Microwave assisted synthesis and characterizations of near infrared emitting Yb/Er doped fluorapatite nanoparticles

Kumar, GA and Chidangil, Santhosh (2016) Microwave assisted synthesis and characterizations of near infrared emitting Yb/Er doped fluorapatite nanoparticles. Journal of Alloys and Compounds, 689. pp. 525-532. ISSN 0925-8388

[img] PDF
00003698.pdf - Published Version
Restricted to Registered users only

Download (2MB) | Request a copy

Abstract

Trivalent Yb and Er doped fluoroapatite nanoparticles were prepared by a microwave assisted wet precipitation method using calcium nitrate tetrahydrate, diammonium hydrogen phosphate, ammonium fluoride and Yb, Er nitrate tetrahydrate as precursors. Well crystallized nanoparticles of rod like morphology with length and width of about 26 ± 3 and 9 ± 2 nmwas obtained. Under 980 nm excitation the nanoparticles exhibit strong near infrared emission at 1532 nm with a maximum measured internal quantum yield of 74% in 3 mol% Er and 9 mol% Yb doped sample which is 26% less than the 100% radiative quantum yield predicted by Judd-Ofelt procedure. The measured quantum yield shows a linear dependence of quantum yield on Yb concentration.

Item Type: Article
Uncontrolled Keywords: Biomaterials ; Nanoparticles ; Optical properties ; Quantum yield ; Rare earth.
Subjects: Departments at MU > Atomic Molecular Physics
Depositing User: KMC Library
Date Deposited: 02 Jan 2018 06:18
Last Modified: 02 Jan 2018 06:18
URI: http://eprints.manipal.edu/id/eprint/150403

Actions (login required)

View Item View Item