol-gel, EPD) and characterization (XRD, SEM, TEM, RBS, dielectric and ferroelectric properties) • bulk ceramic calcination, sintering and characterization

Grupo de Investigação
Ferroelectric group
Principais colaboradores
Principais colaboradores: Paula Vilarinho, Isabel Salvado, Andrei Kholkin, Elizabete Costa 
Dept. Ceram. & Glass Eng. University of Aveiro , Portugal 
Ian M. Reaney, University of Sheffield, UK 
Angus Kingon, Brown University, USA
Alexei Gruverman, North Carolina State University, USA
Projectos financiados

- Colossal permittivity perovskite films by chemical solution deposition methods for microelectronic and sensor applications (PTDC/CTM/73367/2006, project coordinator)
- Nanoscale investigation of fatigue of ferroelectric thin films and ceramics (POCI/CTM/61071/2004, project coordinator)
- Processing and characterization of electroactive polymers and composites based on PVDF for microelectronic, sensor and actuator applications (POCTI/CTM/59425/2004, member of team)
- Novel BST dielectric films for ultra high density DRAMs (POCTI/CTM/47285/2002; Member of team)
- Nano Composites Thick Film by Wet Chemical Processing(POCTI/CTM/44743/2002, member of team, finished)

Publicações seleccionadas

- Jingzhong Xiao, Aiying Wu, Paula M. Vilarinho, “Sol-gel derived morphotropic phase boundary 0.37BiScO3-0.63PbTiO3 thin films”, Appl. Phys. Lett., 92(3) (2008).
- Min Jin, Jiayue Xu, Aiying Wu, Xinhua Li, Hui Shen, and Qingbo He, “Investigation of domain structures in PZNT93/7 crystals by chemical etching”, Cryst. Res. Technol., 1 – 4 (2008) DOI 10.1002/crat.200711080.
- Dunlu Sun, Aiying Wu, Shao-Tang Yin, “Structure, properties and impedance spectroscopy of  CaCu3Ti4O12 ceramics prepared by sol-gel process”, J. Am. Ceram. Soc. 91(1) 169-173 (2008).
- Bisserka Samuneva , Peter Djambaski, Elena Kashchieva, Georgi Chernev, Lyudmila Kabaivanova, Elka Emanuilova, Isabel M. Miranda Salvado, M.H.V. Fernandes, Aiying Wu, “Sol–gel synthesis and structure of silica hybrid biomaterials”, Journal of Non-Crystalline Solids 354 733–740 (2008).
- B S Li, A. Wu and P M Vilarinho, “Microscopic local fatigue in PZT thin films”, J. Phys. D: Appl. Phys. 40 7475–7479 (2007).
- F. Rémondière, Aiying Wu, Paula M. Vilarinho, J. P. Mercurio, “Piezoforce microscopy study of lead-free perovskite Na0.5Bi0.5TiO3 thin films”, Appl. Phys. Lett., 90, 152905 (2007).
- Zhi Fu, Aiying Wu, Paula M. Vilarinho, A.I Kingon, R. Woerdenweber, “Low Dielectric Loss BaNd2Ti5O14 Thick Films Prepared By An Electrophoretic Deposition Technique” Appl. Phys. Lett., 90, 052912 (2007).
- O. Okhay, A. Wu, P.M. Vilarinho, I.M. Reaney, A.R.L. Ramos, E. Alves, J. Petzelt, J. Pokorny, “Microstructural studies and electrical properties of Mg-doped SrTiO3 thin films”, Acta Materialia, 55, 4947–4954 (2007).
- Aiying Wu, Paula M. Vilarinho, A. Kholkin, “Low Temperature Preparation of Ferroelectric Relaxor Composite Thick Films”, J. Am. Ceram. Soc. 90(4) 1029-1037, (2007).
