Luminescence nanothermometry using a trivalent lanthanide co-doped perovskite. Issue 5 (18th January 2023)

• Record Type: Journal Article
• Authors: Singh, Prashansha; Jain, Neha; Shukla, Shraddha; Tiwari, Anish Kumar; Kumar, Kaushal; Singh, Jai; Pandey, Avinash C.
• Is Part Of: RSC advances. Volume 13:Issue 5(2023)
• Page Start: 2939
• Page End: 2948
• Publication Date: 2023-01-18
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d2ra05935e
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : This study investigates in detail the laser-mediated upconversion emission and temperature-sensing capability of (Ca0.99− a Yb0.01 Er a )TiO3 . Abstract : This study investigates in detail the laser-mediated upconversion emission and temperature-sensing capability of (Ca0.99− a Yb0.01 Er a )TiO3 . Samples were prepared at different concentrations to observe the effect of erbium on upconversion while increasing its concentration and keeping all the other parameters constant. Doping is a widespread technological process which involves incorporating an element called a dopant in a lower ratio to the host lattice to derive hybrid materials with desired properties. The (Ca0.99− a Yb0.01 Er a )TiO3 perovskite nanoparticles were synthesized via a sol–gel technique. The frequency upconversion was performed using a 980 nm laser diode excitation source. X-ray diffractometry (XRD) confirmed that the synthesized samples are crystalline in nature and have an orthorhombic structure. The temperature-sensing ability was examined using the fluorescence intensity ratio (FIR) algorithm of two emission bands ( 2 H11/2 → 4 I15/2 and 4 S3/2 → 4 I15/2 ) of the Er 3+ ion. Temperature-dependent upconversion luminescence is observed over a broad temperature range of 298–623 K. The maximum sensor sensitivity obtained is 6.71 × 10 −3 K −1 at 110°.