Study on the Luminescence Performance and Anti-Counterfeiting Application of Eu2+, Nd3+ Co-Doped SrAl2O4 Phosphor
Abstract
:1. Introduction
2. Experimental Methods
2.1. Materials and Preparation
2.2. Synthesis of Materials
2.3. Anti-Counterfeit Ink Preparation
2.4. Characterizing Instruments
3. Results and Discussion
3.1. XRD Structure Analysis
3.2. Elemental Analysis
3.3. SEM Analysis
3.4. Photoluminescence Analysis
3.5. UV–Vis Diffuse Reflectance
3.6. Photoluminescence Quantum Yield (PLQY)
3.7. Fluorescence Lifetime and Afterglow Decay
3.8. Anti-Counterfeiting Application
4. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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2θ | FWHM (β) | Lattic Spacing (d) | Intensity (I) | hkl | Crystallite Size (D) | Dislocation Density (δ) | Micro-Strain (ε) |
---|---|---|---|---|---|---|---|
20.066 | 0.257 | 0.442 | 60 | 011 | 31.010 | 1.040 | 6.345 |
28.487 | 0.222 | 0.313 | 95 | −211 | 36.589 | 0.747 | 3.808 |
29.370 | 0.206 | 0.304 | 100 | 220 | 39.424 | 0.643 | 3.430 |
30.002 | 0.204 | 0.298 | 79 | 211 | 39.775 | 0.632 | 3.330 |
35.147 | 0.367 | 0.255 | 67 | 031 | 22.430 | 1.988 | 5.062 |
Method | Atomic% | ||||
---|---|---|---|---|---|
Sr | Al | O | Eu | Nd | |
XPS | 9.90 | 20.16 | 66.50 | 0.77 | 2.67 |
EDS | 10.40 | 31.20 | 57.90 | 0.30 | 0.20 |
Nd3+ | Decay Lifetimes (ns) | ||||||
---|---|---|---|---|---|---|---|
A1 | τ1 | A2 | τ2 | A3 | τ3 | τ* | |
0.00 | 256 | 8 | 343 | 96 | 367 | 468 | 404 |
0.005 | 668 | 6 | 250 | 48 | 88 | 325 | 221 |
0.01 | 804 | 5 | 195 | 30 | 24 | 193 | 76 |
0.02 | 169 | 17 | 825 | 3 | 22 | 121 | 46 |
0.03 | 719 | 3 | 231 | 22 | 48 | 196 | 119 |
0.05 | 69 | 41 | 919 | 3 | 13 | 301 | 135 |
Nd3+ | Afterglow Decay Time (s) | ||||||
---|---|---|---|---|---|---|---|
A1 | τ1 | A2 | τ2 | A3 | τ3 | τ* | |
0.01 | 33,392 | 2 | 53,015 | 0 | 6063 | 15 | 8 |
0.02 | 709 | 1 | 1503 | 0 | 85 | 21 | 13 |
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Wang, Z.; Liu, Q.; Wang, J.; Qi, Y.; Li, Z.; Li, J.; Zhang, Z.; Wang, X.; Li, C.; Wang, R. Study on the Luminescence Performance and Anti-Counterfeiting Application of Eu2+, Nd3+ Co-Doped SrAl2O4 Phosphor. Nanomaterials 2024, 14, 1265. https://doi.org/10.3390/nano14151265
Wang Z, Liu Q, Wang J, Qi Y, Li Z, Li J, Zhang Z, Wang X, Li C, Wang R. Study on the Luminescence Performance and Anti-Counterfeiting Application of Eu2+, Nd3+ Co-Doped SrAl2O4 Phosphor. Nanomaterials. 2024; 14(15):1265. https://doi.org/10.3390/nano14151265
Chicago/Turabian StyleWang, Zhanpeng, Quanxiao Liu, Jigang Wang, Yuansheng Qi, Zhenjun Li, Junming Li, Zhanwei Zhang, Xinfeng Wang, Cuijuan Li, and Rong Wang. 2024. "Study on the Luminescence Performance and Anti-Counterfeiting Application of Eu2+, Nd3+ Co-Doped SrAl2O4 Phosphor" Nanomaterials 14, no. 15: 1265. https://doi.org/10.3390/nano14151265