Modeling and Assessment of Long Afterglow Decay Curves

Chi Yang Tsai, Jeng Wen Lin, Yih Ping Huang, Yung Chieh Huang

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Multiple exponential equations have been successfully fitted to experimental long afterglow decay curve data for some phosphor materials by previous researchers. The calculated decay constants in such equations are used to assess the phosphorescence characteristics of an object. This study generates decay constants from experimental test data and from existing literature for comparison. It shows that the decay constants of an object may not be invariant and that they are dependent on phosphor material, temperature, irradiation intensity, sample thickness, and phosphor density for samples. In addition, the use of different numbers of exponential components in interpretation leads to different numerical results for decay constants. The relationship between the calculated decay constants and the afterglow characteristics of an object is studied and discussed in this paper. The appearance of the luminescence intensity is less correlated to the decay constants than to the time-invariant constants in an equation.

Original languageEnglish
Article number102524
JournalScientific World Journal
Volume2014
DOIs
Publication statusPublished - 2014

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Luminescence
Phosphors
Research Personnel
Temperature
modeling
Phosphorescence
Irradiation
luminescence
irradiation
temperature

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Environmental Science(all)
  • Medicine(all)

Cite this

Tsai, C. Y., Lin, J. W., Huang, Y. P., & Huang, Y. C. (2014). Modeling and Assessment of Long Afterglow Decay Curves. Scientific World Journal, 2014, [102524]. https://doi.org/10.1155/2014/102524

Modeling and Assessment of Long Afterglow Decay Curves. / Tsai, Chi Yang; Lin, Jeng Wen; Huang, Yih Ping; Huang, Yung Chieh.

In: Scientific World Journal, Vol. 2014, 102524, 2014.

Research output: Contribution to journalArticle

Tsai, Chi Yang ; Lin, Jeng Wen ; Huang, Yih Ping ; Huang, Yung Chieh. / Modeling and Assessment of Long Afterglow Decay Curves. In: Scientific World Journal. 2014 ; Vol. 2014.
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