Тип публикации: статья из журнала

Год издания: 2018

Идентификатор DOI: 10.1002/adfm.201804150

Ключевые слова: phosphor, photoluminescence, structural confinement

Аннотация: Structural confinement effect on a pair of Eu2+ and Mn2+ optical centers is developed to realize the greatly enhanced red emission attributed to the 4T1(4G)–6A1(6S) transition of Mn2+ ions. Sr9Mn1.26(2)Li0.24(2)(PO4− δ)7, when it is doped with Eu2+, emerges as a new red-emitting phosphor, and the intensity dependence of such a red Показать полностьюemission on the trace amounts of Eu2+ doping is quantitatively analyzed with a combined experimental and theoretical methods. The modeling result confirms the validity of this proposed design strategy, and the intrinsic high-efficient Eu2+–Mn2+ energy transfer process can be elucidated by the structural confinement effect featured as some Sr (Eu) close to Mn atoms. The results can initiate the exploration of Mn2+-based red phosphors for pc-white light-emitting diodes applications, and such a strategy can be easily expanded to other systems, thus opening a new perspective for the development of luminescence materials. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Журнал: Advanced Functional Materials

• Zhang Z. (The Beijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Sciences and Engineering, University of Science and Technology Beijing, Beijing, 100083, China)
• Ma C. (College of Sciences, Chongqing University of Posts and Telecommunications, Chongqing, 400065, China)
• Gautier R. (Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS, 2 rue de la Houssinière, BP 32229, Cedex 03, Nantes 44322, France)
• Molokeev M.S. (Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation, Department of Engineering Physics and Radioelectronics, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation, Department of Physics, Far Eastern State Transport University, Khabarovsk, 680021, Russian Federation)
• Liu Q. (The Beijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Sciences and Engineering, University of Science and Technology Beijing, Beijing, 100083, China)
• Xia Z. (The Beijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Sciences and Engineering, University of Science and Technology Beijing, Beijing, 100083, China)

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