Chemical Group Substitution Enables Highly Efficient Mn4+Luminescence in Heterovalent Systems

Ming Hong; Zhao Yifei; Zhou Yayun; Molokeev Maxim S.; Wang Yuanjing; Song Enhai; Zhang Qinyuan

Дополнительные ссылки: eLibrary

База данных: Каталог библиотеки СФУ

Библиографическое описание: Chemical Group Substitution Enables Highly Efficient Mn4+Luminescence in Heterovalent Systems : научное издание / H. H. Ming [et al.]. - Текст : непосредственный // Advanced Optical Materials. - 2023. - Т. 11, № 10. - ISSN 2195-1071, DOI 10.1002/adom.202300076.

Аннотация: AbstractDefects are a double-edged sword for heterovalent metal-ion doping phosphors. Along with the luminescence tunability of phosphors bestowed by defects, their expected luminescence efficiency would also be inevitably lowered due to the presence of these quenching sites. Herein, a chemical group substitution strategy is proposed, where inorganic polyhedrons act as the smallest chemical units during the structural evolution of the doping process. Such a method can not only effectively prevent the defect generation for charge compensation in heterovalent doping systems, but also facilitate the incorporation of activators into the matrix, leading to extremely high luminescence efficiency. The concept is first confirmed energetically favorable by first-principles simulations. As a robust experimental proof, two newly reported Mn4+-incorporated hexavalent organic-inorganic hybrid oxyfluorides (TMA)2BO2F4:Mn4+(where TMA stands for tetramethylammonium, and B = W6+or Mo6+) present high quantum efficiency (up to 94.4%) and short lifetime (down to 2.26 ms) that are superior to the commercial red phosphor K2SiF6:Mn4+(≈84.8%, ≈8.06 ms). Utilizing the differences in decay lifetimes and thermal quenching behaviors of (TMA)2BO2F4:Mn4+and K2SiF6:Mn4+, a time- and temperature-resolved single-color multiplexing mode with high-safety and easy-access is developed for information security. This work offers an effective strategy to manipulate defect generation in luminescent materials.

Год издания: 2023

Авторы: Ming Hong , Zhao Yifei , Zhou Yayun , Molokeev Maxim S. , Wang Yuanjing , Song Enhai , Zhang Qinyuan

Источник: Advanced Optical Materials

Выпуск: Т. 11, № 10

Держатель оригинала документа: Department of Physics Far Eastern State Transport University Khabarovsk 680021 Russia, Institute of Engineering Physics and Radioelectronics Siberian Federal University Krasnoyarsk 660041 Russia, Laboratory of Crystal Physics Kirensky Institute of Physics Federal Research Center KSC SB RAS Krasnoyarsk 660036 Russia, School of Physics and Optoelectronics South China University of Technology Guangzhou 510641 P. R. China, State Key Laboratory of Luminescent Materials and Devices Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, and Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices South China University of Technology Guangzhou 510641 P. R. China

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Chemical Group Substitution Enables Highly Efficient Mn4+Luminescence in Heterovalent Systems
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