Hydrothermal Synthesis and Photoluminescence Investigation of NaY(MoO4)2:Eu3+ Nanophosphor

被引：9

作者：

Park, Sung Wook ^{[1
]}

Noh, Hyeon Mi ^{[1
]}

Moon, Byung Kee ^{[1
]}

Choi, Byung Chun ^{[1
]}

Jeong, Jung Hyun ^{[1
]}

Yang, Hyun Kyoung ^{[2
]}

机构：

[1] Pukyong Natl Univ, Dept Phys, Busan 608737, South Korea

[2] Korea Inst Energy Res, Jeju Global Res Ctr, Jeju 695971, South Korea

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2014年 / 14卷 / 11期

关键词：

Hydrothermal Synthesis; Nanoparticle; Nanophosphor; Morphology Control; NaY(MoO4)(2); Crystal Structure; Photoluminescence; LUMINESCENT PROPERTIES; ENERGY-TRANSFER; PHOSPHOR; MOLYBDATES;

D O I：

10.1166/jnn.2014.9980

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An intense red-emitting NaY(MoO4)(2):Eu3+ nanophosphor was developed using a hydrothermal technique. A highly pure and single-phase NaY(MoO4)(2):Eu3+ nanopowder was obtained after sintering the as-prepared sample at 800 degrees C. The crystal structure and photoluminescence properties of this double molybdate were investigated. X-ray diffraction analysis showed that the NaY(MoO4)(2) nanoparticles have a scheelite-type tetragonal structure, without mixed phases. Rietveld analysis provided the atomic coordinates and Mo-O-rare-earth angles. The morphology of the molybdate precursor was controlled by adjusting the synthesis conditions. The pH was found to play a crucial role in the particle size and morphology distribution. The crystalline powder phosphor exhibited intense and efficient red emissions attributed to efficient energy-transfer from MoO42- to Eu3+. The chromaticity coordinates (x, y) of the NaY(MoO4)(2):Eu3+ phosphor sample correspond to (0.662, 0.337). The NaY(MoO4)(2):Eu3+ powder exhibited a deep-red emission under near-ultraviolet (UV) excitation, indicating a promising red phosphor for white-light-emitting diodes based on near-UV light-emitting diodes.

引用

页码：8724 / 8728

页数：5