Comprehensive Defect Suppression in Te‐Doped Cs₂ZrCl₆ Perovskite Nanoparticles for Highly Efficient and Thermally Stable White Light‐Emitting Diodes (Advanced Optical Materials 26/2024)

Defect Suppression in Te-Doped Cs2ZrCl6 Perovskite Nanoparticles Lead-free Cs2ZrCl6:Te (CZCT) @ alkyl-terminated silica-oligomer (ASO) core/shell perovskite nanoparticles (PNCs) were designed and synthesized with the highest photoluminescence quantum yield (PLQY) of up to 96% and robust thermal tolerance simultaneously. The high PLQY was attributed to the comprehensive defect suppression through crystallization and surface control. The fabricated white light-emitting diodes based on the CZCT@ASO PNCs exhibit a color coordinate of (0.31, 0.33) and a color rendering index of 86. For further details, see article number 2303079 by Guangguang Huang, Shujie Wang, Zuliang Du, and co-workers from Henan University (the Iron Pagoda in the image representing its culture and spirit).