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Title: Impact of Sc 3+ -Modified Local Site Symmetries on Er 3+ Ion Upconversion Luminescence in Y 2 O 3 Nanoparticles
NSF-PAR ID:
10409180
Author(s) / Creator(s):
 ;  ;  ;  
Publisher / Repository:
American Chemical Society
Date Published:
Journal Name:
The Journal of Physical Chemistry C
Volume:
126
Issue:
28
ISSN:
1932-7447
Page Range / eLocation ID:
p. 11715-11722
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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  1. Abstract

    Nanothermometry is the study of temperature at the submicron scale with a broad range of potential applications, such as cellular studies or electronics. Molecular luminescent‐based nanothermometers offer a non‐contact means to record these temperatures with high spatial resolution and thermal sensitivity. A luminescent‐based molecular thermometer comprised of visible‐emitting Ga3+/Tb3+and Ga3+/Sm3+metallacrowns (MCs) achieved remarkable relative thermal sensitivity associated with very low temperature uncertainty ofSr=1.9 % K−1andδT<0.045 K, respectively, at 328 K, as an aqueous suspension of polystyrene nanobeads loaded with the corresponding MCs. To date, they are the ratiometric molecular nanothermometers offering the highest level of sensitivity in the physiologically relevant temperature range.

     
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  3. null (Ed.)