High performance of broad excitation and narrow emission green phosphor NaAl₁₁O₁₇:Eu²⁺, Mn²⁺for backlight displays

Abstract

Long-term exposures to strong blue LED display radiation such as computers and cell phones could seriously compromise sleep quality, and the development of “human-centric” trichromatic phosphors excited by UV LED...

Highly efficient blue-green dual-narrow-emission in RbAl11O17:Eu2+,Mn2+ toward wide-color-gamut human-centric backlights

“…12 Simultaneously, the unsatisfactory full width at half maximum (FWHM) of the narrow-band green-emitting b-SiAlON:Eu 2+ phosphor hinders the maximum accessible color gamut in commercial LED backlighting units, less than 90% of the National Television Standards Committee (NTSC). [13][14][15] Clearly, the need exists for further research into blue and green phosphors for humancentric display backlighting.…”

Luminescence center modulation for the synthesis of a narrow-band green phosphor: mechanism and backlighting display application

“…13 The introduction of Eu 2+ ions with broadband absorption in the n -UV region could result in a remarkable enhancement in the green narrow-band emission in hexagonal aluminate with β-alumina and magnetic-type structures such as NaAl 11 O 17 :Eu 2+ , Mn 2+ , SrMgAl 10 O 17 :Eu 2+ , and Mn 2+ . 14–16 Thus, it is noteworthy to further probe these unique materials, where the inner mechanism can be promoted for the subsequent material design of Mn 2+ -based narrow band green phosphors, especially with an enhanced UV-LED performance. 17…”