Novel composite nanomaterials with superior thermal and pressure stability for potential LED applications

被引：12

作者：

Gao, M. ^{[1
,2
]}

Yao, J. C. ^{[1
,2
]}

Yan, C. ^{[1
,2
]}

Li, X. F. ^{[1
,2
]}

Hu, J. ^{[1
,2
]}

Hu, T. J. ^{[1
,2
]}

Chen, L. ^{[1
,2
]}

Wang, Y. X. ^{[1
,2
]}

Zhang, Y. J. ^{[1
,2
]}

Liu, H. L. ^{[1
,2
]}

Liu, Y. ^{[1
,2
]}

Cao, L. H. ^{[1
,2
]}

Cao, Y. T. ^{[1
,2
]}

Yang, J. H. ^{[1
,2
]}

机构：

[1] Jilin Normal Univ, Minist Educ, Key Lab Funct Mat Phys & Chem, Changchun 130012, Jilin, Peoples R China

[2] Jilin Normal Univ, Natl Demonstrat Ctr Expt Phys Educ, Siping 136000, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2018年 / 734卷

基金：

中国国家自然科学基金;

关键词：

ZnO@Eu2O3; Core/shell nanomaterials; Temperature; Pressure; Optical properties; DOPED ZNO; OPTICAL-PROPERTIES; ENERGY-TRANSFER; EU; LUMINESCENCE; NANOPARTICLES; PHOSPHOR; SURFACE; PHOTOLUMINESCENCE; NANOCRYSTALS;

D O I：

10.1016/j.jallcom.2017.11.042

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel white-emitting ZnO@Eu2O3 core/shell nanomaterials was synthesized by a green chemical method. The temperature and pressure dependence of the photoluminescence (PL) transition associated with the fundamental bandgap of ZnO@Eu2O3 core/shell nanomaterials have been studied. The activation energy of ZnO@Eu2O3 is 0.27 eV, which is higher than the commercial Y2O3:Eu3+ The near-bandedge emission is found to shift toward higher energy with applied pressure at a rate of 32.7 MeV/GPa with a small second-order term of -0.28 MeV/GPa(2). The samples are very stable with white emission under 8 GPa, which are useful for white LEDs. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：282 / 289

页数：8

共 67 条

[1] Synthesis and characterization of nanostructures of ZnO and ZnO/Graphene composites for the application in hybrid solar cells [J].