Si/Al order and texture orientation optimization of red-emitting Mg2Al4Si5O18:Eu2+ ceramics for laser phosphor display

Laser phosphor display technology plays an important role in advanced display projection; however, it is a challenge in maintaining excellent color accuracy under high brightness due to the lack of red spectrum. Here, red-emitting Mg2Al4Si5O18:Eu2+ 2 Al 4 Si 5 O 18 :Eu 2+ ceramics as the phosphor wheel have been optimized in chemical compositions and texture orientation. The textured Mg2Al4Si5O18:Eu2+ 2 Al 4 Si 5 O 18 :Eu 2+ ceramics have high transparency and spot limiting ability, accordingly, the ceramic wheel outputs 1,184 lm of ultra-bright red light under 50 W/mm2 2 laser power density. Moreover, the red spectral utilization (over 600 nm) of textured Mg2Al4Si5O18:Eu2+ 2 Al 4 Si 5 O 18 :Eu 2+ ceramics is 2.17 times that of traditional Y3Al5O12:Ce3+ 3 Al 5 O 12 :Ce 3+ phosphor wheel. The red-emitting textured Mg2Al4Si5O18:Eu2+ 2 Al 4 Si 5 O 18 :Eu 2+ cordierite ceramic herein enables an improved light-color saturation experience, and it is potential in the next-generation laser phosphor display applications. (c) 2024 The Authors. Published by Elsevier B.V. on behalf of The Chinese Ceramic Society. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).