Upconversion luminescence enhancement of SiO2:Yb3+, Tb3+ inverse opal photonic crystal by gold nanoparticles

作者：Yang, Jianzhi; Yang, Zhengwen^*; Wang, Yida; Qiu, Jianbei; Song, Zhiguo

来源：Journal of Non-Crystalline Solids, 2016, 437: 53-57.

DOI：10.1016/j.jnoncrysol.2016.01.011

• Upconversion emission
• SiO2:Yb3+, Tb3+
• Au nanoparticles
• Inverse opal

The SiO2:Yb3+, Tb3+ inverse opal photonic crystals containing gold nanoparticles were prepared by the self assembly technique combined with a sol gel method, and their up-conversion luminescence properties have been investigated under the excitation of 980 nm. The upconversion emission bands from the Tb3+ ions were located at 489, 544, 585 and 622 nm in the SiO2:Yb3+, Tb3+ inverse opals. The influence of Au nanoparticles on the upconversion emission was observed in the SiO2:Yb3+, Tb3+ inverse opals. The upconversion emission of SiO2:Yb3+, Tb3+ inverse opals was enhanced, which is from the population increasing of D-5(4) luminescent level of Tb3+ ions induced by surface plasmon effects of Au nanoparticles.

• 出版日期2016-4-1
• 单位昆明理工大学