TY - JOUR
T1 - Enhancement of optical transparency in Bi2O3-modified (K0.5Na0.5)0.9Sr0.1Nb0.9Ti0.1O3 ceramics for electro-optic applications
AU - Liu, Zhiyong
AU - Fan, Huiqing
AU - Peng, Biaolin
N1 - Publisher Copyright:
© 2015, Springer Science+Business Media New York.
PY - 2015/12/30
Y1 - 2015/12/30
N2 - Transparent relaxor ferroelectrics, (K0.5Na0.5)0.9Sr0.1Nb0.9Ti0.1O3–x%Bi2O3 (x = 0, 0.5, 1.0, 1.5, and 2, abbreviated as KNSNT-10x), were fabricated using a pressureless sintering method. With the modification of Bi2O3, the crystal phase of KNSNT ceramics transformed from tetragonal to cubic-like symmetry, and dielectric behaviors became more relaxor like. These changes could reduce the light scattering arisen from birefringence and long-range ordering structure, thus enhancing the optical properties. For KNSNT-10 transparent ceramics, fingerprint morphological nanodomains were observed in the transmission electron microscope image, which made the ceramics sensitive to electric field. Therefore, a large effective linear electro-optic coefficient of 26.1 pm/V was obtained for the KNSNT-10 ceramics, and it is higher than the value (19.9 pm/V) for LiNbO3 single crystal.
AB - Transparent relaxor ferroelectrics, (K0.5Na0.5)0.9Sr0.1Nb0.9Ti0.1O3–x%Bi2O3 (x = 0, 0.5, 1.0, 1.5, and 2, abbreviated as KNSNT-10x), were fabricated using a pressureless sintering method. With the modification of Bi2O3, the crystal phase of KNSNT ceramics transformed from tetragonal to cubic-like symmetry, and dielectric behaviors became more relaxor like. These changes could reduce the light scattering arisen from birefringence and long-range ordering structure, thus enhancing the optical properties. For KNSNT-10 transparent ceramics, fingerprint morphological nanodomains were observed in the transmission electron microscope image, which made the ceramics sensitive to electric field. Therefore, a large effective linear electro-optic coefficient of 26.1 pm/V was obtained for the KNSNT-10 ceramics, and it is higher than the value (19.9 pm/V) for LiNbO3 single crystal.
UR - http://www.scopus.com/inward/record.url?scp=84942818295&partnerID=8YFLogxK
U2 - 10.1007/s10853-015-9360-y
DO - 10.1007/s10853-015-9360-y
M3 - 文章
AN - SCOPUS:84942818295
SN - 0022-2461
VL - 50
SP - 7958
EP - 7966
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 24
ER -