Synthesis and upconversion luminescence of YF 3:Yb 3+, Tm 3+and TiO 2-coated YF 3:Yb 3+,Tm 3+ microcrystals

Daisheng Zhang; Weiping Qin; Guofeng Wang; Guodong Wei; Lili Wang; Peifen Zhu; Ryongjin Kim; Fuheng Ding; Kezhi Zheng; Ning Liu

doi:10.1166/jnn.2010.2153

Synthesis and upconversion luminescence of YF ₃:Yb ³⁺, Tm ³⁺and TiO ₂-coated YF ₃:Yb ³⁺,Tm ³⁺ microcrystals

Daisheng Zhang, Weiping Qin, Guofeng Wang, Guodong Wei, Lili Wang, Peifen Zhu, Ryongjin Kim, Fuheng Ding, Kezhi Zheng, Ning Liu

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

Abstract

YF ₃:Yb ³⁺,Tm ³⁺ microcrystals were prepared by a microemulsion method. The microcrystals were coated with TiO ₂ by hydrolysis of titanium n-butoxide (TBOT). Transform electron microscopy and X-ray diffraction were used to characterize the core/shell materials. The results indicated that the low TBOT/YF3 molar ratio was favorable to preparing the uniform TiO ₂ coatings. The upconversion luminescence properties of YF ₃:Yb ³⁺,Tm ³⁺ and TiO ₂-coated YF ₃:Yb ³⁺,Tm ³⁺ microcrystals were studied under 980-nm excitation. The ¹I ₆→ ³H ₆, ¹I ₆→ F4, ¹D ₂→ ³H ₆, ¹D ₂→ ³F ₄, ¹G ₄→ ³H ₆, and ¹G ₄→ ³F ₄ emissions were observed. The upconversion mechanisms were discussed in detail.

Original language	English
Pages (from-to)	2032-2035
Number of pages	4
Journal	Journal of Nanoscience and Nanotechnology
Volume	10
Issue number	3
DOIs	https://doi.org/10.1166/jnn.2010.2153
Publication status	Published - Mar 2010
Externally published	Yes

Keywords

Core-Shell
Rare earth
TiO
Upconversion luminescence

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title = "Synthesis and upconversion luminescence of YF 3:Yb 3+, Tm 3+and TiO 2-coated YF 3:Yb 3+,Tm 3+ microcrystals",

abstract = "YF 3:Yb 3+,Tm 3+ microcrystals were prepared by a microemulsion method. The microcrystals were coated with TiO 2 by hydrolysis of titanium n-butoxide (TBOT). Transform electron microscopy and X-ray diffraction were used to characterize the core/shell materials. The results indicated that the low TBOT/YF3 molar ratio was favorable to preparing the uniform TiO 2 coatings. The upconversion luminescence properties of YF 3:Yb 3+,Tm 3+ and TiO 2-coated YF 3:Yb 3+,Tm 3+ microcrystals were studied under 980-nm excitation. The 1I 6→ 3H 6, 1I 6→ F4, 1D 2→ 3H 6, 1D 2→ 3F 4, 1G 4→ 3H 6, and 1G 4→ 3F 4 emissions were observed. The upconversion mechanisms were discussed in detail.",

keywords = "Core-Shell, Rare earth, TiO, Upconversion luminescence",

author = "Daisheng Zhang and Weiping Qin and Guofeng Wang and Guodong Wei and Lili Wang and Peifen Zhu and Ryongjin Kim and Fuheng Ding and Kezhi Zheng and Ning Liu",

year = "2010",

month = mar,

doi = "10.1166/jnn.2010.2153",

language = "English",

volume = "10",

pages = "2032--2035",

journal = "Journal of Nanoscience and Nanotechnology",

issn = "1533-4880",

number = "3",

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TY - JOUR

T1 - Synthesis and upconversion luminescence of YF 3:Yb 3+, Tm 3+and TiO 2-coated YF 3:Yb 3+,Tm 3+ microcrystals

AU - Zhang, Daisheng

AU - Qin, Weiping

AU - Wang, Guofeng

AU - Wei, Guodong

AU - Wang, Lili

AU - Zhu, Peifen

AU - Kim, Ryongjin

AU - Ding, Fuheng

AU - Zheng, Kezhi

AU - Liu, Ning

PY - 2010/3

Y1 - 2010/3

N2 - YF 3:Yb 3+,Tm 3+ microcrystals were prepared by a microemulsion method. The microcrystals were coated with TiO 2 by hydrolysis of titanium n-butoxide (TBOT). Transform electron microscopy and X-ray diffraction were used to characterize the core/shell materials. The results indicated that the low TBOT/YF3 molar ratio was favorable to preparing the uniform TiO 2 coatings. The upconversion luminescence properties of YF 3:Yb 3+,Tm 3+ and TiO 2-coated YF 3:Yb 3+,Tm 3+ microcrystals were studied under 980-nm excitation. The 1I 6→ 3H 6, 1I 6→ F4, 1D 2→ 3H 6, 1D 2→ 3F 4, 1G 4→ 3H 6, and 1G 4→ 3F 4 emissions were observed. The upconversion mechanisms were discussed in detail.

AB - YF 3:Yb 3+,Tm 3+ microcrystals were prepared by a microemulsion method. The microcrystals were coated with TiO 2 by hydrolysis of titanium n-butoxide (TBOT). Transform electron microscopy and X-ray diffraction were used to characterize the core/shell materials. The results indicated that the low TBOT/YF3 molar ratio was favorable to preparing the uniform TiO 2 coatings. The upconversion luminescence properties of YF 3:Yb 3+,Tm 3+ and TiO 2-coated YF 3:Yb 3+,Tm 3+ microcrystals were studied under 980-nm excitation. The 1I 6→ 3H 6, 1I 6→ F4, 1D 2→ 3H 6, 1D 2→ 3F 4, 1G 4→ 3H 6, and 1G 4→ 3F 4 emissions were observed. The upconversion mechanisms were discussed in detail.

KW - Core-Shell

KW - Rare earth

KW - TiO

KW - Upconversion luminescence

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U2 - 10.1166/jnn.2010.2153

DO - 10.1166/jnn.2010.2153

M3 - Article

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SN - 1533-4880

VL - 10

SP - 2032

EP - 2035

JO - Journal of Nanoscience and Nanotechnology

JF - Journal of Nanoscience and Nanotechnology

IS - 3

ER -

Synthesis and upconversion luminescence of YF ₃:Yb ³⁺, Tm ³⁺and TiO ₂-coated YF ₃:Yb ³⁺,Tm ³⁺ microcrystals

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Keywords

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