Influence of Yb3+ concentration on upconversion luminescence of Ho3+

Ying Yu; Yangdong Zheng; Feng Qin; Lixin Liu; Changbin Zheng; Guanying Chen; Zhiguo Zhang; Wenwu Cao

doi:10.1016/j.optcom.2010.10.042

Influence of Yb³⁺ concentration on upconversion luminescence of Ho³⁺

Ying Yu, Yangdong Zheng, Feng Qin, Lixin Liu, Changbin Zheng, Guanying Chen, Zhiguo Zhang, Wenwu Cao

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

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Abstract

Upconversion (UC) emissions at 360 ((⁵F, ³F, ⁵G)₂ → ⁵I₈), 392 ( ³K₇/⁵G₄ → ⁵I ₈), 428 (⁵G₅ → ⁵I₈), 554 (⁵S₂/⁵F₄ → ⁵I₈), 667 (⁵F₅ → ⁵I₈) and 754 (⁵S₂/⁵F ₄ → ⁵I₇) nm were obtained in 0.1 mol% Ho³⁺/x mol% Yb³⁺:Y₂O₃ (x = 2, 5, 8, 11, 15) bulk ceramics under infrared (IR) excitation at 976 nm. The intensity of the UC luminescence centered at 554 and 754 nm increased with Yb³⁺ concentration from 2 to 5 mol% and decreased from 5 to 15 mol%, while the UC luminescence centered at 392, 428 and 667 nm increased with Yb³⁺ concentration from 2 to 11 mol%, then started to reduce with Yb³⁺ concentration until 15 mol%. This comes from the competition between the energy back transfer (EBT) process [⁵S₂/⁵F ₄(Ho) + ²F_7/2(Yb) → ⁵I ₆(Ho) + ²F_5/2(Yb) as well as ⁵F ₅(Ho) + ²F_7/2(Yb) → ⁵I ₇(Ho) + ²F_5/2(Yb)] and spontaneous radiation process. The intensity of the UC luminescence centered at 360 nm always increases with Yb³⁺ concentration from 2 to 15 mol%. We believe that it may come from the cooperation of energy transfer process from Yb³⁺ ions in the ²F_5/2 state and the cross energy transfer process ⁵S₂/⁵F₄ + ⁵I ₆ → (⁵F, ³F, ⁵G)₂ + ⁵I₈.

Original language	English (US)
Pages (from-to)	1053-1056
Number of pages	4
Journal	Optics Communications
Volume	284
Issue number	4
DOIs	https://doi.org/10.1016/j.optcom.2010.10.042
State	Published - Feb 15 2011

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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10.1016/j.optcom.2010.10.042

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@article{80711cbfff6344b7b30a8e3c760202b9,

title = "Influence of Yb3+ concentration on upconversion luminescence of Ho3+",

abstract = "Upconversion (UC) emissions at 360 ((5F, 3F, 5G)2 → 5I8), 392 ( 3K7/5G4 → 5I 8), 428 (5G5 → 5I8), 554 (5S2/5F4 → 5I8), 667 (5F5 → 5I8) and 754 (5S2/5F 4 → 5I7) nm were obtained in 0.1 mol% Ho3+/x mol% Yb3+:Y2O3 (x = 2, 5, 8, 11, 15) bulk ceramics under infrared (IR) excitation at 976 nm. The intensity of the UC luminescence centered at 554 and 754 nm increased with Yb3+ concentration from 2 to 5 mol% and decreased from 5 to 15 mol%, while the UC luminescence centered at 392, 428 and 667 nm increased with Yb3+ concentration from 2 to 11 mol%, then started to reduce with Yb3+ concentration until 15 mol%. This comes from the competition between the energy back transfer (EBT) process [5S2/5F 4(Ho) + 2F7/2(Yb) → 5I 6(Ho) + 2F5/2(Yb) as well as 5F 5(Ho) + 2F7/2(Yb) → 5I 7(Ho) + 2F5/2(Yb)] and spontaneous radiation process. The intensity of the UC luminescence centered at 360 nm always increases with Yb3+ concentration from 2 to 15 mol%. We believe that it may come from the cooperation of energy transfer process from Yb3+ ions in the 2F5/2 state and the cross energy transfer process 5S2/5F4 + 5I 6 → (5F, 3F, 5G)2 + 5I8.",

