Synthesis and upconversion luminescence of NaYF 4:Yb 3+,Tm 3+/TiO 2 nanocrystal colloidal solution

Xiao Jie Xue; Weiping Qin; Dai Sheng Zhang; Dan Zhao; Guo Dong Wei; Ke Zhi Zheng; Li Li Wang; Guo Feng Wang

doi:10.1166/jnn.2010.2133

Synthesis and upconversion luminescence of NaYF ₄:Yb ³⁺,Tm ³⁺/TiO ₂ nanocrystal colloidal solution

Xiao Jie Xue
, Weiping Qin
, Dai Sheng Zhang
, Dan Zhao
, Guo Dong Wei
, Ke Zhi Zheng
, Li Li Wang
, Guo Feng Wang

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

NaYF ₄:Yb ³⁺,Tm ³⁺ upconversion nanocrystals were synthesized with oleic acid as a capping Mgand. The as-prepared samples were redispersed in cyclohexane, forming transparent and stable solutions which perform bright blue upconversion. Inducing TiO ₂ as the outer layer of the fluoride cores, we investigated the effect of TiO ₂ on the upconversion process. The transmission electron microscopy (TEM) analysis indicated that titania successfully formed a coating layer on the surface of NaYF ₄:Yb ³⁺,Tm ³⁺ nanoparticles, and the average diameters of the NaYF ₄:Yb ³⁺,Tm ³⁺ nanocrystals and the NaYF ₄:Yb ₃₊,Tm ³VTiO ₂ nanoparticles are about 14 and 40 nm, respectively. Under the excitation of a 980 nm laser, NaYF ₄:Yb ³⁺,Tm ³⁺ nanocrystals and TiO ₂-coated NaYF ₄:Yb ³⁺,Tm ^3/+ core/shell structure sample exhibited distinct upconversion luminescent properties.

Original language	English
Pages (from-to)	2028-2031
Number of pages	4
Journal	Journal of Nanoscience and Nanotechnology
Volume	10
Issue number	3
DOIs	https://doi.org/10.1166/jnn.2010.2133
State	Published - Mar 2010
Externally published	Yes

Keywords

Luminescence
NaYF
Nanocrystal
Upconversion

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10.1166/jnn.2010.2133

Cite this

@article{ab390e4d13d84e918c892506a6ce8337,

title = "Synthesis and upconversion luminescence of NaYF 4:Yb 3+,Tm 3+/TiO 2 nanocrystal colloidal solution",

abstract = "NaYF 4:Yb 3+,Tm 3+ upconversion nanocrystals were synthesized with oleic acid as a capping Mgand. The as-prepared samples were redispersed in cyclohexane, forming transparent and stable solutions which perform bright blue upconversion. Inducing TiO 2 as the outer layer of the fluoride cores, we investigated the effect of TiO 2 on the upconversion process. The transmission electron microscopy (TEM) analysis indicated that titania successfully formed a coating layer on the surface of NaYF 4:Yb 3+,Tm 3+ nanoparticles, and the average diameters of the NaYF 4:Yb 3+,Tm 3+ nanocrystals and the NaYF 4:Yb 3+,Tm 3VTiO 2 nanoparticles are about 14 and 40 nm, respectively. Under the excitation of a 980 nm laser, NaYF 4:Yb 3+,Tm 3+ nanocrystals and TiO 2-coated NaYF 4:Yb 3+,Tm 3/+ core/shell structure sample exhibited distinct upconversion luminescent properties.",

keywords = "Luminescence, NaYF, Nanocrystal, Upconversion",

author = "Xue, \{Xiao Jie\} and Weiping Qin and Zhang, \{Dai Sheng\} and Dan Zhao and Wei, \{Guo Dong\} and Zheng, \{Ke Zhi\} and Wang, \{Li Li\} and Wang, \{Guo Feng\}",

year = "2010",

month = mar,

doi = "10.1166/jnn.2010.2133",

language = "English",

volume = "10",

pages = "2028--2031",

journal = "Journal of Nanoscience and Nanotechnology",

issn = "1533-4880",

publisher = "American Scientific Publishers",

number = "3",

}

TY - JOUR

T1 - Synthesis and upconversion luminescence of NaYF 4:Yb 3+,Tm 3+/TiO 2 nanocrystal colloidal solution

AU - Xue, Xiao Jie

AU - Qin, Weiping

AU - Zhang, Dai Sheng

AU - Zhao, Dan

AU - Wei, Guo Dong

AU - Zheng, Ke Zhi

AU - Wang, Li Li

AU - Wang, Guo Feng

PY - 2010/3

Y1 - 2010/3

N2 - NaYF 4:Yb 3+,Tm 3+ upconversion nanocrystals were synthesized with oleic acid as a capping Mgand. The as-prepared samples were redispersed in cyclohexane, forming transparent and stable solutions which perform bright blue upconversion. Inducing TiO 2 as the outer layer of the fluoride cores, we investigated the effect of TiO 2 on the upconversion process. The transmission electron microscopy (TEM) analysis indicated that titania successfully formed a coating layer on the surface of NaYF 4:Yb 3+,Tm 3+ nanoparticles, and the average diameters of the NaYF 4:Yb 3+,Tm 3+ nanocrystals and the NaYF 4:Yb 3+,Tm 3VTiO 2 nanoparticles are about 14 and 40 nm, respectively. Under the excitation of a 980 nm laser, NaYF 4:Yb 3+,Tm 3+ nanocrystals and TiO 2-coated NaYF 4:Yb 3+,Tm 3/+ core/shell structure sample exhibited distinct upconversion luminescent properties.

AB - NaYF 4:Yb 3+,Tm 3+ upconversion nanocrystals were synthesized with oleic acid as a capping Mgand. The as-prepared samples were redispersed in cyclohexane, forming transparent and stable solutions which perform bright blue upconversion. Inducing TiO 2 as the outer layer of the fluoride cores, we investigated the effect of TiO 2 on the upconversion process. The transmission electron microscopy (TEM) analysis indicated that titania successfully formed a coating layer on the surface of NaYF 4:Yb 3+,Tm 3+ nanoparticles, and the average diameters of the NaYF 4:Yb 3+,Tm 3+ nanocrystals and the NaYF 4:Yb 3+,Tm 3VTiO 2 nanoparticles are about 14 and 40 nm, respectively. Under the excitation of a 980 nm laser, NaYF 4:Yb 3+,Tm 3+ nanocrystals and TiO 2-coated NaYF 4:Yb 3+,Tm 3/+ core/shell structure sample exhibited distinct upconversion luminescent properties.

KW - Luminescence

KW - NaYF

KW - Nanocrystal

KW - Upconversion

UR - https://www.scopus.com/pages/publications/77954976333

U2 - 10.1166/jnn.2010.2133

DO - 10.1166/jnn.2010.2133

M3 - Article

AN - SCOPUS:77954976333

SN - 1533-4880

VL - 10

SP - 2028

EP - 2031

JO - Journal of Nanoscience and Nanotechnology

JF - Journal of Nanoscience and Nanotechnology

IS - 3