- Aiying Wu, G. Gonzalez-Aguilar, P. M. Vilarinho, I.M.Miranda Salvado and M.E.V. Costa, “Comparing macroscopic and microscopic properties of seeded ferroelectric thin films”, J. Electroceramics,  DOI 10.1007/s10832-007-9107-5, online: 5 April (2007).
- Zhi Fu, Aiying Wu, Paula M. Vilarinho, “Effect of seed layer thickness on texture and electrical properties of sol-gel derived (Ba0.8Sr0.2)TiO3 thin films”, Chem. Mater. 18, 3343-3350 (2006).
- G. González Aguilar, A. Wu, M.A. Reis, A.R. Ramos, I. M. Miranda Salvado, E. Alves, and M.E.V. Costa, “Diffusion processes in seeded and unseeded SBT thin films with varied stoichiometry”, Surface Science, 600, 1780-1786, (2006).
- Aiying Wu, P. M. Vilarinho, S. Srinivasan, A. I. Kingon, I. M. Reaney, D. Woodward, A. R. Ramos and E. Alves, “Microstructural Studies of PZT Thick Films on Cu Foils”, Acta Materialia, 54, 3211–3220, (2006).
- Mercedes B. González, Aiying Wu, Paula M. Vilarinho, “Influence of solvents on the microstructure and dielectric properties of Ba0.5Sr0.5TiO3 thin films prepared by diol based sol-gel process”, Chem. Mater., 18 1737-1744 (2006).
- Aiying Wu, P. M. Vilarinho, A. Kingon, “Electrophoretic deposition of lead zirconate titanate films on metal foils for embedded components”, J. Am. Ceram. Soc., 89 [2] 575–581 (2006).
- Aiying Wu, P. M. Vilarinho, V. V. Shvartsman, G. Suchaneck and A. L. Kholkin, “Domain populations in lead zirconate titanate thin films of different compositions via piezoresponse force microscopy”, Nanotechnology 16 2587-2595 (2005).
- O. Okhay, Aiying Wu, P. M. Vilarinho, “The Mg influence on the properties of SrTiO3 thin films”, J. Euro. Ceram. Soc. 25 3079-3083 (2005).
- Zhenrong Li, Aiying Wu, P. M. Vilarinho, Ian M. Reaney, “Core-shell microstructures in 0.68Pb(Fe2/3W1/3)O3-0.32PbTiO3 at the morphotropic phase boundary”, J. Physics: Condensed Matter 17 No 13 2167-2175 (2005).
- Zhenrong Li, Aiying Wu, P. M. Vilarinho, “Perovskite Phase Stabilization of Pb(Zn1/3Ta2/3)O3 Ceramics Induced by PbTiO3 Seeds”, Chem. Mater., 16 (4) 717-723 (2004).
- A. Wu, P. M. Vilarinho, I. Reaney, I. M. Miranda Salvado, “Early Stages of Crystallization of Sol-Gel Derived Lead Zirconate Titanate Thin Films” Chem. Mater., 15 (5) 1147-1155 (2003).
- Aiying Wu, Paula. M. Vilarinho, Isabel. M. Miranda Salvado, João. L. Baptista, Zhaoxia Zhou, I. M. Reaney, Ana. R. Ramos, Maria. F. da Silva, "Effect of Lead Zirconate Titanate Seeds on PtxPb Formation during the Pyrolysis of Lead Zirconate Titanate Thin Films" J. Am. Ceram. Soc., 85 (3) 641-646 (2002).
- Aiying Wu, P. M. Vilarinho,A. L. Kholkin, I. M. Miranda Salvado, J. L. Baptista, "Seeding effect on the fatigue behavior of PZT thin films", Integrated Ferroelectrics, 37 (1-4), 475-484 (2001).
- A. L. Kholkin, V. Yarmarkin, Aiying Wu, M. Avdeev, P. M. Vilarinho, and J. L. Baptista, "PZT-based Thick Film Composites for Electromechanical Applications" J. European Ceram. Soc. 21 1535-1538 (2001).
