scholarly journals Piezoelectric Properties of Pb1−xLax(Zr0.52Ti0.48)1−x/4O3 Thin Films Studied by In Situ X-ray Diffraction

Materials ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3338
Author(s):  
Thomas W. Cornelius ◽  
Cristian Mocuta ◽  
Stéphanie Escoubas ◽  
Luiz R. M. Lima ◽  
Eudes B. Araújo ◽  
...  

The piezoelectric properties of lanthanum-modified lead zirconate titanate Pb1−xLax(Zr0.52Ti0.48)1−x/4O3 thin films, with x = 0, 3 and 12 mol% La, were studied by in situ synchrotron X-ray diffraction under direct (DC) and alternating (AC) electric fields, with AC frequencies covering more than four orders of magnitude. The Bragg reflections for thin films with low lanthanum concentration exhibit a double-peak structure, indicating two contributions, whereas thin films with 12% La possess a well-defined Bragg peak with a single component. In addition, built-in electric fields are revealed for low La concentrations, while they are absent for thin films with 12% of La. For static and low frequency AC electric fields, all lanthanum-modified lead zirconate titanate thin films exhibit butterfly loops, whereas linear piezoelectric behavior is found for AC frequencies larger than 1 Hz.

1995 ◽  
Vol 268 (1-2) ◽  
pp. 102-107 ◽  
Author(s):  
P. Aungkavattana ◽  
B. Haartz ◽  
C.O. Ruud ◽  
S. Trolier-McKinstry

2016 ◽  
Vol 111 ◽  
pp. 429-434 ◽  
Author(s):  
Giovanni Esteves ◽  
Chris M. Fancher ◽  
Margeaux Wallace ◽  
Raegan Johnson-Wilke ◽  
Rudeger H.T. Wilke ◽  
...  

2007 ◽  
Vol 280-283 ◽  
pp. 211-214 ◽  
Author(s):  
Hua Zhou ◽  
Qingchi Sun ◽  
Cuimin Lu

Praseodymium (Pr) modified lead zirconate titanate ceramics (Pb1-1.5xPrx (ZryTi1-y) O3 with x = 0.02, 0.04, 0.06, 0.08 and y = 0.51, 0.52, 0.54, 0.56, 0.58, 0.60) were prepared by the high temperature solid-state reaction method. X-ray diffraction (XRD) results show that the morphotropic phase boundary (MPB) of Pb0.955Pr0.03(ZryTi1-y)O3 (PPZT1) is located in the area where the molar fraction of Zr is near 55%, when the molar fraction of Zr is 54% and the sintering temperature is 1240°C with 1h curing time, the superior piezoelectric properties of compositions of PPZT1 system were optimized, a set of d33 = 420 pC/N; eT 33/e0 = 2,000; Tc = 314°C; Qm = 76; tand = 2% and kp = 0.53. On the other hand, Pb1-1.5xPrx(Zr0.54Ti0.46)O3 (PPZT2) is far from MPB and their compositions are all in tetragonal phase.


Materials ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4500
Author(s):  
Kien Nguyen ◽  
Ewen Bellec ◽  
Edoardo Zatterin ◽  
Gwenael Le Rhun ◽  
Patrice Gergaud ◽  
...  

Electrical aging in lead zirconate titanate (PbZrxTi1−xO3) thin films has been intensively studied from a macroscopic perspective. However, structural origins and consequences of such degradation are less documented. In this study, we have used synchrotron radiation to evaluate the behavior of ferroelectric domains by X-ray diffraction (XRD). The sample was loaded with an AC triangular bias waveform between ±10 V with a number of cycle varying from one up to 108. At each step of the aging procedure, XRD spectra had been collected in situ during the application of an electric field on a capacitor. The fine analysis of the (200) pseudo-cubic peak structure allows to separate the evolution of the volume of a/c tetragonal and rhombohedral domains along the electrical biasing. Throughout the aging, both intrinsic and extrinsic responses of tetra and rhombohedral domains are altered, the behavior depending on the observed phase. This methodology opens up new perspectives in the comprehension of the aging effect in ferroelectric thin film.


1997 ◽  
Vol 12 (4) ◽  
pp. 1043-1047 ◽  
Author(s):  
Chang Jung Kim ◽  
Dae Sung Yoon ◽  
Joon Sung Lee ◽  
Chaun Gi Choi ◽  
Kwangsoo No

The lead zirconate titanate (PZT) thin films were fabricated using sol-gel spin coating onto Pt/Ti/glass substrates. Effects of the holding time for pyrolysis and the coating cycle on the preferred orientation of the PZT thin films were studied. The films were fabricated with different coating cycles (3, 5, 7, 9, 11), dried at 330 °C for different holding times (5, 30, 60 min), and then annealed at the same temperature of 650 °C using rapid thermal annealing (RTA). The preferred orientations of the films were investigated using x-ray diffraction and glancing angle x-ray diffraction. The microstructure and the selected area diffraction pattern of the PZT thin films were also investigated using scanning electron microscopy (SEM) and transmission electron microscopy (TEM), respectively.


2001 ◽  
Vol 84 (12) ◽  
pp. 2921-2929 ◽  
Author(s):  
Alexandre E. Glazounov ◽  
Hans Kungl ◽  
Jan-Thorsten Reszat ◽  
Michael J. Hoffmann ◽  
Arnd Kolleck ◽  
...  

2019 ◽  
Vol 239 ◽  
pp. 71-74 ◽  
Author(s):  
Tomoya Ohno ◽  
Kentaroh Fukumitsu ◽  
Takamasa Honda ◽  
Akinori Sakamoto ◽  
Sadaaki Tanaka ◽  
...  

1990 ◽  
Vol 200 ◽  
Author(s):  
C. K. Chiang ◽  
L. P. Cook ◽  
P. K. Schenck ◽  
P. S. Brody ◽  
J. M. Benedetto

ABSTRACTLead zirconate-titanate (PZT) thin films were prepared by the laser ablation technique. The PZT (Zr/Ti=53/47) target was irradiated using a focused q-switched Nd:YAG laser (15 ns, 100 mJ at 1.064 μ;m). The as-deposited films were amorphous as indicated by X-ray powder patterns, but crystallized readily with brief annealing above 650°C. The dielectric constant and the resistivity of the crystallized films were studied using a parallel-plate type capacitor structure.


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