author = "Ying Yu and Yangdong Zheng and Feng Qin and Lixin Liu and Changbin Zheng and Guanying Chen and Zhiguo Zhang and Wenwu Cao",

year = "2011",

month = feb,

day = "15",

doi = "10.1016/j.optcom.2010.10.042",

language = "English (US)",

volume = "284",

pages = "1053--1056",

journal = "Optics Communications",

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TY - JOUR

T1 - Influence of Yb3+ concentration on upconversion luminescence of Ho3+

AU - Yu, Ying

AU - Zheng, Yangdong

AU - Qin, Feng

AU - Liu, Lixin

AU - Zheng, Changbin

AU - Chen, Guanying

AU - Zhang, Zhiguo

AU - Cao, Wenwu

PY - 2011/2/15

Y1 - 2011/2/15

N2 - Upconversion (UC) emissions at 360 ((5F, 3F, 5G)2 → 5I8), 392 ( 3K7/5G4 → 5I 8), 428 (5G5 → 5I8), 554 (5S2/5F4 → 5I8), 667 (5F5 → 5I8) and 754 (5S2/5F 4 → 5I7) nm were obtained in 0.1 mol% Ho3+/x mol% Yb3+:Y2O3 (x = 2, 5, 8, 11, 15) bulk ceramics under infrared (IR) excitation at 976 nm. The intensity of the UC luminescence centered at 554 and 754 nm increased with Yb3+ concentration from 2 to 5 mol% and decreased from 5 to 15 mol%, while the UC luminescence centered at 392, 428 and 667 nm increased with Yb3+ concentration from 2 to 11 mol%, then started to reduce with Yb3+ concentration until 15 mol%. This comes from the competition between the energy back transfer (EBT) process [5S2/5F 4(Ho) + 2F7/2(Yb) → 5I 6(Ho) + 2F5/2(Yb) as well as 5F 5(Ho) + 2F7/2(Yb) → 5I 7(Ho) + 2F5/2(Yb)] and spontaneous radiation process. The intensity of the UC luminescence centered at 360 nm always increases with Yb3+ concentration from 2 to 15 mol%. We believe that it may come from the cooperation of energy transfer process from Yb3+ ions in the 2F5/2 state and the cross energy transfer process 5S2/5F4 + 5I 6 → (5F, 3F, 5G)2 + 5I8.

AB - Upconversion (UC) emissions at 360 ((5F, 3F, 5G)2 → 5I8), 392 ( 3K7/5G4 → 5I 8), 428 (5G5 → 5I8), 554 (5S2/5F4 → 5I8), 667 (5F5 → 5I8) and 754 (5S2/5F 4 → 5I7) nm were obtained in 0.1 mol% Ho3+/x mol% Yb3+:Y2O3 (x = 2, 5, 8, 11, 15) bulk ceramics under infrared (IR) excitation at 976 nm. The intensity of the UC luminescence centered at 554 and 754 nm increased with Yb3+ concentration from 2 to 5 mol% and decreased from 5 to 15 mol%, while the UC luminescence centered at 392, 428 and 667 nm increased with Yb3+ concentration from 2 to 11 mol%, then started to reduce with Yb3+ concentration until 15 mol%. This comes from the competition between the energy back transfer (EBT) process [5S2/5F 4(Ho) + 2F7/2(Yb) → 5I 6(Ho) + 2F5/2(Yb) as well as 5F 5(Ho) + 2F7/2(Yb) → 5I 7(Ho) + 2F5/2(Yb)] and spontaneous radiation process. The intensity of the UC luminescence centered at 360 nm always increases with Yb3+ concentration from 2 to 15 mol%. We believe that it may come from the cooperation of energy transfer process from Yb3+ ions in the 2F5/2 state and the cross energy transfer process 5S2/5F4 + 5I 6 → (5F, 3F, 5G)2 + 5I8.

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U2 - 10.1016/j.optcom.2010.10.042

DO - 10.1016/j.optcom.2010.10.042

M3 - Article

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SN - 0030-4018

VL - 284

SP - 1053

EP - 1056

JO - Optics Communications

JF - Optics Communications

IS - 4

ER -

Influence of Yb³⁺ concentration on upconversion luminescence of Ho³⁺

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