Abstract Undoped and Eu-doped CaZrO3 crystals were synthesized by the xenon lamp floating zone method, and photoluminescence (PL) and scintillation properties were investigated. The undoped CaZrO3 exhibited a broad PL spectrum peaking at around 410 nm while the Eu-doped CaZrO3 showed some sharp emission lines due to 4f-4f transition of Eu3+. The PL decay time constant of the undoped CaZrO3 was 77.8 ns while the Eu-doped CaZrO3 showed a typical value of 4f-4f transition of Eu3+. In X-ray induced scintillation spectra, undoped CaZrO3 showed a broad emission at 480 nm, and Eu-doped ones exhibited some emission lines at around 600 nm. The afterglow levels of the Eu-doped CaZrO3 were lower than that of the undoped one.

中文翻译：

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未掺杂和掺铕 CaZrO3 晶体的闪烁和发光特性

摘要 采用氙灯浮区法合成了未掺杂和掺Eu的CaZrO3晶体，并研究了光致发光（PL）和闪烁特性。未掺杂的 CaZrO3 在 410 nm 附近表现出宽的 PL 光谱峰值，而 Eu 掺杂的 CaZrO3 由于 Eu3+ 的 4f-4f 跃迁而显示出一些尖锐的发射线。未掺杂 CaZrO3 的 PL 衰减时间常数为 77.8 ns，而 Eu 掺杂 CaZrO3 显示出典型的 Eu3+ 4f-4f 跃迁值。在 X 射线诱导闪烁光谱中，未掺杂的 CaZrO3 在 480 nm 处显示出宽发射，而 Eu 掺杂的在 600 nm 附近显示出一些发射线。Eu 掺杂的 CaZrO3 的余辉水平低于未掺杂的。