Тип публикации: статья из журнала

Год издания: 2022

Идентификатор DOI: 10.1002/adom.202200882

Аннотация: <jats:title>Abstract</jats:title><jats:p>Cr<jats:sup>3+</jats:sup>-activated broadband near-infrared (NIR) phosphors, featured by the octahedral coordination preference and strong absorption in visible (Vis) region, have great potential application in nondestructive assessment. It is still a challenge to develop Cr<jats:sup>3+</jatПоказать полностьюs:sup>-doped phosphors with the tetrahedrally coordinated Cr<jats:sup>3+</jats:sup> NIR emission behavior and ultra-wide Vis–NIR luminescence. Herein, an unusual NIR-emitting Mg<jats:sub>2</jats:sub>Al<jats:sub>4</jats:sub>Si<jats:sub>5</jats:sub>O<jats:sub>18</jats:sub>:Cr<jats:sup>3+</jats:sup> phosphor offers emission peak at 867 nm with full-width at half-maximum of 237 nm due to preferential occupation of the AlO<jats:sub>4</jats:sub> tetrahedra by Cr<jats:sup>3+</jats:sup> as demonstrated by structural and optical properties studies. Eu<jats:sup>2+</jats:sup>–Cr<jats:sup>3+</jats:sup> energy transfer is proposed to induce ultra-wide Vis–NIR Mg<jats:sub>2</jats:sub>Al<jats:sub>4</jats:sub>Si<jats:sub>5</jats:sub>O<jats:sub>18</jats:sub>:Eu<jats:sup>2+</jats:sup>,Cr<jats:sup>3+</jats:sup> phosphors with more efficient NIR emission and lower thermal quenching behavior of Cr<jats:sup>3+</jats:sup>. The fabricated Vis–NIR phosphor-converted light-emitting diode is expected to be an alternative to halogen lamp in hyperspectral imaging. This work reveals the luminescence behavior of Cr<jats:sup>3+</jats:sup> in tetrahedra and demonstrates the application of Mg<jats:sub>2</jats:sub>Al<jats:sub>4</jats:sub>Si<jats:sub>5</jats:sub>O<jats:sub>18</jats:sub>:Eu<jats:sup>2+</jats:sup>,Cr<jats:sup>3+</jats:sup> phosphor in hyperspectral imaging, which will facilitate further research on NIR and Vis–NIR phosphors.</jats:p>

Журнал: Advanced Optical Materials

Выпуск журнала: Т. 10, № 19

ISSN журнала: 21951071

• Zou Xikun (Key Laboratory for Biobased Materials and Energy of Ministry of Education College of Materials and Energy South China Agricultural University Guangzhou Guangdong 510642 P. R. China)
• Zhang Haoran (Maoming Branch Guangdong Laboratory for Lingnan Modern Agriculture Maoming Guangdong 525100 P. R. China)
• Li Wei (Key Laboratory for Biobased Materials and Energy of Ministry of Education College of Materials and Energy South China Agricultural University Guangzhou Guangdong 510642 P. R. China)
• Zheng Mingtao (Maoming Branch Guangdong Laboratory for Lingnan Modern Agriculture Maoming Guangdong 525100 P. R. China)
• Molokeev Maxim S. (Laboratory of Crystal Physics Kirensky Institute of Physics Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences (KSC FRC SB RAS) Krasnoyarsk 660036 Russia)
• Xia Zhiguo (The State Key Laboratory of Luminescent Materials and Devices Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques School of Physics and Optoelectronics South China University of Technology Guangzhou 510641 P. R. China)
• Zheng Yinjian (Institute of Urban Agriculture Chinese Academy of Agricultural Sciences Chengdu 610213 P. R. China)
• Li Qingming (Institute of Urban Agriculture Chinese Academy of Agricultural Sciences Chengdu 610213 P. R. China)
• Liu Yingliang (Key Laboratory for Biobased Materials and Energy of Ministry of Education College of Materials and Energy South China Agricultural University Guangzhou Guangdong 510642 P. R. China)
• Zhang Xuejie (Key Laboratory for Biobased Materials and Energy of Ministry of Education College of Materials and Energy South China Agricultural University Guangzhou Guangdong 510642 P. R. China)
• Lei Bingfu (Maoming Branch Guangdong Laboratory for Lingnan Modern Agriculture Maoming Guangdong 525100 P. R. China)

• Ядро РИНЦ (eLIBRARY.RU)