Determining the kinetic parameters of traps in quartz using the thermally modulated OSL method

Biernacka, Magdalena; Chruścińska, Alicja; Palczewski, Piotr; Derkowski, Paweł

doi:10.1016/j.jlumin.2022.119289

Cited by 2 publications

(5 citation statements)

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“…These values are similar to those obtained for natural quartz that is regularly used for luminescence dating on similar time scales. [62] We also charged a sample at different temperatures (T charge ), after which it was allowed to cool to room temperature prior to taking TL measurements (Figure 5c). As the temperature increased, the high-temperature traps were preferentially filled.…”

Section: Resultsmentioning

confidence: 99%

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Long‐Lived UV‐Rewritable Luminescent Memory in a Fluoroperovskite Crystal

Schuyt,

Williams,

Chong

2023

Advanced Optical Materials

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Photostimulated luminescence phosphors are promising candidates for next‐generation optical data storage devices. Herein, optically‐reversible luminescence modulation is demonstrated using UV wavelengths in the fluoroperovskite RbCdF3:Mn, where the modulation is mediated by photostimulated luminescence processes. UV‐C stimulation enhances the luminescence from Mn2+ centers and simultaneously fills electron traps. This charging process occurs via electron transfer from Mn2+ ions to fluorine vacancies, yielding Mn3+ ions and F‐centers, and is mediated by conduction band transport. UV‐A stimulation restores the material to the initial state. This discharging process occurs via electron transfer from F‐centers to Mn3+ ions and is similarly mediated by conduction band transport. Moreover, the discharging process manifests Mn2+ photostimulated luminescence. The primary trap state has activation energies in the range 1.46 to 1.73 eV and has room temperature lifetimes exceeding 40 000 years. A kinetic model is presented and evaluated that accurately describes the charge transport and luminescence properties of the material. Thus, a material is presented via which ultra‐long term, multi‐level luminescent data storage can be realized, and a model via which precise control over the luminescence modulation and photostimulated luminescence intensities can be achieved.

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Section: Resultsmentioning

confidence: 99%

“…These values are similar to those obtained for natural quartz that is regularly used for luminescence dating on similar time scales. [ 62 ]…”

Section: Resultsmentioning

confidence: 99%

Long‐Lived UV‐Rewritable Luminescent Memory in a Fluoroperovskite Crystal

Schuyt,

Williams,

Chong

2023

Advanced Optical Materials

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“…In light of the research mentioned above, the fundamental problem in OTDC experiments is separating the fast OSL component from other components for investigations. As previously shown, the TM-OSL method with 620 nm wavelength stimulation enables the separation of the fast OSL component in quartz [ 13 , 14 , 15 , 16 ]. It is important to note that the method allows for detecting the fast component even in samples in which its intensity is very low.…”

Section: Discussionmentioning

confidence: 99%

“…Samples measured are listed in the legend of Table 1 . The OTDC protocol using the TM-OSL 620 nm method was described in detail previously [ 16 ]. The modification of this protocol applied here consisted in replacing the preheat up to 150 °C with the preheat to the highest holding temperature of those used in the protocol (in this case it was 280 °C).…”

Section: Methodsmentioning

confidence: 99%

“…Recently OSL thermal depletion curves (OTDC) were constructed using TM-OSL 620 nm instead of CW-OSL 470 nm for analyzing the thermal stability of traps responsible for the fast OSL component in sedimentary quartz. The trap parameters found in this way were compared with those obtained using other methods such as initial rise, variable heating rate and TL peak fitting [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

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Trap Parameters for the Fast OSL Signal Component Obtained through Analytical Separation for Various Quartz Samples

et al. 2022

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Trap stability is essential in luminescence dating and thermochronometry. Trap depth and frequency factors determining the stability of the fast component of optically stimulated luminescence (OSL) in quartz, which is the most important in dating, have yet to be uniquely determined, especially for samples with an OSL signal not dominated by this component. One can determine them in OSL thermal depletion curve (OTDC) experiments. The separation of the fast OSL signal undisturbed by other OSL components is vital for obtaining accurate parameters for the traps of interest. This work presents a method of simultaneous thermal and optical stimulation using red light (620 nm) to separate the fast OSL component (the thermally modulated OSL method—TM-OSL). The OTDC experiment with the TM-OSL stimulation was used for the trap parameter determination on a variety of quartz samples, leading us to report for the first time, the trap parameters for the fast OSL component analytically separated in quartz from rock samples. The results obtained for these samples with the fast component of low intensity are consistent with those with an intensive fast OSL component. Results of OTDC measurements for all investigated quartz samples were tested for a wide range of irradiation doses.

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Determining the kinetic parameters of traps in quartz using the thermally modulated OSL method

Cited by 2 publications

References 70 publications

Long‐Lived UV‐Rewritable Luminescent Memory in a Fluoroperovskite Crystal

Long‐Lived UV‐Rewritable Luminescent Memory in a Fluoroperovskite Crystal

Trap Parameters for the Fast OSL Signal Component Obtained through Analytical Separation for Various Quartz Samples

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