Inherently Eu2+/Eu3+ Codoped Sc2O3 Nanoparticles as High-Performance Nanothermometers

被引：241

作者：

Pan, Yue ^{[1
,2
]}

Xie, Xiaoji ^{[1
]}

Huang, Qianwen ^{[1
]}

Gao, Chao ^{[1
]}

Wang, Yangbo ^{[1
]}

Wang, Lingxiao ^{[1
]}

Yang, Bingxiao ^{[1
]}

Su, Haiquan ^{[2
]}

Huang, Ling ^{[1
]}

Huang, Wei ^{[1
]}

机构：

[1] Nanjing Tech Univ, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Key Lab Flexible Elect KLOFE, IAM, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China

[2] Inner Mongolia Univ, Sch Chem & Chem Engn, 235 West Daxue Rd, Hohhot 010021, Peoples R China

来源：

ADVANCED MATERIALS | 2018年 / 30卷 / 14期

关键词：

Eu2+; in situ reduction; nanothermometers; Sc2O3; ORGANIC FRAMEWORK THERMOMETER; INORGANIC-COMPOUNDS; DUAL EMISSION; TEMPERATURE; PHOSPHOR; PHOTOLUMINESCENCE; NANOCRYSTALS; REDUCTION; EU2+; TRANSITION;

D O I：

10.1002/adma.201705256

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Luminescent nanothermometers have shown competitive superiority for contactless and noninvasive temperature probing especially at the nanoscale. Herein, we report the inherently Eu2+/Eu3+ codoped Sc2O3 nanoparticles synthesized via a one-step and controllable thermolysis reaction where Eu3+ is in-situ reduced to Eu2+ by oleylamine. The stable luminescence emission of Eu3+ as internal standard and the sensitive response of Eu2+ emission to temperature as probe comprise a perfect ratiometric nanothermometer with wide-range temperature probing (77-267 K), high repeatability (>99.94%), and high relative sensitivity (3.06% K-1 at 267 K). The in situ reduction of Eu3+ to Eu2+ ensures both uniform distribution in the crystal lattice and simultaneous response upon light excitation of Eu2+/Eu3+. To widen this concept, Tb3+ is codoped as additional internal reference for tunable temperature probing range.

引用

页数：6

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