Optically stimulated luminescence properties of Tl-doped NH4Cl transparent ceramics fabricated by SPS method

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Abstract

We fabricated Tl-doped NH4Cl transparent ceramics using SPS method with varying Tl concentrations (0%, 0.01%, 0.05%, 0.1%, 0.5%, and 1%) and evaluated the properties of photoluminescence (PL), radioluminescence (RL), and optically stimulated luminescence (OSL). In PL and RL spectra, Tl-doped samples exhibited two emission peaks at around 380 and 530 nm due to the 3P1→ 1S0 transitions of Tl+ and the off-center self-trapped excitons near Tl+, respectively. In the OSL spectra, Tl-doped samples exhibited an emission peak at around 350 nm due to the 3P1 → 1S0 transitions of Tl+. In the OSL dose–response function, all the samples showed a good linearity over a range of 10–10,000 mGy.

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Onoda, D., Kimura, H., Nakauchi, D., Kato, T., Kawaguchi, N., & Yanagida, T. (2021). Optically stimulated luminescence properties of Tl-doped NH4Cl transparent ceramics fabricated by SPS method. Journal of Asian Ceramic Societies. https://doi.org/10.1080/21870764.2021.1966979

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