Pyroelectric Properties of the Plt(10) Thin Film on the P-Doped Poly Silicon

1996 ◽  
Vol 433 ◽  
Author(s):  
Seong Jun Kang ◽  
Yung Sup Yoon ◽  
Dong Il Kim

AbstractWe have studied the pyroelectric properties of the PLT(10) thin film deposited on a p-doped poly-Si electrode by using the sol-gel method. Measurement of the dielectric constant as a function of temperature shows the typical characteristics of a ferroelectric. The dielectric constant reaches a maximum at 295°C, which can be thought of as the Curie temperature. The PLT(10) thin film on p-doped poly-Si fabricated in this research shows excellent pyroelectric properties. The pyroelectric coefficient and the fiqures of merit, Fv and FD at room temperature are measured as 5.76 × 10−8 C/cm2 °C, 1.17 × 10−10C-cm/J and 0.93 × 10−8C-cm/J, respectively.

1992 ◽  
Vol 271 ◽  
Author(s):  
M. KuWabAra ◽  
T. Kuroda ◽  
S. Takahashi ◽  
T. Azuma

ABSTRACTBarium titanate, lead titanate and barium-lead titanate thin films were prepared by the sol-gel method using metal alkoxides on metallic conducting BaPbO3 ceramic substrates. Thin films were deposited on the polished surfaces of the substrates by spin coating solutions containing Ba(OC2H4OCH3)2, Pb(OCOCH3)2 and Ti(O-iC3H7)4 and methoxyethanol. The gel films were then fired at appropriate temperatures to yield ceramic thin films. A 0.50 µm-thick BaTio3 film showed a dielectric constant of 280 and tan ° of 3% at 1kHz with no distinguishable peak of dielectric constant at any temperature between 20°C and 200°C. Both PbTiO3 (0.75 µm thick) and Ba0.7Pb0.3 (0.2 µm thick) films, on the other hand, showed a distinguishable peak of dielectric constant at their Curie point with a rather deformed P-E hysteresis loop at room temperature.


2005 ◽  
Vol 475-479 ◽  
pp. 1733-1736 ◽  
Author(s):  
Z.W. He ◽  
Xing Qin Liu ◽  
D.Y. Xu ◽  
Qiang Su ◽  
D.F. Guo ◽  
...  

The characteristic of nanoporous SiO2 thin film prepared by sol-gel method with catalyst HF was studied by scanning electron microscopy, Fourier transform infrared, HP analyzer series and ellipsometry. Results showed the incorporation of HF effectively adjusted the pore size and distribution, and lowered the leakage current density and dielectric constant. This might be related to the weak acidity of HF, which properly controlled the velocity of chemical reaction in solution, and to the introduction of strong Si-F bonds, which had the lower electronegative and the larger volume.


Author(s):  
Dong XU ◽  
Qi SONG ◽  
Ke ZHANG ◽  
Hong-Xing XU ◽  
Yong-Tao YANG ◽  
...  
Keyword(s):  
Sol Gel ◽  

2008 ◽  
Vol 25 (7) ◽  
pp. 2638-2641
Author(s):  
Liu Li-Feng ◽  
Kang Jin-Feng ◽  
Wang Yi ◽  
Zhang Xing ◽  
Han Ru-Qi

2012 ◽  
Vol 545 ◽  
pp. 275-278 ◽  
Author(s):  
Lili Widarti Zainuddin ◽  
Norlida Kamarulzaman

A ceramics sample of LiTaO3 was prepared using a sol-gel method. The sample is annealed at 750 °C for 48 hours. X-ray diffraction analysis indicate the formation of single phase, rhombohedral structure. An ac impedance study was used to analyse the conductivity of LiTaO3 at room temperature and at various temperatures.


2013 ◽  
Vol 62 (8) ◽  
pp. 1176-1182 ◽  
Author(s):  
Jong Hoon Lee ◽  
Chang Hoi Kim ◽  
Hong Seung Kim ◽  
Jae Hoon Park ◽  
Jin Hwa Ryu ◽  
...  

2001 ◽  
Vol 17 (12) ◽  
pp. 1112-1116
Author(s):  
Ma Jian-Hua ◽  
◽  
Wu Guang-Ming ◽  
Cheng Yin-Bing ◽  
Sun Qi ◽  
...  

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