Nd:YAG Near‐Infrared Luminescent Nanothermometers. Issue 5 (19th January 2015)

• Record Type: Journal Article
• Authors: Benayas, Antonio; del Rosal, Blanca; Pérez‐Delgado, Alberto; Santacruz‐Gómez, Karla; Jaque, Daniel; Hirata, Gustavo Alonso; Vetrone, Fiorenzo
• Is Part Of: Advanced optical materials. Volume 3:Issue 5(2015:May)
• Page Start: 687
• Page End: 694
• Publication Date: 2015-01-19
• Subjects: Optical materials -- Periodicals; Photonics -- Periodicals; 620.11295
• DOI: 10.1002/adom.201400484
• Languages: English
• ISSNs: 2195-1071

Abstract

<abstract abstract-type="main" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p>In this work, the thermal sensing capability of Nd³⁺‐doped Y₃Al₅O₁₂ nanoparticles fabricated by combustion synthesis is reported. Under excitation at 808 nm, the relative intensity of the two spectrally isolated luminescence peaks located at around 940 nm (corresponding to a ⁴F_3/2 →⁴I_9/2 transition of the Nd³⁺ ions) is found to be markedly temperature‐dependent allowing for ratiometric luminescence nanothermometry. The potential use of neodymium‐doped yttrium aluminum garnet nanoparticles in nanothermometry has been successfully tested in a variety of systems including integrated microelectronics, optofluidic devices, and subtissue ex vivo experiments.</p> </abstract>