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Updated: Sep 26, 2026

Low-energy Cathodoluminescence for (Oxy)Nitride Phosphors
Published on: November 15, 2016
Enabling narrow-band red circularly polarized luminescence in Mn4+-activated fluorides via chiral cation engineering
Zixiong Yao1, Yuhuan Tan1, Jiawei Qiang2
1Key Laboratory of Light Energy Conversion Materials of Hunan Province College, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China. chemwlzhou@hunnu.edu.cn.
Abstract:
Enantiomeric protonated 2-amino-1-propanol (APH+) chiral cations are introduced to partially substitute K+ sites in K2TiF6:Mn4+, triggering effective chirality transfer to Mn4+ luminescent centers. The as-prepared chiral hybrid fluorides exhibit mirror-image circular dichroism and narrow-band red CPL originating from Mn4+ 2Eg → 4A2g transitions, with a maximum |glum| up to 2.0 × 10-3.
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