Тип публикации: статья из журнала

Год издания: 2024

Идентификатор DOI: 10.1002/lpor.202401089

Аннотация: <jats:title>Abstract</jats:title><jats:p>β-Al<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> phosphors show good optical properties for highly symmetric lattices and dense frameworks. Here, an abnormal lattice shrinkage phenomenon is found in BaMg<jats:sub>1-x</jats:sub>Zn<jats:sub>x</jats:sub>Al<jats:sub>9.8</jats:sub>O<jats:sub>17<Показать полностью/jats:sub>: Cr<jats:sup>3+</jats:sup> (BM<jats:sub>1-x</jats:sub>Z<jats:sub>x</jats:sub>A: Cr<jats:sup>3+</jats:sup>) phosphors, which can be attributed to the variation in the covalency of the chemical bond. Accordingly, the denser crystal structure caused by the abnormal shrinkage improves the luminescent intensity (67%↑) and the thermal stability (69%→76%@150 °C). Internal/external quantum efficiency (IQE/EQE) of BZA: 0.2Cr<jats:sup>3+</jats:sup> reaches 95% and 52.7%, respectively. In addition, the preferential occupation of the Cr<jats:sup>3+</jats:sup> ion is discussed through the crystal field strength calculation, low-temperature spectra, and fluorescent lifetime. The unique spectrum of the phosphor derives from the occupation of Cr<jats:sup>3+</jats:sup> on the octahedral sites (Al4 and Al1) and the formation of Cr<jats:sup>3+</jats:sup>-Cr<jats:sup>3+</jats:sup> coupling pairs. Finally, the high matching rate between the absorption curve of plant pigment P<jats:sub>fr</jats:sub> and the EL spectrum of the as-prepared pc-LED expresses that it can be applied in plant lighting.</jats:p>

Журнал: Laser &amp; Photonics Reviews

ISSN журнала: 18638880

Издатель: Wiley - VCH Verlag GmbH &amp; CO. KGaA

• Zhu Hui (Hunan Optical Agriculture Engineering Technology Research Center Changsha 410128 P. R. China)
• Li Yanan (College of Bioscience and Biotechnology Hunan Agricultural University Changsha 410128 P. R. China)
• Xi Yuexiang (Hunan Optical Agriculture Engineering Technology Research Center Changsha 410128 P. R. China)
• Xin Chunli (Hunan Optical Agriculture Engineering Technology Research Center Changsha 410128 P. R. China)
• Zhou Cheng (Hunan Optical Agriculture Engineering Technology Research Center Changsha 410128 P. R. China)
• Yang Zhe (College of Agronomy Hunan Agricultural University Changsha 410128 P. R. China)
• Ruan Lang (Hunan Optical Agriculture Engineering Technology Research Center Changsha 410128 P. R. China)
• Li Yanyue (Hunan Optical Agriculture Engineering Technology Research Center Changsha 410128 P. R. China)
• Peng Yao (Hunan Optical Agriculture Engineering Technology Research Center Changsha 410128 P. R. China)
• Molokeev Maxim S. (Laboratory of Crystal Physics Kirensky Institute of Physics Federal Research Center KSC SB RAS Krasnoyarsk 660036 Russia)
• Zolotov Andrey (Siberian Federal University Krasnoyarsk 660041 Russia)
• Wang Jing (School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China)
• Zhou Zhi (College of Agronomy Hunan Agricultural University Changsha 410128 P. R. China)
• Xia Mao (Hunan Optical Agriculture Engineering Technology Research Center Changsha 410128 P. R. China)

• Ядро РИНЦ (eLIBRARY.RU)