Energy Storage Characteristics of BiFeO3/BaTiO3 Bi-Layers Integrated on Si
AbstractBiFeO3/BaTiO3 bi-layer thick films (~1 μm) were deposited on Pt/Ti/SiO2/(100) Si substrates with LaNiO3 buffer layers at 500 °C via a rf magnetron sputtering process. X-ray diffraction (XRD) analysis revealed that both BiFeO3 and BaTiO3 layers have a (00l) preferred orientation. The films showed a small remnant polarization (Pr ~ 7.8 μC/cm2) and a large saturated polarization (Ps ~ 65 μC/cm2), resulting in a slim polarization-electric field (P-E) hysteresis loop with improved energy storage characteristics (Wc = 71 J/cm3, η = 61%). The successful “slim-down” of the P-E loop from that of the pure BiFeO3 film can be attributed to the competing effects of space charges and the interlayer charge coupling on charge transport of the bi-layer film. The accompanying electrical properties of the bi-layer films were measured and the results confirmed their good quality. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Liu, M.; Zhu, H.; Zhang, Y.; Xue, C.; Ouyang, J. Energy Storage Characteristics of BiFeO3/BaTiO3 Bi-Layers Integrated on Si. Materials 2016, 9, 935.
Liu M, Zhu H, Zhang Y, Xue C, Ouyang J. Energy Storage Characteristics of BiFeO3/BaTiO3 Bi-Layers Integrated on Si. Materials. 2016; 9(11):935.Chicago/Turabian Style
Liu, Menglin; Zhu, Hanfei; Zhang, Yunxiang; Xue, Caihong; Ouyang, Jun. 2016. "Energy Storage Characteristics of BiFeO3/BaTiO3 Bi-Layers Integrated on Si." Materials 9, no. 11: 935.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.