Preparation and photoluminescence enhancement of Au nanoparticles embedded LaPO4:Eu3+ inverse opals. Issue 7 (6th February 2018)

• Record Type: Journal Article
• Authors: Chai, Zhuangzhuang; Yang, Zhengwen; Huang, Anjun; Yu, Chengye; Qiu, Jianbei; Song, Zhiguo
• Is Part Of: Journal of the American Ceramic Society. Volume 101:Issue 7(2018)
• Page Start: 2689
• Page End: 2694
• Publication Date: 2018-02-06
• Subjects: Au nanoparticles -- enhancement -- LaPO4: Eu3+ inverse opal -- Luminescence; Ceramics -- Periodicals; 620.1405
• DOI: 10.1111/jace.15444
• Languages: English
• ISSNs: 0002-7820

Abstract

Abstract: In this work, we present a facile preparation approach of Au nanoparticles embedded LaPO4 :Eu 3+ inverse opal photonic crystals. In the typical preparation process, the transparent LaPO4 :Eu 3+ 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 :Eu 3+ inverse opal and the Au nanoparticles embedded LaPO4 :Eu 3+ inverse opals were obtained. The luminescence of Au nanoparticles embedded LaPO4 :Eu 3+ inverse opal was investigated. The emission peaks located at the 593 ( 5 D0 → 7 F1 ), 618 ( 5 D0 → 7 F2 ) and 698 nm ( 5 D0 → 7 F4 ) from Eu 3+ ions were observed. The 593, 618, and 698 nm emissions of Au nanoparticles embedded LaPO4 :Eu 3+ inverse opals were enhanced in contrast to these of LaPO4 :Eu 3+ inverse opal without the Au nanoparticles, which is from the excitation field enhancement caused by the localized surface plasmon resonance of Au nanoparticles.