التفاصيل البيبلوغرافية
| العنوان: |
Tunable Narrowband to Wideband emission of Mn2+, Eu2+ Co-doped GdMgAl11O19 for multifunctional applications. |
| المؤلفون: |
Li, Jianlong1 (AUTHOR), Li, Hao1 (AUTHOR), Hao, Keming2 (AUTHOR), Li, Yanjiao2 (AUTHOR), Kang, Xiang2 (AUTHOR), Lu, Peizhen2 (AUTHOR), Huang, Xinglin2 (AUTHOR), Wu, Quansheng2 (AUTHOR), Ding, Jianyan1,2 (AUTHOR) dingjy1991@qq.com |
| المصدر: |
Optical Materials. Sep2024, Vol. 155, pN.PAG-N.PAG. 1p. |
| مصطلحات موضوعية: |
*GREEN light, *LIQUID crystal displays, *LIGHT emitting diodes, *ENERGY transfer, *DOPING agents (Chemistry), *PHOTOLUMINESCENCE |
| مستخلص: |
As the widespread application of white light-emitting diodes (WLEDs) in lighting field and liquid crystal display (LCD) backlight, the development of phosphors toward multifunctional applications is considered to be an inevitable tendency. In this work, multi-color light emissions have been realized in Eu2+ and Mn2+-activated magnetoplumbite-type GdMgAl 11 O 19 (GMAO) along with adjustable photoluminescence properties. Significantly, a promising narrow-band green light emission can be achieved by Mn2+-activated GMAO with the full width at half maximum (FWHM) of 27 nm, and such narrow emission band makes the as-prepared WLED device reach 121 % of National Television Standards Committee (NTSC), which can act as an ideal LCD backlight. On the other hand, the broad cyan light can be achieved in Eu2+-activated GMAO. Moreover, multi-color light emissions have been realized in Eu2+ and Mn2+ co-doped GMAO, and the energy transfer from Eu2+ to Mn2+ ions was established. Benefitting from the broad band cyan light emission of Eu2+ ion, a promising WLED device with high color rendering index (CRI) of 90 has been fabricated by using Eu2+ and Mn2+ co-doped sample. The result indicates the multifunctional applications of the GMAO modulated by Eu2+ and Mn2+ activators. A novel multi-color light emissions phosphor of GdMgAl 11 O 19 : Eu2+, Mn2+ with multifunctional applications has been successfully synthesized. [Display omitted] • Multi-color light emissions have achieved in Eu2+ and Mn2+-activated GdMgAl 11 O 19. • GdMgAl 11 O 19 : Mn2+ emits a narrow-band green light with FWHM of 27 nm. • The color gamut of as-prepared WLED device reach 121 % of National Television Standards Committee. • GdMgAl 11 O 19 : Mn2+ performs good thermal stability. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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