Investigation of thermoluminescence and kinetic parameters of CaMgB2O5: Dy3+ nanophosphor

M. Manhas, Vinay Kumar, O. M. Ntwaeaborwa, H. C. Swart

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

In this paper, thermoluminescence (TL) properties of Dy3+ (1.5 mol %) doped CaMgB2O5 nanophosphor after being exposed to ultraviolet (UV) radiations (λ=254nm) were investigated. In UV exposed samples, the thermoluminescence glow curve consists of a broad glow peak located at 380 K with a small shoulder at 507 K. A shift in glow peak temperature from 367 K to 380 K after the UV exposure for 80 min was observed, which clearly shows that glow peaks follow the second order kinetics. The TL intensity of the peaks increases with an increase in the exposure time of UV rays (10-180 min). The TL Anal program was used to analyze the glow curve. The kinetic parameters such as activation energy (E), the frequency factor (s) and the order of kinetics (b) were calculated for CaMgB2O5: Dy3+ nanophosphors.

Original languageEnglish
Title of host publicationInternational Conference on Condensed Matter and Applied Physics, ICC 2015
Subtitle of host publicationProceeding of International Conference on Condensed Matter and Applied Physics
EditorsManoj Singh Shekhawat, Sudhir Bhardwaj, Bhuvneshwer Suthar
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735413757
DOIs
Publication statusPublished - 6 May 2016
Externally publishedYes
EventInternational Conference on Condensed Matter and Applied Physics, ICC 2015 - Bikaner, India
Duration: 30 Oct 201531 Oct 2015

Publication series

NameAIP Conference Proceedings
Volume1728
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on Condensed Matter and Applied Physics, ICC 2015
Country/TerritoryIndia
CityBikaner
Period30/10/1531/10/15

ASJC Scopus subject areas

  • General Physics and Astronomy

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