Response to Comment on “Investigation on Anomalous Thermal Quenching of Mn4+ Luminescence in A2XF6:Mn4+” [ECS J. Solid State Sci. Technol. 10 076007 (2021)]

Yan argued that an abnormal negative thermal quenching (TQ) of the A2XF6:Mn4+ fluoride phosphors was a pitfall caused by the diminishment in optical path lengths of the spectrofluorometer originating from the increasing volume of the phosphor (namely, thermal expansion) at elevated temperatures [S. Yan, J. Solid State Sci. Technol., 9, 106004 (2020)], but not from any intrinsic effects that can be rigidly modeled based on the solid state physics. We disagree with this comment and explain in more detail that abnormal negative TQ is surely explained by the intrinsic properties of the Mn4+-activated fluoride phosphors with denying his/her previous work.