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Thermoluminescence and near-infrared persistent luminescence in LaAlO3:Mn4+,R (R= Na+, Ca2+, Sr2+, Ba2+) ceramics

Jiaren Du (UGent) , Olivier De Clercq (UGent) and Dirk Poelman (UGent)
(2018) CERAMICS INTERNATIONAL. 44(17). p.21613-21620
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Abstract
The near-infrared (NIR) persistent luminescence and thermoluminescence of Mn4+ activated LaAlO3 (LAO) and LAO:Mn4+,R (R= Na+, Ca2+, Sr2+, Ba2+) ceramics were investigated. After irradiation with 335 nm excitation light, deep red and NIR persistent luminescence was obtained in the wavelength region from 650 nm to 750 nm due to the Mn4+ dopants, well within the biological tissue transparency window for in vivo imaging. The afterglow can be attributed to the presence of Mn4+ induced traps in the LAO host. By carrying out a series of thermoluminescence measurements, the formation of a broad range of traps was identified, with two main peaks centered at 0 degrees C and 114 degrees C. Na, Ca2+, Sr2+ or Ba2+ ions were added as co-dopants to optimize the location and energy of the trap levels, improving the NIR persistent luminescence.
Keywords
Phosphor, Mn4+, Persistent luminescence, Perovskites, Thermoluminescence, Luminescence, Optical materials/properties, HIGH-BRIGHTNESS, ENERGY-LEVELS, DOPED LAALO3, PHOSPHORS, PEROVSKITE, DESIGN, YPO4, IONS, 1ST, RED

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Chicago
Du, Jiaren, Olivier De Clercq, and Dirk Poelman. 2018. “Thermoluminescence and Near-infrared Persistent Luminescence in LaAlO3:Mn4+,R (R= Na+, Ca2+, Sr2+, Ba2+) Ceramics.” Ceramics International 44 (17): 21613–21620.
APA
Du, Jiaren, De Clercq, O., & Poelman, D. (2018). Thermoluminescence and near-infrared persistent luminescence in LaAlO3:Mn4+,R (R= Na+, Ca2+, Sr2+, Ba2+) ceramics. CERAMICS INTERNATIONAL, 44(17), 21613–21620.
Vancouver
1.
Du J, De Clercq O, Poelman D. Thermoluminescence and near-infrared persistent luminescence in LaAlO3:Mn4+,R (R= Na+, Ca2+, Sr2+, Ba2+) ceramics. CERAMICS INTERNATIONAL. 2018;44(17):21613–20.
MLA
Du, Jiaren, Olivier De Clercq, and Dirk Poelman. “Thermoluminescence and Near-infrared Persistent Luminescence in LaAlO3:Mn4+,R (R= Na+, Ca2+, Sr2+, Ba2+) Ceramics.” CERAMICS INTERNATIONAL 44.17 (2018): 21613–21620. Print.
@article{8577253,
  abstract     = {The near-infrared (NIR) persistent luminescence and thermoluminescence of Mn4+ activated LaAlO3 (LAO) and LAO:Mn4+,R (R= Na+, Ca2+, Sr2+, Ba2+) ceramics were investigated. After irradiation with 335 nm excitation light, deep red and NIR persistent luminescence was obtained in the wavelength region from 650 nm to 750 nm due to the Mn4+ dopants, well within the biological tissue transparency window for in vivo imaging. The afterglow can be attributed to the presence of Mn4+ induced traps in the LAO host. By carrying out a series of thermoluminescence measurements, the formation of a broad range of traps was identified, with two main peaks centered at 0 degrees C and 114 degrees C. Na, Ca2+, Sr2+ or Ba2+ ions were added as co-dopants to optimize the location and energy of the trap levels, improving the NIR persistent luminescence.},
  author       = {Du, Jiaren and De Clercq, Olivier and Poelman, Dirk},
  issn         = {0272-8842},
  journal      = {CERAMICS INTERNATIONAL},
  language     = {eng},
  number       = {17},
  pages        = {21613--21620},
  title        = {Thermoluminescence and near-infrared persistent luminescence in LaAlO3:Mn4+,R (R= Na+, Ca2+, Sr2+, Ba2+) ceramics},
  url          = {http://dx.doi.org/10.1016/j.ceramint.2018.08.243},
  volume       = {44},
  year         = {2018},
}

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