• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2023, Volume: 16, Issue: Special Issue 1, Pages: 165-173

Original Article

Optical Properties of AgNPs and BiPO4 :Pr(III) Phosphor and Comparative Studies of Albumins (Local Eggs, Mizoram)

Received Date:23 January 2023, Accepted Date:09 June 2023, Published Date:13 September 2023


Objectives: This work investigated the photoluminescence behaviour of Pr3+- doped BiPO4 phosphors synthesised by the co-precipitation method, and the combination of albumin with AgNPs shows the development of the FRET mechanism. Methods: Pr3+-doped BiPO4 phosphors were synthesised by the co-precipitation method, and AgNPs were prepared by the reduction method. The prepared phosphors were characterised by XRD, SEM, FT-IR, UV-vis, and PL spectroscopy techniques. The activity of proteins in the mixing of phosphors and AgNPs was studied through the PL study, leading to the formation of the FRET mechanism. Findings: A monoclinic phase was observed through XRD and FT-IR studies; however, the SEM image showed the agglomeration of the nanoparticles of phosphors. The bands were observed at the 670-750 nm for the emission spectra produced at 3P1!3F4 and 3P0!3F4 transitions, and they were obtained as excitation spectra at 3P0;1;2 in 468.6 nm via the photoluminescence study. The decay time of the prepared phosphors was also investigated, with the calculated average lifetime for Pr3+ (7 at.%) being 0.14572 and the goodness of fit (R2) for the concentration being 0.98939. The CIE chromaticity diagram revealed a nearly white colour emission upon excitation at 468.6 nm. The prepared phosphors may be useful for solidstate lighting. Meanwhile, taking two different types of albumin to show which one got further intensity when mixed with phosphor material and a silver nanoparticle for enhancing the intensity of the mixed sample also shows energy transfer between the excitation and emission spectra of the prepared sample by using a basic FRET mechanism. Novelty: According to the author’s knowledge, no comprehensive work was dedicated to the objective of this research. The comparison of albumins of duck and local eggs (Mizoram, India) with phosphors and AgNPs was not shown anywhere, where it will be more applicable in the field of phosphor. Therefore, it is sensible to modify the materials to improve the FRET mechanism for fulfilling the potential of this work.

Keywords: Phosphors; PL; AgNPs; Emission; Excitation spectra


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@2023 Singh & Lalrindiki. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Published By Indian Society for Education and Environment (iSee)


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