Synthesis and upconversion luminescence of NaYF 4:Yb, Tm/TiO 2 core/shell nanoparticles with controllable shell thickness

Daisheng Zhang; Dan Zhao; Kezhi Zheng; Ning Liu; Weiping Qin

doi:10.1166/jnn.2011.5251

Synthesis and upconversion luminescence of NaYF ₄:Yb, Tm/TiO ₂ core/shell nanoparticles with controllable shell thickness

Daisheng Zhang
, Dan Zhao
, Kezhi Zheng
, Ning Liu
, Weiping Qin

Jilin University
Beihua University

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

Abstract

NaYF ₄:Yb, Tm/TiO ₂ core/shell nanoparticles were synthesized by a two-step method. First, the NaYF ₄:Yb, Tm nanocrystals were prepared using solvothermal technology; then, TiO ₂ shells were deposited on the nanocrystals by the hydrolysis of titanium ethoxide (TEOT) to form core/shell structures. By controlling the reaction time, we can adjust the thickness of TiO ₂ shell and thereby the weight percentage of TiO ₂ in the core/shell nanoparticles. The effect of shell thickness on the upconversion fluorescence of NaYF ₄:Yb, Tm nanocrystals was investigated in detail.

Original language	English
Pages (from-to)	9761-9764
Number of pages	4
Journal	Journal of Nanoscience and Nanotechnology
Volume	11
Issue number	11
DOIs	https://doi.org/10.1166/jnn.2011.5251
Publication status	Published - 2011
Externally published	Yes

Keywords

Core/Shell
NaYF
Rare Earth
TiO
Upconversion Luminescence

Access to Document

10.1166/jnn.2011.5251

Cite this

@article{b03eadee995c4637af1d3d12aef4ae8d,

title = "Synthesis and upconversion luminescence of NaYF 4:Yb, Tm/TiO 2 core/shell nanoparticles with controllable shell thickness",

abstract = "NaYF 4:Yb, Tm/TiO 2 core/shell nanoparticles were synthesized by a two-step method. First, the NaYF 4:Yb, Tm nanocrystals were prepared using solvothermal technology; then, TiO 2 shells were deposited on the nanocrystals by the hydrolysis of titanium ethoxide (TEOT) to form core/shell structures. By controlling the reaction time, we can adjust the thickness of TiO 2 shell and thereby the weight percentage of TiO 2 in the core/shell nanoparticles. The effect of shell thickness on the upconversion fluorescence of NaYF 4:Yb, Tm nanocrystals was investigated in detail.",

keywords = "Core/Shell, NaYF, Rare Earth, TiO, Upconversion Luminescence",

author = "Daisheng Zhang and Dan Zhao and Kezhi Zheng and Ning Liu and Weiping Qin",

year = "2011",

doi = "10.1166/jnn.2011.5251",

language = "English",

volume = "11",

pages = "9761--9764",

journal = "Journal of Nanoscience and Nanotechnology",

issn = "1533-4880",

number = "11",

}

TY - JOUR

T1 - Synthesis and upconversion luminescence of NaYF 4:Yb, Tm/TiO 2 core/shell nanoparticles with controllable shell thickness

AU - Zhang, Daisheng

AU - Zhao, Dan

AU - Zheng, Kezhi

AU - Liu, Ning

AU - Qin, Weiping

PY - 2011

Y1 - 2011

N2 - NaYF 4:Yb, Tm/TiO 2 core/shell nanoparticles were synthesized by a two-step method. First, the NaYF 4:Yb, Tm nanocrystals were prepared using solvothermal technology; then, TiO 2 shells were deposited on the nanocrystals by the hydrolysis of titanium ethoxide (TEOT) to form core/shell structures. By controlling the reaction time, we can adjust the thickness of TiO 2 shell and thereby the weight percentage of TiO 2 in the core/shell nanoparticles. The effect of shell thickness on the upconversion fluorescence of NaYF 4:Yb, Tm nanocrystals was investigated in detail.

AB - NaYF 4:Yb, Tm/TiO 2 core/shell nanoparticles were synthesized by a two-step method. First, the NaYF 4:Yb, Tm nanocrystals were prepared using solvothermal technology; then, TiO 2 shells were deposited on the nanocrystals by the hydrolysis of titanium ethoxide (TEOT) to form core/shell structures. By controlling the reaction time, we can adjust the thickness of TiO 2 shell and thereby the weight percentage of TiO 2 in the core/shell nanoparticles. The effect of shell thickness on the upconversion fluorescence of NaYF 4:Yb, Tm nanocrystals was investigated in detail.

KW - Core/Shell

KW - NaYF

KW - Rare Earth

KW - TiO

KW - Upconversion Luminescence

UR - https://www.scopus.com/pages/publications/84863139892

U2 - 10.1166/jnn.2011.5251

DO - 10.1166/jnn.2011.5251

M3 - Article

AN - SCOPUS:84863139892

SN - 1533-4880

VL - 11

SP - 9761

EP - 9764

JO - Journal of Nanoscience and Nanotechnology

JF - Journal of Nanoscience and Nanotechnology

IS - 11

ER -

Synthesis and upconversion luminescence of NaYF ₄:Yb, Tm/TiO ₂ core/shell nanoparticles with controllable shell thickness

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this