Characterization of Nanomechanical, Ferroelectric, and Piezoelectric Properties by Nanoindentation and Piezoresponse Force Microscopy of PbTiO3 Thin Films

2013 ◽  
Vol 52 (40) ◽  
pp. 14328-14334 ◽  
Author(s):  
Juan Ramos-Cano ◽  
Mario Miki-Yoshida ◽  
André Marino Gonçalves ◽  
José Antônio Eiras ◽  
Jesús González-Hernández ◽  
...  
Keyword(s):  
Thin Films ◽  
Piezoelectric Properties ◽  
Piezoresponse Force Microscopy ◽  
Force Microscopy ◽  
Ferroelectric And Piezoelectric Properties

Piezoresponse Force Microscopy Characterization of PTO Thin Films

2009 ◽  
Vol 1186 ◽  
Author(s):  
Alessio Morelli ◽  
Sriram Venkatesan ◽  
George Palasantzas ◽  
Bart J. Kooi ◽  
Jeff De Hosson
Keyword(s):  
Electron Microscopy ◽  
Thin Films ◽  
Transmission Electron Microscopy ◽  
Piezoelectric Properties ◽  
Piezoresponse Force Microscopy ◽  
Force Microscopy ◽  
Transmission Electron ◽  
Film Substrate ◽  
Microscopy Characterization

AbstractThe piezoelectric properties of PTO thin films grown by pulsed laser deposition are investigated with piezoresponse force microscopy and transmission electron microscopy. The as-grown films exhibit upward polarization, and inhomogeneous distribution of piezoelectric characteristics. The data obtained reveal imprint during piezoresponse force microscopy measurements, nonlinearity in the piezoelectric deformation, and limited retention loss. Moreover, transmission electron microscopy shows the presence of defects near the film/substrate interface, which can be associated with the variations of piezoelectric properties.

Direct characterization of nanoscale domain switching and local piezoelectric loops of (Pb,La)TiO3 thin films by piezoresponse force microscopy

2005 ◽  
Vol 81 (6) ◽  
pp. 1207-1212 ◽  
Author(s):  
R. Poyato ◽  
M.L. Calzada ◽  
V.V. Shvartsman ◽  
A. Kholkin ◽  
P. Vilarinho ◽  
...  
Keyword(s):  
Thin Films ◽  
Domain Switching ◽  
Piezoresponse Force Microscopy ◽  
Force Microscopy

Piezoresponse force microscopy characterization of rare-earth doped BiFeO3 thin films grown by the soft chemical method

2013 ◽  
Vol 39 (3) ◽  
pp. 2185-2195 ◽  
Author(s):  
C.R. Foschini ◽  
M.A. Ramirez ◽  
S.R. Simões ◽  
J.A. Varela ◽  
E. Longo ◽  
...  
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
Chemical Method ◽  
Piezoresponse Force Microscopy ◽  
Force Microscopy ◽  
Bifeo3 Thin Films ◽  
Microscopy Characterization ◽  
Rare Earth Doped

Thickness dependence of the nanoscale piezoelectric properties measured by piezoresponse force microscopy on (111)-oriented PLZT 10/40/60 thin films

2008 ◽  
Vol 602 (11) ◽  
pp. 1987-1992 ◽  
Author(s):  
A. Ferri ◽  
S. Saitzek ◽  
A. Da Costa ◽  
R. Desfeux ◽  
G. Leclerc ◽  
...  
Keyword(s):  
Thin Films ◽  
Piezoelectric Properties ◽  
Piezoresponse Force Microscopy ◽  
Thickness Dependence ◽  
Force Microscopy

scholarly journals The Physicochemical and Antibacterial Properties of Chitosan-Based Materials Modified with Phenolic Acids Irradiated by UVC Light

2021 ◽  
Vol 22 (12) ◽  
pp. 6472
Author(s):  
Beata Kaczmarek-Szczepańska ◽  
Marcin Wekwejt ◽  
Olha Mazur ◽  
Lidia Zasada ◽  
Anna Pałubicka ◽  
...  
Keyword(s):  
Thin Films ◽  
Antimicrobial Activity ◽  
Ferulic Acid ◽  
Phenolic Acid ◽  
Food Packaging ◽  
Antibacterial Properties ◽  
Force Microscopy ◽  
Atomic Force ◽  
Before And After

This paper concerns the physicochemical properties of chitosan/phenolic acid thin films irradiated by ultraviolet radiation with wavelengths between 200 and 290 nm (UVC) light. We investigated the preparation and characterization of thin films based on chitosan (CTS) with tannic (TA), caffeic (CA) and ferulic acid (FA) addition as potential food-packaging materials. Such materials were then exposed to the UVC light (254 nm) for 1 and 2 h to perform the sterilization process. Different properties of thin films before and after irradiation were determined by various methods such as Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), atomic force microscopy (AFM), differential scanning calorimeter (DSC), mechanical properties and by the surface free energy determination. Moreover, the antimicrobial activity of the films and their potential to reduce the risk of contamination was assessed. The results showed that the phenolic acid improving properties of chitosan-based films, short UVC radiation may be used as sterilization method for those films, and also that the addition of ferulic acid obtains effective antimicrobial activity, which have great benefit for food packing applications.

Sign in / Sign up

Export Citation Format

Share Document