The interconfigurational (4f¹5d¹ 鈫?#xa0;4f²) luminescence of Pr³⁺ in LuPO₄, K₃Lu(PO₄)₂ and LiLuSiO₄

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• 作者：A.M. Srivastava^a ; ^{srivastava@crd.ge.com} ; Morgan Jennings^b ; ¹ ; J. Collins^b
• 关键词：Pr3+ luminescence ; Inter- and intraconfigurational emission transitions ; Stokes shift
• 刊名：Optical Materials
• 出版年：2012
• 期刊代码：81_09253467
• 类别：ch
• 出版时间：June, 2012
• 卷：34
• 期：8
• 页码：1347-1352
• 文件大小：558 K

摘要

The room temperature emission spectra of Pr³⁺ in LuPO₄, K₃Lu(PO₄)₂ and LiLuSiO₄ is dominated by the interconfigurational (4f¹5d¹ 鈫?#xA0;4f²) emission transition. The luminescence of Pr³⁺ activated LuPO₄ is characterized by a very small Stokes shift of emission [600 cm^鈭? (0.07 eV)]. The emission spectrum of Pr³⁺ activated LiLuSiO₄ exhibits weak 4f² 鈫?#xA0;4f² intraconfigurational emission transitions in addition to the 4f¹5d¹ 鈫?#xA0;4f² emission transitions. The factors, which are responsible for minimizing the nonradiative relaxation of the Pr³⁺ 4f¹5d¹ level to the 4f² levels, are determined from a comparative study of the present data with the data that is available in the archival literature.