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Phototransferred thermoluminescence of BeO: Time-response profiles and mechanisms.
- Source :
-
Journal of Applied Physics . 11/21/2021, Vol. 130 Issue 19, p1-13. 13p. - Publication Year :
- 2021
-
Abstract
- Phototransferred thermoluminescence (PTTL) from BeO is reported. The conventional TL glow curve has five peaks, I–V, at 50, 182, 283, 437, and 535 °C when measured at 1 °C s−1 The dominant one is peak II. Only the first three reappear under phototransfer. Electron traps for peaks IV and V weakly contribute to the PTTL. The PTTL at peak III, supposedly associated with these weak donors, is counterintuitively intense. All PTTL peaks are affected by light-induced fading, thermal quenching, and all but peak II by thermal fading. The activation energy for thermal quenching was found as 0.56 ± 0.02 , 0.53 ± 0.05 , and 0.94 ± 0.07 eV using peaks I, II, and III, respectively. Electronic processes relevant in the PTTL of BeO are discussed. PTTL time-response profiles are analyzed using systems of coupled linear differential equations as well as by theoretical modeling. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 130
- Issue :
- 19
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 153686634
- Full Text :
- https://doi.org/10.1063/5.0067758