T. Nurakhmetov, R. Shamieva, Z. Salikhodzha, N. I. Temirkulova, T. Alibay, B. Sadykova, B. Yussupbekova, A.A. Kabdulkak
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引用次数: 0
Abstract
The nature of the impurity emission and the process of creating intrinsic and impurity electron-hole trapping centers were studied by spectroscopic and thermal activation methods in Na 2 SO 4 - Pb and K 2 SO 4 - Pb phosphors. The combined radiative electronic state is formed from intrinsic SO 3 − 4 - SO − 4 and impurity Pb + - SO − 4 electron-hole trapping centers in UV-irradiated phosphors with a photon energy of 6.2 eV at 80 K. Emissions of 3.2 eV and 3.6 eV resulting from irradiation with photons with an energy of 6.2 eV are associated with intracenter transitions of 3p 1 - 1s 0 in Pb 2 + located in nonequivalent positions of the Na 2 SO 4 lattice.
通过光谱和热激活方法，研究了 Na 2 SO 4 - Pb 和 K 2 SO 4 - Pb 荧光粉中杂质发射的性质以及产生本征和杂质电子-空穴捕获中心的过程。在 80 K 光子能量为 6.2 eV 的紫外线照射下，荧光粉中的本征 SO 3 - 4 - SO - 4 和杂质 Pb + - SO - 4 电子空穴捕获中心形成了组合辐射电子态。6.2 eV 光子能量照射下产生的 3.2 eV 和 3.6 eV 发射与位于 Na 2 SO 4 晶格非等价位置的 Pb 2 + 中的 3p 1 - 1s 0 中心内跃迁有关。
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