Laser & Optoelectronics Progress, Volume. 58, Issue 15, 1516006(2021)
Progress in Thermoluminescence Spectroscopy for Characterization of Trap Distribution in Persistent Luminescence Materials
Fig. 1. Energy band model of one trap energy level and one luminescence center[38]
Fig. 2. Influences of different kinetic processes [the first order kinetics (b=1), the second order kinetics (b=2), and the general kinetics (b=1.5)] on shape of TL peak[46]
Fig. 3. TL peak location and trap depth of CaMgSi2O6∶Mn2+,Ln3+(Ln=Dy, Pr, Ce, Nd). (a) Normalized TL curves; (b) diagram of energy level relative position in gaps of CaMgSi2O6∶Mn2+,Ln3+ for different rare earth ions[12]
Fig. 4. TL curves with different heating rates and trap depth analysis[16]. (a) SSON∶Eu; (b) SSON∶Eu,Ce; (c) SSON∶Eu,Nd; (d) SSON∶Eu, Dy; (e) plots of
Fig. 5. Trap analysis of CaS∶Eu2+,Sm3+[20]. (a) Analysis of TL curves by peak shape method; (b) photostimulated excitation spectrum of CaS∶Eu2+,Sm3+
Fig. 6. Diagrams of initial rise method[58]. (a) Selection of initial rise part; (b) Arrhenius plot of ln(I) and 1/T
Fig. 7. Fitted results of TL curves of Ba2SiO4∶Dy3+ obtained by computer fitting method (FOM∶1.6)[25]
Fig. 8. Process of trap depth-density distribution analysis[59]. (a) Schematic of trap depth distribution as a function of excitation temperature Texc; (b) TL curves under different excitation temperatures Texc; (c) density of trap at a certain depth estimated according to difference of TL integral intensities at two different excitation temperatures; (d) depth-density distribution of trap
Fig. 9. Analysis method of depth-density-time[13]. (a) TL curves for different delay time; (b) trap depth-density-action time distribution
Fig. 10. Thermal quenching curves of SrAl2O4∶Eu,Dy and TL curves before and after correction[60]
|
Get Citation
Copy Citation Text
Cong Zhang, Di Yang, Kang Shao, Zaifa Pan. Progress in Thermoluminescence Spectroscopy for Characterization of Trap Distribution in Persistent Luminescence Materials[J]. Laser & Optoelectronics Progress, 2021, 58(15): 1516006
Category: Materials
Received: Dec. 25, 2020
Accepted: Jan. 28, 2021
Published Online: Aug. 6, 2021
The Author Email: Zaifa Pan (panzaifa@zjut.edu.cn)