- A. L. Kholkin, A. Gruverman, Aiying Wu, M. Avdeev, P. M. Vilarinho, I. M. Miranda Salvado, J. L. Baptista, “Seeding Effect on Micro- and Domain Structure of Sol-Gel Derived PZT Thin Films”, Mater. Lett. 50 219-224 (2001).
- Aiying Wu, P. M. Vilarinho, I. M. Reaney, I. M. Miranda Salvado, J. L. Baptista, “Kinetic Aspects of the Formation of Seeded Lead Zirconate Titanate Thin Films” Integrated Ferroelectrics, 30 261-270 (2000).
- Aiying Wu, Li Yang, P. M. Vilarinho, I. M. Miranda Salvado & J. L. Baptista, “Structural and Electrical Properties of Seeded PZT Thin Films” Thin Solid Films 375 (1) 24-28 (2000).
- Aiying Wu, P. M. Vilarinho, I. M. Miranda Salvado & J. L. Baptista, “Sol-gel preparation of PZT powders and ceramics: effect of alkoxide stabilizers and lead precursors”, J. Am. Ceram. Soc., 83(6) 1379-1385 (2000).
- Aiying Wu, I. M. Miranda Salvado, P. M. Vilarinho, J. L. Baptista & A. J. D. Silvestre, “Lead zirconate titanate stable stock solution: characterization and applications” J. Sol-Gel Sci. & Tech. 19 671-676 (2000)
- A. L. Kholkin, V. Yarmarkin, Aiying Wu, P. M. Vilarinho, and J. L. Baptista, “Thick Piezoelectric Coatings Via a Modified Sol-Gel Technique” Integrated Ferroelectrics, 30 245-252 (2000).
- Aiying Wu, P. M. Vilarinho, I. M. Miranda Salvado, J. L. Baptista, C. M. de Jesus & M. F. da Silva, “Characterization of seeded sol-gel lead zirconate titanate thin films” J. European Ceram. Soc., 19 1403-1407 (1999).
- Aiying Wu, I. M. Miranda Salvado, P. M. Vilarinho & J. L. Baptista, “Lead zirconate titanate prepared form different zirconium and titanium precursors by sol-gel”, J. Am. Ceram. Soc., 81(10) 2640-2644 (1998).
- Aiying Wu, P. M. Vilarinho, I. M. Miranda Salvado & J. L. Baptista, “Seeding studies in PZT thin films”, Mater Res. Bull., 33(1) 59-68 (1998).
- Aiying Wu, P. M. Vilarinho, I. M. Miranda Salvado & J. L. Baptista, “Sol-gel preparation of PZT thin films with BaTiO3 seeds”, SPIE Vol. 3175, 227-231 (1998).
- Aiying Wu, I. M. Miranda Salvado, P. M. Vilarinho & J. L. Baptista, “Processing and seeding effects on crystallization of PZT thin films from sol-gel”, J. European Ceram. Soc., 17 1443-1452 (1997).
- SHEN Qiyong, WU Aiying, SHEN Juyun, FENG Zhijian & Zhou Wenyue, “Study on Structural Factor (Y) and Photochromic Properties of Glass with Standard Refractive Index nd =1.523”, J. Inorg. Mater., 10(4) 406-410 (1995).
- WU Aiying, SHEN Juyun, GUO Changling & LU Changwei, “Effects of the Replacement of R+ with R++ in AgX Photochromic Glass on f (Ts)”, J. Inorg. Mater., 6(3) (1991).
- WU Aiying, SHEN Juyun & WANG Muzhang, “The Chromaticity of Metastable Colored Glass Containing AgX”, J. Inorg. Mater., 5(3) (1990).
- SHEN Juyun & WU Aiying, “The Influence Factors of the Temperature Coefficient of the Td Value in Photochromic Glass”, J. Non-cryst. Solids, 96 765-770 (1987).

Projectos


publicações

 
Apoio

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