Upconversion Emission Studies in Er3+/Yb3+ Doped/Co-Doped NaGdF4 Phosphor Particles for Intense Cathodoluminescence and Wide Temperature-Sensing Applications

• Type: Article in International Scientific Journal
• Date: 2022

Authors

Kumar, A (Author) Other; Helena Couto (Author) FCUP; Joaquim C G E Esteves da Silva (Author) FCUP

Journal

Title: Materials

Vol. 15

Final page: 6563

ISSN: 1996-1944

Publisher: MDPI

Indexing

ISI Web of Knowledge - 2 Citations

Scopus

Other information

Authenticus ID: P-00X-74R

DOI: 10.3390/ma15196563

Abstract (EN): Er3+/Yb3+ doped/co-doped NaGdF4 upconversion phosphor nanoparticles were synthesized via the thermal decomposition route of synthesis. The oc-phase crystal structure and nanostructure of these particles were confirmed using XRD and FE-SEM analysis. In the power-dependent upconversion analysis, different emission bands at 520 nm, 540 nm, and 655 nm were obtained. The sample was also examined for cathodoluminescence (CL) analysis at different filament currents of an electron beam. Through CL analysis, different emission bands of 526 nm, 550 nm, 664 nm, and 848 nm were obtained. The suitability of the present sample for temperature-sensing applications at a wide range of temperatures, from room temperature to 1173 K, was successfully demonstrated.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12