Details

Autor(en) / Beteiligte

• Kolesnikov, Ilya E
• Afanaseva, Elena V
• Kurochkin, Mikhail A
• Vaishlia, Elena I
• Kalinichev, Alexey A
• Kolesnikov, Evgenii Yu
• Lähderanta, Erkki

Titel

Upconverting NIR-to-NIR LuVO 4 :Nd 3+ /Yb 3+ Nanophosphors for High-Sensitivity Optical Thermometry

Ist Teil von

• ACS applied materials & interfaces, 2022-01, Vol.14 (1), p.1757-1764

Ort / Verlag

United States

Erscheinungsjahr

2022

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Accurate contactless thermometry is required in many rapidly developing modern applications such as biomedicine, micro- and nanoelectronics, and integrated optics. Ratiometric luminescence thermal sensing attracts a lot of attention due to its robustness toward systematic errors. Herein, a phonon-assisted upconversion in LuVO :Nd /Yb nanophosphors was successfully applied for temperature measurements within the 323-873 K range via the luminescence intensity ratio technique. Dual-activating samples were obtained by codoping and mixing single-doped nanopowders. The effect of the type of dispersion system and the Yb doping concentration was studied in terms of thermometric performances. The relative thermal sensitivity reached a value of 2.6% K , while the best temperature resolution was 0.2 K. The presented findings show the way to enhance the thermometric characteristics of contactless optical sensors.