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Laser‐driven phosphor‐converted white light sources are highly desirable for their unprecedented energy efficiency and lighting quality. However, important challenges remain due to a lack of efficient and stable red‐emitting materials. Here Eu2+‐activated oxide‐based double perovskites are explored as red emitters with thermally stable photoluminescence. Sr3TaO5.5:Eu2+ ceramics exhibit a red emission...
A novel microwave dielectric ceramic of BaZnP2O7 with low dielectric constant and high quality factor was synthesized by a solid-state reaction method. A dense ceramic with 96.9% relative density was obtained when the ceramic was sintered at 875°C for 2h. The BaZnP2O7 ceramic sintered at 875°C for 2h possessed good microwave dielectric properties, characterized as εr=8.4, Q×f=27,925GHz (at 11.1GHz),...
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