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Your search keyword '"Nie, Chenghong"' showing total 11 results
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11 results on '"Nie, Chenghong"'

10. The ferroelectric and fatigue behaviors of Dy doped BiFeO thin films prepared by chemistry solution deposition.

Author

Gao, Wei, Xing, Wenyu, Yun, Qi, Chen, Jieyu, Nie, Chenghong, and Zhao, Shifeng

Subjects
FERROELECTRICITY, MATERIAL fatigue, DYSPROSIUM compounds, DOPING agents (Chemistry), IRON oxides, THIN film manufacturing
Abstract

Single-phase multiferroic BiFeO and rare-earth metal of dysprosium (Dy) doped BiFeO thin films were prepared by chemistry solution deposition. The structure and electrical properties of the BiFeO thin films were characterized and investigated. It shows that improved ferroelectric polarization, fatigue endurance and leakage current were obtained. Thus enhanced performance are attributed to the lattice distortion happened along with the structure transformation from the rhombohedral structures toward the coexistence of tetragonal and orthorhombic symmetry structures and the decreased oxygen vacancies after doping Dy. The present work provided an available way on enhancing ferroelectric polarization and fatigue endurance of BiFeO based thin films. [ABSTRACT FROM AUTHOR]

Published
2015
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11. Effects of Ho, Mn co-doping on ferroelectric fatigue of BiFeO3thin films

Author

Chen, Jieyu, Xing, Wenyu, Yun, Qi, Gao, Wei, Nie, Chenghong, and Zhao, Shifeng

Abstract

Ho, Mn, and Ho, Mn co-doped BiFeO3thin films were deposited on Pt (100)/Ti/SiO2/Si substrates using solution gelation. The ferroelectric fatigue properties were clearly improved after doping with Ho and Mn. The doped BiFeO3thin film displayed more strongly increased ferroelectric, leakage current, and fatigue properties compared with the pure BiFeO3thin film. Thus, the improved performance of the BiFeO3thin films depends on the structural transformation and reduced oxygen vacancy concentration. The present work provides a feasible approach to enhance the ferroelectric and fatigue properties of BiFeO3-based thin films.

Published
2015
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