November 23, 2024
Mohsen Mehrabi

Mohsen Mehrabi

Academic Rank: Assistant professor
Address: Bushehr - Persian Gulf University - Faculty of Nano and bio science and technology - Physics Department -Postal Code 7516913817
Degree: Ph.D in Physics
Phone: 07731223389
Faculty: Faculty of Nano and Biotechnology

Research

Title Luminescence Properties Of Pure CaSO4 Nanoparticles Produced By Co-Precipitation Method
Type Article
Keywords
Thermoluminescence Photoluminescence Nanoparticles Co-precipitation
Journal Journal of Nanostructures
DOI 10.7508/jns.2014.04.004
Researchers Mohsen Mehrabi (First researcher) , Mostafa Zahedifar (Second researcher) , Ehsan Sadeghi (Third researcher)

Abstract

Thermoluminecsence (TL) characteristics of pure CaSO4 nanoparticles produced by co-precipitation method are presented. The formation of the nanoparticles was confirmed by X-ray diffraction (XRD) and scanning electron microscope (SEM). TL glow curve of this phosphor, exposed to gamma radiation exhibits five overlapping glow peaks in the complex glow curve at 463, 470, 483, 498 and521(K) respectively, using a computerized glow curve deconvolution procedure. A photoluminescence (PL) emission band at 393 nm was observed for the synthesized nanoparticles. Different synthesis conditions were examined in order to achieve highest TL sensitivity. The produced nanoparticles exhibit superior thermoluminescent sensitivity compared to that of its bulk equivalent