TY - JOUR
T1 - Effects of (Dy, Zn) co-doping on structural and electrical properties of BiFeO
3
thin films
AU - Raghavan, C. M.
AU - Kim, J. W.
AU - Kim, S. S.
PY - 2014/1/1
Y1 - 2014/1/1
N2 -
Pure BiFeO
3
(BFO) and (Dy, Zn) co-doped (Bi
0.9
Dy
0.1
)(Fe
0.975
Zn
0.025
)O
3-δ
(BDFZO) thin films were prepared on Pt(111)/Ti/SiO
2
/Si(100) substrates by a chemical solution deposition method. Effects of (Dy, Zn) co-doping on the structural and electrical properties of BFO were studied. Both the thin films were crystallized as randomly oriented polycrystalline distorted rhombohedral structures, with no detectable impurity and secondary phases. Large remnant polarization (2P
r
) of 47 μC/cm
2
, low coercive electric field (2E
c
) of 925 kV/cm at 1143 kV/cm and low leakage current density of 1.30×10
-6
A/cm
2
at 100 kV were measured for the BDFZO thin film. The improved electrical properties of the BDFZO thin film are ascribed to the stabilization of perovskite structure, defect complex formation between acceptors Zn
2+
and oxygen vacancies of [(ZnFe3
+
2+)′-(VO2
-
••)], pronounced off-center displacement in the perovskite and structural distortion by the Dy and Zn ions doping.
AB -
Pure BiFeO
3
(BFO) and (Dy, Zn) co-doped (Bi
0.9
Dy
0.1
)(Fe
0.975
Zn
0.025
)O
3-δ
(BDFZO) thin films were prepared on Pt(111)/Ti/SiO
2
/Si(100) substrates by a chemical solution deposition method. Effects of (Dy, Zn) co-doping on the structural and electrical properties of BFO were studied. Both the thin films were crystallized as randomly oriented polycrystalline distorted rhombohedral structures, with no detectable impurity and secondary phases. Large remnant polarization (2P
r
) of 47 μC/cm
2
, low coercive electric field (2E
c
) of 925 kV/cm at 1143 kV/cm and low leakage current density of 1.30×10
-6
A/cm
2
at 100 kV were measured for the BDFZO thin film. The improved electrical properties of the BDFZO thin film are ascribed to the stabilization of perovskite structure, defect complex formation between acceptors Zn
2+
and oxygen vacancies of [(ZnFe3
+
2+)′-(VO2
-
••)], pronounced off-center displacement in the perovskite and structural distortion by the Dy and Zn ions doping.
KW - A. Films
KW - C. Electrical properties
KW - C. Ferroelectric properties
KW - D. Perovskites
UR - http://www.scopus.com/inward/record.url?scp=84888011721&partnerID=8YFLogxK
UR - https://www.sciencedirect.com/science/article/pii/S0272884213009425?via%3Dihub
U2 - 10.1016/j.ceramint.2013.07.148
DO - 10.1016/j.ceramint.2013.07.148
M3 - Article
AN - SCOPUS:84888011721
SN - 0272-8842
VL - 40
SP - 2281
EP - 2286
JO - Ceramics International
JF - Ceramics International
IS - 1 PART B
ER -