Optically stimulated luminescence of persistent luminescence materials

Pellé, F.; Aitasalo, T.; Lastusaari, Mika; Niittykoski, Janne; Hölsä, Jorma

doi:10.1016/j.jlumin.2005.12.064

Cited by 15 publications

(5 citation statements)

References 7 publications

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“…These results were confirmed by Pellé et al. [ 186 ] and in both works the fast component was tentatively ascribed to an OSL process induced by the UV light. This interpretation agrees well with the finding by Botterman et al.…”

Section: Phenomena Related To Trapping and Energy Storagesupporting

confidence: 84%

“…However an additional fast component with a decay time of ≈ 100 ns is found if the phosphor is exposed to UV radiation during the experiment. These results were confirmed by Pellé et al [186] and in both works the fast component was tentatively ascribed to an OSL process induced by the UV light. This interpretation agrees well with the finding by Botterman et al [59] that the contribu-tion of this short decay to the total intensity exhibits similar temperature dependence as the trap filling.…”

Section: Osl In Strontium Aluminate Phosphorssupporting

confidence: 81%

See 1 more Smart Citation

Persistent Luminescence in Strontium Aluminate: A Roadmap to a Brighter Future

Heggen

Joos

Feng

et al. 2022

Adv Funct Materials

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Glow-in-the-dark materials have been around for a long time. While formerly materials had to be mixed with radioactive elements to achieve a sufficiently long and bright afterglow, these have now been replaced by much safer alternatives. Notably strontium aluminate, SrAl 2 O 4 , doped with europium and dysprosium, has been discovered over two decades ago and since then the phosphor has transcended its popular use in watch dials, safety signage, or toys with more niche applications such as stress sensing, photocatalysis, medical imaging, or flicker-free light-emitting diodes. A lot of research efforts are focused on further improving the storage capacity of SrAl 2 O 4 :Eu 2+ ,Dy 3+ , including in nanosized particles, and on finding the underlying physical mechanism to fully explain the afterglow in this material and related compounds. Here an overview of the most important results from the research on SrAl 2 O 4 :Eu 2+ ,Dy 3+ is presented and different models and the underlying physics are discussed to explain the trapping mechanism at play in these materials.

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Section: Phenomena Related To Trapping and Energy Storagesupporting

confidence: 84%

Section: Osl In Strontium Aluminate Phosphorssupporting

confidence: 81%

Persistent Luminescence in Strontium Aluminate: A Roadmap to a Brighter Future

Heggen

Joos

Feng

et al. 2022

Adv Funct Materials

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“…Further, the shallow-trap release rates were rather rapid, which, together with minor release of deep-traps, led to the presence of initial high luminance and fast-decay process as previously reported. [14][15][16] ii) Before those shallower traps became depleted, the deep-trap release processes gradually became the major contributor to the persistent luminescence phenomena. Traps with medium rates of de-trapping, which lasted about 1.1×10 4 seconds, dominantly affected the properties of both luminance and decay time of phosphorescence.…”

mentioning

confidence: 99%

Thermal Release Behavior of Carriers in Persistent Luminescence Material CaAl₂O₄:Eu²⁺,Nd³⁺

Wang¹,

Chen²,

Zhou³

et al. 2012

ECS J. Solid State Sci. Technol.

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To reveal the detailed migration processes of carriers thermally released from defects in CaAl2O4:Eu2+,Nd3+, their thermoluminescence curves recorded at different fading time were investigated. The results indicated that their trapping levels and kinetic orders were varying with fading time. As the persistent luminescence properties of CaAl2O4:Eu2+,Nd3+ are closely related with the migration manners of carriers, the variety of kinetic order indicated that the mechanism(s) of persistent luminescence is(are) more complicated than we previous proposed. Furthermore, the details of carrier thermal release processes and carrier transfer processes are illustrated with the aid of variety of parameters derived from TL curves.

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“…Note that for Tm, a second very strong TL peak is observed at 475 K, and for Er and Yb a second TL peak around 510 K. In the case of Sm 3+ , the trap depth is found to be 0.56 eV, however the corresponding integrated afterglow is about 10,000 times weaker than with Dy codoping. Very low afterglow in Sm co-doped samples have also been observed in [312]. Györi et al [313] have studied the effect of combined codoping with Dy and Ho on the afterglow in SA.…”

Section: Traps Related To Boronmentioning

confidence: 94%

Synthesis, luminescence and persistent luminescence of europium-doped strontium aluminates

Hagemann

Afshani

2021

Including Actinides

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Optically stimulated luminescence of persistent luminescence materials

Cited by 15 publications

References 7 publications

Persistent Luminescence in Strontium Aluminate: A Roadmap to a Brighter Future

Persistent Luminescence in Strontium Aluminate: A Roadmap to a Brighter Future

Thermal Release Behavior of Carriers in Persistent Luminescence Material CaAl₂O₄:Eu²⁺,Nd³⁺

Synthesis, luminescence and persistent luminescence of europium-doped strontium aluminates

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Optically stimulated luminescence of persistent luminescence materials

Cited by 15 publications

References 7 publications

Persistent Luminescence in Strontium Aluminate: A Roadmap to a Brighter Future

Persistent Luminescence in Strontium Aluminate: A Roadmap to a Brighter Future

Thermal Release Behavior of Carriers in Persistent Luminescence Material CaAl2O4:Eu2+,Nd3+

Synthesis, luminescence and persistent luminescence of europium-doped strontium aluminates

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Thermal Release Behavior of Carriers in Persistent Luminescence Material CaAl₂O₄:Eu²⁺,Nd³⁺