Optical performance of Mn4+in a new hexa-coordinated fluorozirconate complex of Cs2ZrF6

A new Mn⁴⁺doped hexafluorozirconate complex, Cs₂ZrF₆:Mn⁴⁺, was prepared successfully through a cation exchange route. With introduction of this phosphor, theR_aandT_cvalues of a YAG type WLED can be significantly improved, indicating its potential application for warm white lighting.