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the claim

The color of light emitted by thermoluminescent stones is determined by specific crystal lattice defects and impurities

the verdict
SUPPORTED
the evidence backs this
Recorded sources
5 sources for · 0 against

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Is it true that the color of light emitted by thermoluminescent stones is determined by specific crystal lattice defects and impurities?

Yes. Multiple studies demonstrate that the thermoluminescent properties and emission characteristics of crystalline materials are fundamentally governed by their specific impurities, dopants, and crystal lattice defects.

Verdict: SUPPORTED · 5 sources for, 0 against · Last checked

The analysis

The retrieved papers consistently support the claim that crystal lattice defects and impurities determine the thermoluminescent and optical properties of stones and phosphors. Papers [1], [2], [7], [9], and [10] explicitly link specific defects (such as vacancies, interstitial atoms, and trap distributions) and impurities (dopants like Mn, Cr, Ce) to thermoluminescence emission mechanisms.

Evidence for · 5
Interstitial oxygen defect induced mechanoluminescence in KCa(PO3)3:Mn2+
2020
The study demonstrates how interstitial oxygen defects and manganese impurities are crucial for forming trap levels and determining luminescence properties in crystalline materials.
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Chen, H., Bai, Y., Zheng, L., Wu, L., Wu, L., Kong, Y., Zhang, Y., & Xu, J. (2020). Interstitial oxygen defect induced mechanoluminescence in KCa(PO3)3:Mn2+. doi.org. https://doi.org/10.1039/d0tc00323a

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More for · 4
Multi-Mode Luminescence in Smart Near-Infrared Cr3+/Pr3+ Codoped SrGa12O19 Phosphors Induced by Three Distinct Excitation Mechanisms.
2024
The research highlights how inherent cation vacancies and defects in the phosphor matrix govern diverse luminescence behaviors, including thermoluminescence.
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Wang, Y., Lin, N., Yue, Y., Wang, J., Li, Y., Wu, Z., Xu, S., & Bai, G. (2024). Multi-Mode Luminescence in Smart Near-Infrared Cr3+/Pr3+ Codoped SrGa12O19 Phosphors Induced by Three Distinct Excitation Mechanisms.. doi.org. https://doi.org/10.1021/acsami.4c07033

The Influence of Energy Levels and Defects on the Thermoluminescence of LiF: SiO5 Phosphors Doped with Ce3+
2025
Investigation into LiF phosphors confirms that dopant-induced structural modifications and defects dictate thermoluminescent glow curves and electron capture mechanisms.
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Etefa, H., Mbuyise, X. G., Geldasa, F. T., Mola, G. T., Chithambo, M., & Dejene, F. B. (2025). The Influence of Energy Levels and Defects on the Thermoluminescence of LiF: SiO5 Phosphors Doped with Ce3+. doi.org. https://doi.org/10.3390/ijms26073183

Cr dopant induced tailoring of intrinsic defects and trap distribution in MgAl2O4 nanocrystals: electron spin resonance and thermoluminescence
2023
Analysis of Cr-doped nanocrystals shows that dopant concentrations directly alter intrinsic defects and trap distributions, thereby shaping thermoluminescence responses.
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Savita, Kumar, S., Vij, A., & Thakur, A. (2023). Cr dopant induced tailoring of intrinsic defects and trap distribution in MgAl2O4 nanocrystals: electron spin resonance and thermoluminescence. doi.org. https://doi.org/10.1088/1361-6463/acb2d8

Dosimetric features, kinetics and mechanisms of thermoluminescence of tanzanite
2020
The study elucidates how specific point defects and trapped charge carriers dictate the thermoluminescent peak characteristics and emission properties of tanzanite.
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Chithambo, M. & Folley, D. (2020). Dosimetric features, kinetics and mechanisms of thermoluminescence of tanzanite. doi.org. https://doi.org/10.1016/j.physb.2020.412435

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first checked04 Aug 2026
judged → SUPPORTED · 8404 Aug 2026
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