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Spectral design considerations for multi-colour persistent phosphors

Dirk Poelman (UGent) , Kim Rijpstra (UGent) , Nursen Avci (UGent) and Philippe Smet (UGent)
Author
Organization
Abstract
The past years, several persistent phosphors were studied, such as CaAl2O4:Eu,Nd (blue) and SrAl2O4:Eu,Dy (green). Yellow-to-red emitting persistent phosphors have also been identified. In signage, the combination of persistent phosphors with different colours could yield new applications. However, the eye sensitivity curve shifts from photopic vision to scotopic vision upon decreasing light intensity, with a corresponding decrease in red-sensitivity. Performance of red-emitting persistent phosphors thus cannot be described with usual photometry. An alternative description is presented, based on recent vision research in the mesopic region. It turns out that this effect seriously compromises the development of red-emitting persistent phosphors.
Keywords
persistent luminescence, eye sensitivity, rare earth

Citation

Please use this url to cite or link to this publication:

MLA
Poelman, Dirk, Kim Rijpstra, Nursen Avci, et al. “Spectral Design Considerations for Multi-colour Persistent Phosphors.” Inorganic and Organic Electroluminescence, 14th International Workshop, Proceedings. 2008. 205–207. Print.
APA
Poelman, D., Rijpstra, K., Avci, N., & Smet, P. (2008). Spectral design considerations for multi-colour persistent phosphors. Inorganic and Organic Electroluminescence, 14th International workshop, Proceedings (pp. 205–207). Presented at the 14th International workshop on Inorganic and Organic Electroluminescence ; 2008 International conference on the Science and Technology of Emissive Displays and Lighting.
Chicago author-date
Poelman, Dirk, Kim Rijpstra, Nursen Avci, and Philippe Smet. 2008. “Spectral Design Considerations for Multi-colour Persistent Phosphors.” In Inorganic and Organic Electroluminescence, 14th International Workshop, Proceedings, 205–207.
Chicago author-date (all authors)
Poelman, Dirk, Kim Rijpstra, Nursen Avci, and Philippe Smet. 2008. “Spectral Design Considerations for Multi-colour Persistent Phosphors.” In Inorganic and Organic Electroluminescence, 14th International Workshop, Proceedings, 205–207.
Vancouver
1.
Poelman D, Rijpstra K, Avci N, Smet P. Spectral design considerations for multi-colour persistent phosphors. Inorganic and Organic Electroluminescence, 14th International workshop, Proceedings. 2008. p. 205–7.
IEEE
[1]
D. Poelman, K. Rijpstra, N. Avci, and P. Smet, “Spectral design considerations for multi-colour persistent phosphors,” in Inorganic and Organic Electroluminescence, 14th International workshop, Proceedings, Rome, Italy, 2008, pp. 205–207.
@inproceedings{524706,
  abstract     = {The past years, several persistent phosphors were studied, such as CaAl2O4:Eu,Nd (blue) and SrAl2O4:Eu,Dy (green). Yellow-to-red emitting persistent phosphors have also been identified. In signage, the combination of persistent phosphors with different colours could yield new applications. However, the eye sensitivity curve shifts from photopic vision to scotopic vision upon decreasing light intensity, with a corresponding decrease in red-sensitivity. Performance of red-emitting persistent phosphors thus cannot be described with usual photometry. An alternative description is presented, based on recent vision research in the mesopic region. It turns out that this effect seriously compromises the development of red-emitting persistent phosphors.},
  author       = {Poelman, Dirk and Rijpstra, Kim and Avci, Nursen and Smet, Philippe},
  booktitle    = {Inorganic and Organic Electroluminescence, 14th International workshop, Proceedings},
  keywords     = {persistent luminescence,eye sensitivity,rare earth},
  language     = {eng},
  location     = {Rome, Italy},
  pages        = {205--207},
  title        = {Spectral design considerations for multi-colour persistent phosphors},
  year         = {2008},
}