TY - JOUR
T1 - Enhanced energy storage density and efficiency in Sm3+-doped ((Bi0.5Na0.5)0.7(Sr0.7Bi0.2)0.3))TiO3 ceramics
AU - Zhao, Nianshun
AU - Fan, Huiqing
AU - Li, Cheng
AU - Huang, Feng
AU - Cao, Jianhua
AU - Li, Zheng
N1 - Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2021/10
Y1 - 2021/10
N2 - Lead-free ceramics ((Bi0.5Na0.5)0.7(Sr0.7Bi0.2)0.3)1-xSmx)TiO3 (x = 0.0, 0.005, 0.01, 0.02, 0.03) with a novel phase boundary structure were successfully synthesized. All samples sintered well and shown pure perovskite structure. The doping of Sm3+ inhibits the grain growth and enhanced the relaxor properties. Besides, the activity of polar nanoregion (PNRs) is improved. Ferroelectric analysis showed that proper Sm3+ doping played a pegging role on the saturated polarized Pm, leading to a higher and slimmer P-E loop. As a result, a large energy storage density (~ 1.25 J/cm3) with high energy efficiency (~ 73%) were achieved at x = 0.005 under an electric field of 90 kV/cm. Further, the sample was found to have good temperature stability between room temperature and 110 °C. This study shows that ceramic material has great potential for the application of high-temperature stability energy storage capacitors.
AB - Lead-free ceramics ((Bi0.5Na0.5)0.7(Sr0.7Bi0.2)0.3)1-xSmx)TiO3 (x = 0.0, 0.005, 0.01, 0.02, 0.03) with a novel phase boundary structure were successfully synthesized. All samples sintered well and shown pure perovskite structure. The doping of Sm3+ inhibits the grain growth and enhanced the relaxor properties. Besides, the activity of polar nanoregion (PNRs) is improved. Ferroelectric analysis showed that proper Sm3+ doping played a pegging role on the saturated polarized Pm, leading to a higher and slimmer P-E loop. As a result, a large energy storage density (~ 1.25 J/cm3) with high energy efficiency (~ 73%) were achieved at x = 0.005 under an electric field of 90 kV/cm. Further, the sample was found to have good temperature stability between room temperature and 110 °C. This study shows that ceramic material has great potential for the application of high-temperature stability energy storage capacitors.
UR - http://www.scopus.com/inward/record.url?scp=85114153107&partnerID=8YFLogxK
U2 - 10.1007/s10854-021-06950-y
DO - 10.1007/s10854-021-06950-y
M3 - 文章
AN - SCOPUS:85114153107
SN - 0957-4522
VL - 32
SP - 24930
EP - 24938
JO - Journal of Materials Science: Materials in Electronics
JF - Journal of Materials Science: Materials in Electronics
IS - 20
ER -
