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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 13 — Jul. 1, 2009
  • pp: 1915–1917

Rate-equation model for the loading-rate-dependent mechanoluminescence of SrAl 2 O 4 : Eu 2 + , Dy 3 +

Ji Sik Kim, Kevin Kibble, Yong Nam Kwon, and Kee-Sun Sohn  »View Author Affiliations


Optics Letters, Vol. 34, Issue 13, pp. 1915-1917 (2009)
http://dx.doi.org/10.1364/OL.34.001915


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Abstract

The mechanoluminescence (ML) of SrAl 2 O 4 : Eu 2 + , Dy 3 + (SAO) phosphors was monitored as a function of its instantaneous loading rate, on which it was found to be strongly dependent. The effect of the loading rate on the ML of SAO was investigated in a systematic manner using rate equations involving the loading rate term. The rate equations and the experimental data matched well. We confirmed that the ML of SAO was created by the change in load rather than by the static load, and that the loading rate determined the shape of the ML versus the time curve in the transient regime.

© 2009 Optical Society of America

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(160.4670) Materials : Optical materials

ToC Category:
Materials

History
Original Manuscript: March 5, 2009
Revised Manuscript: May 2, 2009
Manuscript Accepted: May 13, 2009
Published: June 17, 2009

Citation
Ji Sik Kim, Kevin Kibble, Yong Nam Kwon, and Kee-Sun Sohn, "Rate-equation model for the loading-rate-dependent mechanoluminescence of SrAl2O4:Eu2+,Dy3+," Opt. Lett. 34, 1915-1917 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-13-1915


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