Inherently Eu2+ /Eu3+ Codoped Sc2 O3 Nanoparticles as High-Performance Nanothermometers

Inherently Eu2+ /Eu3+ Codoped Sc2 O3 Nanoparticles as High-Performance Nanothermometers

© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Détails bibliographiques
Publié dans:Advanced materials (Deerfield Beach, Fla.). - 1998. - 30(2018), 14 vom: 11. Apr., Seite e1705256
Auteur principal: Pan, Yue (Auteur)
Autres auteurs: Xie, Xiaoji, Huang, Qianwen, Gao, Chao, Wang, Yangbo, Wang, Lingxiao, Yang, Bingxiao, Su, Haiquan, Huang, Ling, Huang, Wei
Format: Article en ligne
Langue:English
Publié: 2018
Accès à la collection:Advanced materials (Deerfield Beach, Fla.)
Sujets:Journal Article Eu2+ Sc2O3 in situ reduction nanothermometers
Description
Résumé:© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Luminescent nanothermometers have shown competitive superiority for contactless and noninvasive temperature probing especially at the nanoscale. Herein, we report the inherently Eu2+ /Eu3+ codoped Sc2 O3 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
Description:Date Completed 01.08.2018
Date Revised 01.10.2020
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.201705256