K 2 SiF 6 :Mn 4+ red-luminescent crystals with high external quantum efficiency (EQE max of 78%) and high thermal quenching temperature ( T 1/2 > 500 K) enabling high brightness warm white LEDs

Wenrui Zhang, Yayun Zhou, Ce Shi, Jiajun Ren, Liying Zhang, Haipeng Ji

2024Journal of Materials Chemistry C15 citationsDOI

Abstract

Millimeter-sized red-luminescent crystals were cultivated showing high external quantum efficiency (up to 78%) and high thermal quenching temperature (>500 K).

Topics & Concepts

Materials scienceQuenching (fluorescence)LuminescenceBrightnessOptoelectronicsLight-emitting diodeThermalQuantum efficiencyFluorescenceOpticsThermodynamicsPhysicsLuminescence Properties of Advanced MaterialsGlass properties and applicationsInorganic Fluorides and Related Compounds

K <sub>2</sub> SiF <sub>6</sub> :Mn <sup>4+</sup> red-luminescent crystals with high external quantum efficiency (EQE <sub>max</sub> of 78%) and high thermal quenching temperature ( <i>T</i> <sub>1/2</sub> &gt; 500 K) enabling high brightness warm white LEDs

Abstract

Topics & Concepts

K <sub>2</sub> SiF <sub>6</sub> :Mn <sup>4+</sup> red-luminescent crystals with high external quantum efficiency (EQE <sub>max</sub> of 78%) and high thermal quenching temperature ( <i>T</i> <sub>1/2</sub> > 500 K) enabling high brightness warm white LEDs