Communication—Luminescence Properties of a Novel l Rb2KGaF6:Mn4+ Red-Emitting Phosphor for Solid-State Lighting. (16th November 2020)

• Record Type: Journal Article
• Authors: Shi, Dongxin; Xie, Xiaoling; Pu, Haiqi; Zhang, Xi; Zhou, Qiang; Wang, Zhengliang; Ye, Yanqing; Chen, Minghong
• Is Part Of: ECS journal of solid state science and technology. Volume 9:Number 12(2020)
• Publication Date: 2020-11-16
• Subjects: LED, light emitting diode -- Luminescence -- Phosphors - Synthesis; Solid state chemistry -- Periodicals; Electronics -- Materials -- Periodicals; Electrochemistry -- Periodicals; 541.0421
• DOI: 10.1149/2162-8777/abc835
• Languages: English
• ISSNs: 2162-8777

Abstract

Abstract : A novel red-emitting Rb2 KGaF6 :Mn 4+ phosphor with octahedral particulate morphology was presented. The XRD Rietveld refinement results indicate that the phosphor crystallized into the cubic phase of Fm 3 ̄ m space group with double perovskite structure. The photo-luminescence spectrum exhibits intense red emission lines with zero-phonon line (ZPL) and v 6 peak locating at 620 and 628 nm respectively. The optical parameters of low color temperature ( T c = 3824 K) and high color rendering index ( R a = 90.2 ) from white LED imply its potential application in solid-state lighting.