Enhanced up-conversion luminescence efficiency of heterogeneous hetero-phase α-NaLuF4:Yb/Er@ β-NaYF4:Yb core-shell structure nanocrystals

被引：6

作者：

Han, Qi ^{[1
]}

Sun, Jiancheng ^{[1
]}

Wu, Haoyu ^{[1
]}

Zou, Yuzhen ^{[1
]}

Song, Yinglin ^{[1
]}

Wang, Yuxiao ^{[1
]}

Zhang, Xueru ^{[1
]}

机构：

[1] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2020年 / 848卷

基金：

中国国家自然科学基金;

关键词：

Up-conversion luminescence; Heterogeneous core-shell; Hetero-phase core-shell; Luminescence efficiency enhancement; Energy transfer; NANOPARTICLES; NAYF4; FLUORESCENCE; EMISSION; GROWTH; PLASMON; PHASE; YB3+;

D O I：

10.1016/j.jallcom.2020.156543

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：

The heterogeneous hetero-phase alpha-NaLuF4:Yb/Er@ beta-NaYF4:Yb core-shell structure nanocrystals with small particle size can be induced via heterogeneous core induction successfully. And the crystal phase of core-shell structure nanocrystals can be greatly affected through adjusting the amount ratio of core to shell. The mutual induction of phase transformation between heterogeneous core and shell is investigated. Under the 980 nm laser excitation, the luminescence enhancement ability of heterogeneous hetero-phase alpha-NaLuF4:Yb/Er@ beta-NaYF4:Yb core-shell structure nanocrystals is much higher than that of the heterogeneous homo-phase core-shell structure nanocrystals synthesized at the same condition. The up-conversion luminescence efficiency of heterogeneous hetero-phase alpha-NaLuF4:Yb/Er@ beta-NaYF4:Yb core-shell structure nanocrystals is highest when the Yb3+ ion concentration in core and shell is the same. In addition, the population of up-conversion red emission can be influenced by enhancing the cross relaxation process when the concentration of Yb3+ ions in shell layer is increased. These results deepen the understanding of the growth and energy transfer process of the core-shell structure nanocrystals and make the heterogeneous hetero-phase alpha-NaLuF4:Yb/Er@ beta-NaYF4:Yb nanocrystals suitable for using in the biomedicine application. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：9

共 42 条

[1] Size-dependent upconversion luminescence in Er3+/Yb3+-codoped nanocrystalline yttria:: Saturation and thermal effects [J].

Bai, Xue ;

Song, Hongwei ;

Pan, Guohui ;

Lei, Yanqiang ;

Wang, Tie ;

Ren, Xingguang ;

Lu, Shaozhe ;

Dong, Biao ;

Dai, Qilin ;

Fan, Libo .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (36) :13611-13617

[2] Direct Identification of Surface Defects and Their Influence on the Optical Characteristics of Upconversion Nanoparticles [J].

Bian, Wenjuan ;

Lin, Yue ;

Wang, Ting ;

Yu, Xue ;

Qiu, Jianbei ;

Zhou, Meng ;

Luo, Hongmei ;

Yu, Siu Fung ;

Xu, Xuhui .

ACS NANO, 2018, 12 (04) :3623-3628

[3] Facile one-pot synthesis of hydrophilic NaYF4:Yb,Er@NaYF4:Yb active-core/active-shell nanoparticles with enhanced upconversion luminescence [J].

Chen, Meilian ;

Ma, Yan ;

Li, Mingyong .

MATERIALS LETTERS, 2014, 114 :80-83

[4] NIR-to-Red Upconversion Nanoparticles with Minimized Heating Effect for Synchronous Multidrug Resistance Tumor Imaging and Therapy [J].

Chen, Xiaoqin ;

Tang, Yajun ;

Liu, Amin ;

Zhu, Yuda ;

Gao, Dong ;

Yang, You ;

Sun, Jing ;

Fan, Hongsong ;

Zhang, Xingdong .

ACS APPLIED MATERIALS & INTERFACES, 2018, 10 (17) :14378-14388

[5] Controlled synthesis of β-NaYF4:Yb3+/Er3+ microstructures with morphology- and size-dependent upconversion luminescence [J].

Ding, Mingye ;

Yin, Shilong ;

Ni, Yaru ;

Lu, Chunhua ;

Chen, Daqin ;

Zhong, Jiasong ;

Ji, Zhenguo ;

Xu, Zhongzi .

CERAMICS INTERNATIONAL, 2015, 41 (06) :7411-7420

[6] Hydrothermal synthesis and application of Ho3+-activated NaYbF4 bifunctional upconverting nanoparticles for in vitro cell imaging and latent fingerprint detection [J].

Du, Peng ;

Zhang, Peng ;

Kang, Seong Ho ;

Yu, Jae Su .

SENSORS AND ACTUATORS B-CHEMICAL, 2017, 252 :584-591

[7] Ion-redistribution induced efficient upconversion in β-NaYF4:20%Yb3+, 2%Er3+ microcrystals with well controlled morphology and size [J].

Fan, Shaohua ;

Wang, Shikai ;

Yu, Lu ;

Sun, Hongtao ;

Gao, Guojun ;

Hu, Lili .

OPTICS EXPRESS, 2017, 25 (01) :180-190

[8] Precise Tuning of Surface Quenching for Luminescence Enhancement in Core-Shell Lanthanide-Doped Nanocrystals [J].

Fischer, Stefan ;

Bronstein, Noah D. ;

Swabeck, Joseph K. ;

Chan, Emory M. ;

Alivisatos, A. Paul .

NANO LETTERS, 2016, 16 (11) :7241-7247

[9] Lutetium doping for making big core and core-shell upconversion nanoparticles [J].

Huang, K. ;

Jayakumar, M. K. G. ;

Zhang, Y. .

JOURNAL OF MATERIALS CHEMISTRY C, 2015, 3 (39) :10267-10272

[10] Efficient upconversion fluorescence in NaYF4: Yb3+, Er3+/mNaYF4 multilayer core-shell nanoparticles [J].

Huang, Qiying ;

Ye, Weihao ;

Jiao, Xianfu ;

Yu, Linliang ;

Liu, Yingliang ;

Liu, Xiaotang .

JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 763 :216-222

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