Department of Chemistry , National Taiwan University , Taipei 106 , Taiwan.
Key Laboratory for Special Function Materials and Structural Design of the Ministry of the Education, School of Physical Science and Technology , Lanzhou University , Lanzhou 730000 , China.
ACS Appl Mater Interfaces. 2018 Sep 5;10(35):29233-29237. doi: 10.1021/acsami.8b12170. Epub 2018 Aug 23.
Narrow-band Mn-doped fluoride phosphors have become a research hotspot worldwide. In this study, we propose integrated surface modification processes to enhance the performance and stability of the luminescence properties of KTiF:Mn (KTF) phosphor. These integrated process are applied in the initial synthesis step, coating of the as-synthesized powder post-treatment process, and during the application of the phosphor in the white-light-emitting diode (WLED) device. Surface etching is conducted to remove impurities and small particles in KTF. Double-shell coating forms a stable protective layer outside the KTF. Atomic layer deposition is employed for the surface of the WLED device.
窄带 Mn 掺杂氟化物荧光粉已成为全球研究热点。本研究提出了综合表面改性工艺，以提高 KTiF:Mn（KTF）荧光粉发光性能的稳定性。这些综合工艺应用于初始合成步骤、合成后粉末的涂覆后处理过程，以及在白光发光二极管（WLED）器件中应用荧光粉的过程中。通过表面刻蚀去除 KTF 中的杂质和小颗粒。双层壳涂层在 KTF 外部形成稳定的保护层。原子层沉积则用于 WLED 器件的表面。
