Ultraviolet upconversion luminescence enhancement in Yb3+/Er3+-codoped Y2O3 nanocrystals induced by tridoping with Li+ ions

Huijuan Liang; Guanying Chen; Huichun Liu; Zhiguo Zhang

doi:10.1016/j.jlumin.2008.09.020

Ultraviolet upconversion luminescence enhancement in Yb³⁺/Er³⁺-codoped Y₂O₃ nanocrystals induced by tridoping with Li⁺ ions

Huijuan Liang
, Guanying Chen
, Huichun Liu
, Zhiguo Zhang^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Harbin Institute of Technology

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

44 Scopus citations

Abstract

Ultraviolet (UV) upconversion (UC) luminescence in Yb³⁺/Er³⁺-codoped yttrium oxide (Y₂O₃) nanocrystals can be enhanced by orders of magnitude via tridoping further with Li⁺ ions under diode laser excitation of 970 nm. Sensitized three-photon UC radiations at 390 and 409 nm, corresponding to the ⁴G_11/2→⁴I_15/2 and ⁴H_9/2→⁴I_15/2 of Er³⁺ ions, respectively, present an enhancement time of about 33 times, which is larger than the 24 times enhancement for the UC green radiation. The UV UC radiation at 320 nm that corresponds to the ²P_3/2→⁴I_15/2 of Er³⁺ ions has also been greatly enhanced. Theoretical calculations interpret that all the observed enhancement times of UV UC radiations arise from the prolonged lifetimes of their intermediate states.

Original language	English
Pages (from-to)	197-202
Number of pages	6
Journal	Journal of Luminescence
Volume	129
Issue number	3
DOIs	https://doi.org/10.1016/j.jlumin.2008.09.020
State	Published - Mar 2009

Keywords

Enhancement
Multi-photon
Upconversion

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10.1016/j.jlumin.2008.09.020

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title = "Ultraviolet upconversion luminescence enhancement in Yb3+/Er3+-codoped Y2O3 nanocrystals induced by tridoping with Li+ ions",

abstract = "Ultraviolet (UV) upconversion (UC) luminescence in Yb3+/Er3+-codoped yttrium oxide (Y2O3) nanocrystals can be enhanced by orders of magnitude via tridoping further with Li+ ions under diode laser excitation of 970 nm. Sensitized three-photon UC radiations at 390 and 409 nm, corresponding to the 4G11/2→4I15/2 and 4H9/2→4I15/2 of Er3+ ions, respectively, present an enhancement time of about 33 times, which is larger than the 24 times enhancement for the UC green radiation. The UV UC radiation at 320 nm that corresponds to the 2P3/2→4I15/2 of Er3+ ions has also been greatly enhanced. Theoretical calculations interpret that all the observed enhancement times of UV UC radiations arise from the prolonged lifetimes of their intermediate states.",

keywords = "Enhancement, Multi-photon, Upconversion",

author = "Huijuan Liang and Guanying Chen and Huichun Liu and Zhiguo Zhang",

year = "2009",

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doi = "10.1016/j.jlumin.2008.09.020",

language = "英语",

volume = "129",

pages = "197--202",

journal = "Journal of Luminescence",

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TY - JOUR

T1 - Ultraviolet upconversion luminescence enhancement in Yb3+/Er3+-codoped Y2O3 nanocrystals induced by tridoping with Li+ ions

AU - Liang, Huijuan

AU - Chen, Guanying

AU - Liu, Huichun

AU - Zhang, Zhiguo

PY - 2009/3

Y1 - 2009/3

N2 - Ultraviolet (UV) upconversion (UC) luminescence in Yb3+/Er3+-codoped yttrium oxide (Y2O3) nanocrystals can be enhanced by orders of magnitude via tridoping further with Li+ ions under diode laser excitation of 970 nm. Sensitized three-photon UC radiations at 390 and 409 nm, corresponding to the 4G11/2→4I15/2 and 4H9/2→4I15/2 of Er3+ ions, respectively, present an enhancement time of about 33 times, which is larger than the 24 times enhancement for the UC green radiation. The UV UC radiation at 320 nm that corresponds to the 2P3/2→4I15/2 of Er3+ ions has also been greatly enhanced. Theoretical calculations interpret that all the observed enhancement times of UV UC radiations arise from the prolonged lifetimes of their intermediate states.

AB - Ultraviolet (UV) upconversion (UC) luminescence in Yb3+/Er3+-codoped yttrium oxide (Y2O3) nanocrystals can be enhanced by orders of magnitude via tridoping further with Li+ ions under diode laser excitation of 970 nm. Sensitized three-photon UC radiations at 390 and 409 nm, corresponding to the 4G11/2→4I15/2 and 4H9/2→4I15/2 of Er3+ ions, respectively, present an enhancement time of about 33 times, which is larger than the 24 times enhancement for the UC green radiation. The UV UC radiation at 320 nm that corresponds to the 2P3/2→4I15/2 of Er3+ ions has also been greatly enhanced. Theoretical calculations interpret that all the observed enhancement times of UV UC radiations arise from the prolonged lifetimes of their intermediate states.

KW - Enhancement

KW - Multi-photon

KW - Upconversion

UR - https://www.scopus.com/pages/publications/58049110189

U2 - 10.1016/j.jlumin.2008.09.020

DO - 10.1016/j.jlumin.2008.09.020

M3 - 文章

AN - SCOPUS:58049110189

SN - 0022-2313

VL - 129

SP - 197

EP - 202

JO - Journal of Luminescence

JF - Journal of Luminescence

IS - 3

ER -

Ultraviolet upconversion luminescence enhancement in Yb³⁺/Er³⁺-codoped Y₂O₃ nanocrystals induced by tridoping with Li⁺ ions

Abstract

Keywords

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