TY - JOUR
T1 - Influence of Mn 2+ on the electrical properties of textured KNN thick films
AU - Fu, Fang
AU - Shen, Bo
AU - Zhai, Jiwei
AU - Xu, Zhengkui
AU - Yao, Xi
PY - 2012/1
Y1 - 2012/1
N2 - Textured K 0.5Na 0.5NbO 3 thick film was prepared by the reactive templated grain growth method. The effects of Mn 2+ doping on the phase structure, microstructure and electrical properties of the K 0.5Na 0.5NbO 3 textured thick film were investigated. The grain orientation degree decreased with increasing Mn 2+ and reduced to 50% for the thick film with 5 mol% Mn 2+. The addition of Mn 2+ improved the microstructure of the thick film. The electric properties of the thick film were also enhanced because of the high densification, the vacancy compensation effect and the acceptor doping effects of Mn 2+. The K 0.5Na 0.5NbO 3 thick film with 2 mol% Mn 2+ doping possessed the optimum properties: P r = 3.05 μC/cm 2, E c = 4.79 kV/cm, J = 4.6 × 10 -6A/cm 2 (at 25 kV/cm) and d33=124pm/V. © 2011 Elsevier Ltd and Techna Group S.r.l.
AB - Textured K 0.5Na 0.5NbO 3 thick film was prepared by the reactive templated grain growth method. The effects of Mn 2+ doping on the phase structure, microstructure and electrical properties of the K 0.5Na 0.5NbO 3 textured thick film were investigated. The grain orientation degree decreased with increasing Mn 2+ and reduced to 50% for the thick film with 5 mol% Mn 2+. The addition of Mn 2+ improved the microstructure of the thick film. The electric properties of the thick film were also enhanced because of the high densification, the vacancy compensation effect and the acceptor doping effects of Mn 2+. The K 0.5Na 0.5NbO 3 thick film with 2 mol% Mn 2+ doping possessed the optimum properties: P r = 3.05 μC/cm 2, E c = 4.79 kV/cm, J = 4.6 × 10 -6A/cm 2 (at 25 kV/cm) and d33=124pm/V. © 2011 Elsevier Ltd and Techna Group S.r.l.
KW - A. Films
KW - A. Tape casting
KW - C. Electrical properties
KW - D. Perovskites
UR - http://www.scopus.com/inward/record.url?scp=84555195507&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84555195507&origin=recordpage
U2 - 10.1016/j.ceramint.2011.04.103
DO - 10.1016/j.ceramint.2011.04.103
M3 - RGC 21 - Publication in refereed journal
SN - 0272-8842
VL - 38
JO - Ceramics International
JF - Ceramics International
IS - SUPPL. 1
ER -