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Preparation and Photoluminescence Enhancement of Au Nanoparticles Embedded LaPO4:Eu3+ Inverse Opals

Abstract

In this work, we present a facile preparation approach of Au nanoparticles embedded LaPO4:Eu3+ inverse opal photonic crystals. In the typical preparation process, the transparent LaPO4:Eu3+ sol including HAuCI4 was infiltrated into the opal templates. After the sintering, the 10‐20 nm Au nanoparticles were formed in the interior of nano‐sized wall of LaPO4:Eu3+ inverse opal and the Au nanoparticles embedded LaPO4:Eu3+ inverse opals were obtained. The luminescence of Au nanoparticles embedded LaPO4:Eu3+ inverse opal was investigated. The emission peaks located at the 593 (5D07F1), 618 (5D07F2) and 698 nm (5D07F4) from Eu3+ ions were observed. The 593, 618 and 698 nm emissions of Au nanoparticles embedded LaPO4:Eu3+ inverse opals were enhanced in contrast to these of LaPO4:Eu3+ inverse opal without the Au nanoparticles, which is from the excitation field enhancement caused by the localized surface plasmon resonance of Au nanoparticles.

This article is protected by copyright. All rights reserved.

Authors:   Zhuangzhuang Chai, Zhengwen Yang, Anjun Huang, Chengye Yu, Jianbei Qiu, Zhiguo Song
Journal:   Journal of the American Ceramic Society
Year:   2018
Pages:   n/a
DOI:   10.1111/jace.15444
Publication date:   20-Jan-2018
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