Synthesis and Optical Properties of Copper Doped Y$lt;inf$gt;2$lt;/inf$gt;Ba$lt;inf$gt;2$lt;/inf$gt;O$lt;inf$gt;5$lt;/inf$gt; Pigments with High Near-infrared Reflectance

Y 2 Ba 2 O 5 , , , , , ( , 214122) : -, Y 2 Ba (2-x) Cu x O 5 (x=00.25 0.500.75 1.0), X (XRD)(SEM)UV-vis-NIR , Y 2 Ba 2 O 5 , Y 2 Ba 2 O 5 62.1 nm 54.7 nm Cu 2+ Y 2 Ba 2 O 5 Ba 2+ , (a*=-21.61), 2.30 eV 2.04 eV; , 150~300 nm Cu 2+ , Cu 2+ x=0.50 (68.80%)(45.95%), Y 2 Ba (2-x) Cu x O 5 ""