Preparation and photoluminescence enhancement of silica-coated LaPO4:Eu3+ three dimensional ordered macroporous films

作者：Li, Jun; Yang, Zhengwen^*; Shao, Bo; Yang, Jianzhi; Wang, Yida; Qiu, Jianbei; Song, Zhiguo; Yang, Yong

来源：Ceramics International, 2015, 41(6): 8109-8113.

DOI：10.1016/j.ceramint.2015.03.012

• Photoluminescence
• SiO2-coated LaPO4:Eu3+
• Three dimensional ordered macroporous
• Enhancement

The silica-coated LaPO4:Eu3+ three dimensional ordered macroporous (3DOM) materials were prepared via a template-assisted process. The influence of SiO2 shell on photoluminescence of LaPO4:Eu3+ 3DOM materials was investigated. The photoluminescence intensity of LaPO4:Eu3+ 3DOM materials was strongly enhanced due to the suppression of surface quenching effect caused by the formation of SiO2 shells. The luminescence lifetime change of LaPO4:Eu3+ 3DOM material after and before SiO2 shell was observed, which is attributed to the medium refractive index variety of the LaPO4:Eu3+ 3DOM material caused by formation of SiO2 shells.

• 出版日期2015-7
• 单位昆明理工大学