Ligand Engineering Triggered Efficiency Tunable Emission in Zero-Dimensional Manganese Hybrids for White Light-Emitting Diodes : научное издание

Ren Qiqiong; Zhang Jian; Mao Yilin; Molokeev Maxim S.; Zhou Guojun; Zhang Xian-Ming

Дополнительные ссылки: eLibrary

База данных: Каталог библиотеки СФУ

Библиографическое описание: Ligand Engineering Triggered Efficiency Tunable Emission in Zero-Dimensional Manganese Hybrids for White Light-Emitting Diodes : научное издание / Q. Q. Ren [et al.]. - Текст : непосредственный // Nanomaterials. - 2022. - Т. 12, № 18. - P. 3142. - This work was supported by the Natural Science Foundation of Shanxi Province (No. 20210302124054), National Natural Science Foundation of China (No. 21871167), Science and Technology Innovation Project of Colleges and Universities in Shanxi Province (No. 2021L262), 1331 Project of Shanxi Province and the Postgraduate Innovation Project of Shanxi Normal University (No.2021XSY040), and funded by RFBR according to the research project No. 19−52−80003. - ISSN 2079-4991, DOI 10.3390/nano12183142.

Аннотация: Zero-dimensional (0D) hybrid manganese halides have emerged as promising platforms for the white light-emitting diodes (w-LEDs) owing to their excellent optical properties. Necessary for researching on the structure-activity relationship of photoluminescence (PL), the novel manganese bromides (C13H14N)2MnBr4 and (C13H26N)2MnBr4 are reported by screening two ligands with similar atomic arrangements but various steric configurations. It is found that (C13H14N)2MnBr4 with planar configuration tends to promote a stronger electron-phonon coupling, crystal filed effect and concentration-quenching effect than (C13H26N)2MnBr4 with chair configuration, resulting in the broadband emission (FWHM = 63 nm) to peak at 539 nm with a large Stokes shift (70 nm) and a relatively low photoluminescence quantum yield (PLQY) (46.23%), which makes for the potential application (LED-1, Ra = 82.1) in solid-state lighting. In contrast, (C13H26N)2MnBr4 exhibits a narrowband emission (FWHM = 44 nm) which peaked at 515 nm with a small Stokes shift (47 nm) and a high PLQY of 64.60%, and the as-fabricated white LED-2 reaches a wide colour gamut of 107.8% National Television Standards Committee (NTSC), thus highlighting the immeasurable application prospects in solid-state display. This work clarifies the significance of the spatial configuration of organic cations in hybrids perovskites and enriches the design ideas for function-oriented low-dimensional emitters.

Год издания: 2022

Авторы: Ren Qiqiong , Zhang Jian , Mao Yilin, Molokeev Maxim S. , Zhou Guojun , Zhang Xian-Ming

Издательство: MDPI AG

Источник: Nanomaterials

Выпуск: Т. 12, № 18

Номера страниц: 3142

Держатель оригинала документа: Far Eastern State Transport University, Kemerovo State University, Krasnoyarsk Science Centre of the Siberian Branch of Russian Academy of Science, Shanxi Normal University, Taiyuan University of Technology

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Ligand Engineering Triggered Efficiency Tunable Emission in Zero-Dimensional Manganese Hybrids for White Light-Emitting Diodes : научное издание
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