期刊论文

Wang, Jing;Zhou, Zhi;Qiu, Jianbei

英文

Journal of Materials Chemistry C

2050-7526

2019

7

8

2401-2407

10.1039/c8tc06083e

NSFCNational Natural Science Foundation of China (NSFC) [51772336, 51572302, 51702373]; National Key R&D Program of China [2018YFB0406800, 2018YFB0406801]; National Basic Research Program of ChinaNational Basic Research Program of China [2014CB643801]; Guangdong Provincial Science & Technology Project [2015B090926011, 2017A050501008, 2013B090800019]; Teamwork Projects of Guangdong Natural Science Foundation [S2013030012842]; Guangzhou Science & Technology Project [201807010104]; Platform Program of Hunan Provincial Department of Science [2018TP2003]; Open Fund of Key Laboratory of Advanced Materials of Yunnan Province (Kunming University of Science and Technology) [2018KF02]; Recruitment Program of High-end Foreign Experts [GDW20145200225]; Programme for the Foreign Experts by Chongqing University of Posts and Telecommunications; Ministry of Education and Research of EstoniaMinistry of Education and Research, Estonia [PUT430]; Estonian Research Council grantEstonian Research Council [PUT PRG111]; European Regional Development FundEuropean Commission [TK141]

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Narrow-band red-emitting fluoride phosphors for wide color gamut LED backlights have evoked considerable attention, due to their fascinating optical properties. Unfortunately, poor moisture resistance often restricts their further applications in optoelectronics. Herein we developed a Cs 2 SiF 6 :Mn 4+ red phosphor using a lowerature co-precipitation method and passivating it by using H 2 O 2 . The phosphor shows a very high external quantum efficiency (EQE) of ∼85% and exhibits excellent moisture stability retaining 74% of its emission intens...