Тип публикации: статья из журнала

Год издания: 2024

Идентификатор DOI: 10.1002/adom.202302870

Аннотация: <jats:title>Abstract</jats:title><jats:p>Since Bi<jats:sup>3+</jats:sup>-activated phosphor are widely reported in phosphors-converted light-emitting diodes (pc-LEDs), developing new-high efficiency phosphors is imperative. Herein, superior internal quantum efficiency (IQE = 93.7%) and external quantum efficiency (EQE = 70.5%) are Показать полностьюachieved with blue-emitting gallate phosphor CaGdGaO<jats:sub>4</jats:sub>:Bi<jats:sup>3+</jats:sup>. Particularly, the photoluminescence excitation (PLE) spectrum ranges from 200 to 400 nm with two peaks at 337 and 368 nm, which match well with the 365 nm near ultraviolet (n-UV) chip. The blue emission is attributed to two luminescence centers caused by Bi<jats:sup>3+</jats:sup> occupying GdO<jats:sub>6</jats:sub> and CaO<jats:sub>6</jats:sub> sites. Furthermore, the thermal stability (@ 150 °C) enhanced from 73.2% to 80.1% when Ca<jats:sup>2+</jats:sup> doping. A white LED (WLED) with high color rendering index (Ra) of 93.8 is prepared by as-synthesized phosphors, indicating the potential application in WLED. The blue and red dual-emitting phosphors are achieved by co-doping Bi<jats:sup>3+</jats:sup> and Eu<jats:sup>3+</jats:sup>. Finally, the rice planting experiment presents that the blue-emitting can efficiently enhance the photosynthesis and seeding index of rice, which indicated these phosphors have significance in plant fill light.</jats:p>

Журнал: Advanced Optical Materials

ISSN журнала: 21951071

• Gai Shujie (Hunan Optical Agriculture Engineering Technology Research Center Changsha 410128 P. R. China)
• Gao Peixin (School of Chemistry and Materials Science Hunan Agricultural University Changsha 410128 P. R. China)
• Chen Ke (School of Chemistry and Materials Science Hunan Agricultural University Changsha 410128 P. R. China)
• Tang Chengzhu (College of Agronomy Hunan Agricultural University Changsha 410128 P. R. China)
• Zhao Yuanyuan (School of Chemistry and Materials Science Hunan Agricultural University Changsha 410128 P. R. China)
• Wei Jiaqi (School of Chemistry and Materials Science Hunan Agricultural University Changsha 410128 P. R. China)
• Zhang Ye (School of Chemistry and Materials Science Hunan Agricultural University Changsha 410128 P. R. China)
• Molokeev Maxim S. (World-Class Research Center “Advanced Digital Technologies” University of Tyumen Tyumen 625003 Russia)
• Xia Mao (School of Chemistry and Materials Science Hunan Agricultural University Changsha 410128 P. R. China)
• Zhou Zhi (College of Agronomy Hunan Agricultural University Changsha 410128 P. R. China)

• Ядро РИНЦ (eLIBRARY.RU)