Device effects of various Zr/Ti ratios of PZT thin-films prepared by sol-gel method

1992 ◽  
Vol 1 (2-4) ◽  
pp. 293-304 ◽  
Author(s):  
H. Watanabe ◽  
T. Mihara ◽  
C. A. Paz De Araujo
2010 ◽  
Vol 663-665 ◽  
pp. 650-653
Author(s):  
Jin Moo Byun ◽  
Jeong Sun Han ◽  
Jae Hyoung Park ◽  
Seong Eui Lee ◽  
Hee Chul Lee

This study examined the effect of crystalline orientation and dopants such as Nb and Zn on the piezoelectric coefficient of sol-gel driven Pb1(Zr0.52Ti0.48)O3(PZT) and doped PZT thin films. Crack-free 1-μm-thick PZT and doped PZT thin films prepared by using 2-Methoxyethanol-based sol-gel method were fabricated on Pt/Ti/SiO2/Si substrates. The highly (111) oriented PZT thin films of pure perovskite structure could be obtained by controlling various parameters such as a PbTiO3 seed layer and a concentration of sol-gel solution. The Nb-Zn doped PZT thin films exhibited high piezoelectric coefficient which was about 50 % higher than that of undoped PZT thin film. The highest measured piezoelectric coefficient was 240 pC/N, which could be applicable to piezoelectrically operated MEMS actuator, sensor, or energy harvester devices.


1996 ◽  
Vol 64 (11) ◽  
pp. 1166-1173
Author(s):  
Sachiko ONO ◽  
Masakatsu MAEDA ◽  
Tetsuya OSAKA ◽  
Ichiro KOIWA ◽  
Takao KANEHIRA ◽  
...  

1999 ◽  
Vol 596 ◽  
Author(s):  
T. Iijima ◽  
N. Sanada ◽  
K. Hiyama ◽  
H Tsuboi ◽  
M. Okada

AbstractAl substitution for Zr/Ti site of PZT was attempted using a sol-gel method, and the ferroelectric properties of 200nm-thick Al doped PZT thin films were compared with those of non- doped PZT film. The leakage current of the thin films decreased with increasing Al content. Ps and Pr also decreased with increasing Al content, whereas Ec did not show a significant change. Furthermore, a simple capacitor cell structure like FeRAM was prepared using a seed layer process. The capacitor structure was Pb(Ti0.975Al0.025)O3/ Pb1.1((Zr0.52Ti0.48)0. 975Al0.025)O3/ Pb(Ti0.975Al0.025)O3, and 2Pr was 26μC/cm2. The fatigue properties of the A1 doped PZT capacitor cell showed a little improvement, because the reduction rate of the fatigue was smaller than that of non-doped PZT thin film.


2013 ◽  
Vol 442 (1) ◽  
pp. 95-100 ◽  
Author(s):  
M. V. Silibin ◽  
A. A. Dronov ◽  
S. A. Gavrilov ◽  
V. V. Smirnov ◽  
D. A. Kiselev ◽  
...  

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