TY - JOUR
T1 - Specific features of spectral and electrical properties of double-perovskite LnBaCo2O5+δ (Ln=lanthanides) under solar irradiation
AU - Lu, Yi
AU - Zhang, Rong
AU - Wei, Ling
AU - Lu, Chunhua
AU - Ni, Yaru
AU - Xu, Zhongzi
N1 - Publisher Copyright:
© 2016 Elsevier Ltd and Techna Group S.r.l.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Cobalt-based perovskite oxides, LnBaCo2O5+δ (Ln=La to Lu), were investigated as potential variable electrical and thermal radiative materials under solar irradiation. The particular Ln3+ dopant has a significant effect on the oxide's phase structure, spectral reflectivity, electrical conductivity, and thermal radiative properties. Stable, cation-ordered oxides with layered lattice structures were obtained with medium-size Ln3+ ions. The general features of the electrical and spectral reflective properties of LnBaCo2O5+δ (Ln=La, Nd, Sm to Ho) are discussed. It is shown that LnBaCo2O5+δ (Ln=Sm to Ho) has a significant insulator–metal transition under solar irradiation, whereas LnBaCo2O5+δ (Ln=La, Nd) has a lower infrared emissivity at high temperatures due to the metal-like optical behavior.
AB - Cobalt-based perovskite oxides, LnBaCo2O5+δ (Ln=La to Lu), were investigated as potential variable electrical and thermal radiative materials under solar irradiation. The particular Ln3+ dopant has a significant effect on the oxide's phase structure, spectral reflectivity, electrical conductivity, and thermal radiative properties. Stable, cation-ordered oxides with layered lattice structures were obtained with medium-size Ln3+ ions. The general features of the electrical and spectral reflective properties of LnBaCo2O5+δ (Ln=La, Nd, Sm to Ho) are discussed. It is shown that LnBaCo2O5+δ (Ln=Sm to Ho) has a significant insulator–metal transition under solar irradiation, whereas LnBaCo2O5+δ (Ln=La, Nd) has a lower infrared emissivity at high temperatures due to the metal-like optical behavior.
KW - B. X-ray methods
KW - C. Electrical conductivity
KW - C. Thermal properties
KW - D. Perovskites
UR - http://www.scopus.com/inward/record.url?scp=84995511603&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2016.10.061
DO - 10.1016/j.ceramint.2016.10.061
M3 - 文章
AN - SCOPUS:84995511603
SN - 0272-8842
VL - 43
SP - 1186
EP - 1192
JO - Ceramics International
JF - Ceramics International
IS - 1
ER -