Author/Authors :
Zhengwen Yang، نويسنده , , Dong Yan، نويسنده , , Zhiguo Song، نويسنده , , Dacheng Zhou، نويسنده , , Xue Yu، نويسنده , , Yong Yang، نويسنده , , Zhaoyi Yin، نويسنده , , Lei Yan، نويسنده , , Rongfei Wang، نويسنده , , Hangjun WU، نويسنده , , Jianbei Qiu، نويسنده ,
Abstract :
The SiO2: Tb, Yb inverse opals with photonic band gap at 465 or 543 nm were prepared, and an effect of photonic band gap on upconversion spontaneous emission from Tb3+ was investigated. The results show that the photonic band gap has a significant influence on the upconversion emission of the SiO2: Tb, Yb inverse opals. The upconversion luminescence of the Tb3+ ions is suppressed in the inverse opal compared with the luminescence of that of the reference sample.
Keywords :
Upconversion , Photoluminescence , Inverse opal , Photonic Band Gap
