Premium
Lanthanide–Organic Framework Nanothermometers Prepared by Spray‐Drying
Author(s) -
Wang Zhuopeng,
Ananias Duarte,
CarnéSánchez Arnau,
Brites Carlos D. S.,
Imaz Inhar,
Maspoch Daniel,
Rocha João,
Carlos Luís D.
Publication year - 2015
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201500518
Subject(s) - materials science , lanthanide , luminescence , nanomedicine , nanoparticle , quantum yield , metal organic framework , atmospheric temperature range , nanotechnology , phosphor , reproducibility , spray drying , yield (engineering) , analytical chemistry (journal) , optoelectronics , chemical engineering , chemistry , optics , composite material , fluorescence , organic chemistry , thermodynamics , chromatography , ion , physics , adsorption , engineering
Accurate, noninvasive, and self‐referenced temperature measurements at the submicrometer scale are of great interest, prompted by the ever‐growing demands in the fields of nanotechnology and nanomedicine. The thermal dependence of the phosphor's luminescence provides high detection sensitivity and spatial resolution with short acquisition times in, e.g., biological fluids, strong electromagnetic fields, and fast‐moving objects. Here, it is shown that nanoparticles of [(Tb 0.914 Eu 0.086 ) 2 (PDA) 3 (H 2 O)]·2H 2 O (PDA = 1,4‐phenylenediacetic acid), the first lanthanide–organic framework prepared by the spray‐drying method, are excellent nanothermometers operating in the solid state in the 10–325 K range (quantum yield of 0.25 at 370 nm, at room temperature). Intriguingly, this system is the most sensitive cryogenic nanothermometer reported so far, combining high sensitivity (up to 5.96 ± 0.04% K −1 at 25 K), reproducibility (in excess of 99%), and low‐temperature uncertainty (0.02 K at 25 K).