An influence of temperature on structural, morphological, thermal, optical and photoluminescence properties of LaPO4 nanoparticles

The aim of this work is to investigate the undoped LaPO4 various properties due to the different optimizing temperature and analysing the fluorescence properties. The LaPO4 nanoparticles has been synthesized using simple Co-precipitation method at different temperature 300 degrees C, 350 degrees C, 400 degrees C, 450 degrees C, 600 degrees C and 800 degrees C. All samples were characterized by structural, morphological and optical studies were investigated. From XRD study of all samples reveals that the annealing temperature increases results from amorphous into the sample became more crystallinity at 800 degrees C and the monoclinic phase. The presence of functional group observed by FTIR. The morphological study SEM and TEM shows spherical in shape at 800 degrees C. Atomic percentage of prepared samples were analysed by EDS and found to be value of 0 (59.8), P (17.69) and La (22.42) at 800 degrees C. Thermal behaviour of the sample analysed by TG-DTA. The band gap was determined and noticed to be reduced from 3.25 to 2.75 on increasing the annealing temperature. Furthermore, detailed photoluminescence study was performed and discussed.

Automated summary

This study investigates the properties of undoped LaPO4 nanoparticles synthesized at different optimizing temperatures, including structural, morphological, optical, and fluorescence properties. The increase in annealing temperature resulted in the transition of the sample from amorphous to more crystalline, with a decrease in band gap observed. The SEM and TEM studies revealed spherical morphology at 800 degrees C, while EDS analysis showed atomic percentages of La (22.42), P (17.69), and 0 (59.8) at that temperature.