Optical thermometry based on up-conversion luminescence behavior of Er3+-doped KYb2F7 nano-crystals in bulk glass ceramics

被引：72

作者：

Cao, JiangKun ^{[1
]}

Hu, FangFang ^{[2
]}

Chen, LiPing ^{[1
,3
]}

Guo, Hai ^{[1
]}

Duan, Changkui ^{[2
]}

Yin, Min ^{[2
]}

机构：

[1] Zhejiang Normal Univ, Dept Phys, Jinhua 321004, Zhejiang, Peoples R China

[2] Univ Sci & Technol China, Dept Phys, Hefei 230026, Peoples R China

[3] Key Lab Adv Mat Yunnan Prov, 304 Xuefu Rd, Kunming 650093, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 693卷

关键词：

Bulk glass ceramics; KYb2F7; Up-conversion; Optical thermometry; TEMPERATURE SENSING BEHAVIOR; SEPARATION-CONTROLLED CRYSTALLIZATION; NANOCRYSTALS; ER3+; NANOPARTICLES; EMISSION; PHOSPHOR; SPECTROSCOPY; ER3+-YB3+; HEATER;

D O I：

10.1016/j.jallcom.2016.09.163

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Er3+-doped transparent bulk glass ceramics (GC) containing KYb2F7 nano-crystals were fabricated by melt-quenching technique and subsequent thermal treatment. Their structural and up-conversion luminescent properties were systemically investigated. Optical spectroscopy analysis demonstrates the incorporation of Er3+ into the KYb2F7 crystalline lattice, resulting in highly enhanced up-conversion luminescence. The temperature sensing performance of KYb2F7: Er3+ were investigated by the fluorescence intensity ratio of the thermally coupled emitting levels (H-2(11/2) and S-4(3/2)). Due to low phonon energy and high thermal stability, Er3+ ions in KYb2F7 GC present large energy gap (844 cm(-1)) and high theoretical maximum value of relative sensitivity (45.40x10(-4) K-1 at 590 K), suggesting that KYb2F7: Er3+ GC can be excellent candidates for optical temperature sensors. (C) 2016 Elsevier B. V. All rights reserved.

引用

页码：326 / 331

页数：6

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