Integrated Surface Modification to Enhance the Luminescence Properties of K2TiF6:Mn4+ Phosphor and Its Application in White-Light-Emitting Diodes

• DOI: 10.1021/acsami.8b12170
• Publication Date: 2018-08-21T10:22:44Z
• Authors: Mu-Huai Fang; Chia-Shen Hsu; Chaochin Su; Wenjing Liu; Yu-Hua Wang; Ru-Shi Liu
• Keywords: Surface Modification

Narrow-band Mn4+-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 luminescence properties K2TiF6:Mn4+ (KTF) phosphor. These process are applied in initial synthesis step, coating as-synthesized powder post-treatment process, during application phosphor white-light-emitting diode (WLED) device. Surface etching is conducted remove impurities small particles KTF. Double-shell forms stable protective layer outside Atomic deposition employed for WLED