NDLI: Structural, ferroelectric and dielectric properties of Na$_{0.5}$Bi$_{0.5}$(Ti$_{0.98}$Fe$_{0.02}$)O$

Content Provider	Springer Nature Link
Author	Yao, Qian Yang, Changhong Geng, Fangjuan Feng, Chao Lv, Panpan Zhang, Xiuzhi Qian, Jin
Copyright Year	2015
Abstract	Na$_{0.5}$Bi$_{0.5}$(Ti$_{0.98}$Fe$_{0.02}$)O$_{3}$ (NBTFe) thin films have been prepared on monocrystalline Si, Al-doped ZnO/glass and Pt/TiO$_{2}$/SiO$_{2}$/Si substrates by metal organic decomposition combined with sequential layer annealing. The structure, leakage current, ferroelectric and dielectric properties of NBTFe thin films are very sensitive to the using substrates. The NBTFe on Si exhibits a competitive growth mode with various oriented crystallites at different annealing temperature. At 550 °C, the NBTFe on all the substrates crystallize into the pure rhombohedral perovskite structure with an obvious difference in orientation. The electrical measurements were conducted on metal–ferroelectric–semiconductor and metal–ferroelectric–metal capacitors. The NBTFe film on Si exhibits the capacitance–voltage curve with a maximum memory window of 2 V at the applied voltage of ±6 V originated from the ferroelectric polarization. The NBTFe film on Al-doped ZnO/glass shows a round polarization–electric field hysteresis loop due to the large contribution from the leakage current. In contrast, a large remanent polarization (P $_{ r }$) of 18 μC/cm$^{2}$ for NBTFe deposited on Pt/TiO$_{2}$/SiO$_{2}$/Si can be obtained. Also, the NBTFe thin film on Pt/TiO$_{2}$/SiO$_{2}$/Si shows a high ε $_{ r }$ of 313 and low tan δ of 0.1 at 100 kHz.
Starting Page	776
Ending Page	780
Page Count	5
File Format	PDF
ISSN	09574522
Journal	Journal of Materials Science: Materials in Electronics
Volume Number	27
Issue Number	1
e-ISSN	1573482X
Language	English
Publisher	Springer US
Publisher Date	2015-10-05
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Optical and Electronic Materials Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Biomaterials Biophysics Condensed Matter Physics Electronic, Optical and Magnetic Materials Bioengineering Electrical and Electronic Engineering Biomedical Engineering

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