Spectroscopic Properties of Pb2+-Doped BaF2 Crystals
Abstract
:1. Introduction
2. Materials and Methods
3. Results
3.1. Optical Absorption Spectra
3.2. Distribution of the Pb2+ Ions along the Crystal
3.3. Emission Spectra
4. Discussion
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
- Woody, C.L.; Levy, P.W.; Kierstead, J.A. Slow Component Suppression and Radiation Damage in Doped Baf2 Crystals. IEEE Trans. Nucl. Sci. 1989, 36, 536–542. [Google Scholar] [CrossRef]
- Mu, G.; Chen, L.; Du, J.; ** impact on the electro-optical properties of a TlBr crystal. Nucl. Instrum. Methods Phys. Res. Sect. A 2007, 578, 510–514. [Google Scholar] [CrossRef]
BaF2: x mol% PbF2 | BaF2 | x = 0.1 | x = 0.25 | x = 0.5 |
---|---|---|---|---|
Dislocation density (×104 disloc./cm2) | 8.5 | 9.8 | 6.1 | 3.2 |
BaF2: x mol% PbF2 | A Band (nm) A1 A2 | D Band (nm) D1 D2 | E Band (nm) |
---|---|---|---|
x = 0.5 | 290.5 (289.2; 295.2) * | 203.2 (202; 207.4) * | 194.5 * |
x = 0.25 | 290.5 (289.4; 295) * | 203.1 (202; 207.3) * | 194.5 * |
x = 0.1 | 290.5 (289.6; 295.1) * | 203.1 (202.4; 207.8) * | 194.6 * |
x = 0.05 | 290.3 (289.4; 295) * | 203.6 (203.4; 208.4) * | 194 |
Sample | A (nm) Band | C (nm) Band | D (nm) Band | E (nm) Band |
---|---|---|---|---|
CaF2:0.5 mol% PbF2 | 306.3 (305; 307) * | 243.6 (243.5; 230.6) * | 206.1 (203.8; 207) * | 195 |
BaF2:0.5 mol% PbF2 | 290.5 (289.2; 295.2) * | 203.2 (202; 207.4) * | 194.5 * |
Concentration of PbF2 (x mol%) | x = 0.05 | x = 0.1 | x = 0.25 | x = 0.5 | ||
---|---|---|---|---|---|---|
290 nm | 203 nm | 290 nm | 203 nm | 290 nm | ||
keff | 1.33 | 1.34 | 1.26 | 1.29 | 2.4 | 1.24 |
Crystal length, L (mm) | 39.5 | 46.34 | 46.34 | 55.95 | ||
The number of monitored slices | 8 | 10 | 12 | 15 |
BaF2: x mol PbF2 | A Band Absorption | A Band Excitation (λmon = 320 nm) | A Band Emission (λexc = 290 nm) | Stokes Shift | |||
---|---|---|---|---|---|---|---|
nm | cm−1 | nm | cm−1 | nm | cm−1 | cm−1 | |
x = 0.05 | 289.4 | 34,554 | 282.1 | 35,448 | 302.2 | 33,090 | 2358 |
295 | 33,898 | 291.1 | 34,352 | 320.5 | 31,201 | 3151 | |
x = 0.1 | 289.6 | 34,544 | 282.9 | 35,348 | 302 | 33,112 | 2236 |
295.1 | 33,891 | 290.5 | 34,423 | 320.2 | 31,230 | 3193 | |
x = 0.25 | 289.4 | 34,554 | 281.9 | 35,473 | 303.1 | 32,992 | 2481 |
295 | 33,898 | 291.9 | 34,258 | 320.8 | 31,172 | 3086 | |
x = 0.5 | 289.2 | 34,561 | 280.8 | 35,612 | 303.2 | 32,981 | 2631 |
295.2 | 33889 | 292.7 | 34164 | 320.2 | 31230 | 2934 |
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Buse, G.; Stef, M.; Nicoara, I. Spectroscopic Properties of Pb2+-Doped BaF2 Crystals. Crystals 2023, 13, 659. https://doi.org/10.3390/cryst13040659
Buse G, Stef M, Nicoara I. Spectroscopic Properties of Pb2+-Doped BaF2 Crystals. Crystals. 2023; 13(4):659. https://doi.org/10.3390/cryst13040659
Chicago/Turabian StyleBuse, Gabriel, Marius Stef, and Irina Nicoara. 2023. "Spectroscopic Properties of Pb2+-Doped BaF2 Crystals" Crystals 13, no. 4: 659. https://doi.org/10.3390/cryst13040659