Photoluminescence Enhancement of SiO2‐Coated LaPO4:Eu3+ Inverse Opals by Surface Plasmon Resonance of Ag Nanoparticles |
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| Authors: | Jun Li Zhengwen Yang Bo Shao Jianzhi Yang Yida Wang Jianbei Qiu Zhiguo Song |
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| Affiliation: | College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, China |
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| Abstract: | The surface plasmon resonance of Ag nanoparticles (NPs) and SiO2 coating had been extensively employed to improve the photoluminescence (PL) intensity of nanomaterials. In the article, the LaPO4:Eu3+ inverse opal photonic crystals were fabricated via combining a self‐assembly process with a sol–gel method. The SiO2 shells were formed on the skeleton surface of LaPO4:Eu3+ inverse opals and the Ag NPs were added into the voids of LaPO4:Eu3+ inverse opals with the SiO2 shells. The influence of the SiO2 shells and Ag NPs on the PL of the LaPO4:Eu3+ inverse opals were investigated. About sevenfold luminescence enhancement of LaPO4:Eu3+ inverse opals was obtained by the coordination action of surface plasmon absorption effects of Ag nanoparticle and silica‐coating effects. The luminescence enhancement mechanisms of LaPO4:Eu3+ inverse opals were discussed. |
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| Keywords: | Ag nanoparticles silica coating LaPO4 Eu3+ inverse opal photoluminescence |
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