Highly Efficient and Stable Luminescence from Microbeans Integrated with Cd‐Free Quantum Dots for White‐Light‐Emitting Diodes

A high luminous efficiency of quantum dots (QDs) can be attained when incorporating them into mesoporous silica particles by a non-chemical method. The obtained luminescent microbeads can be dispersed into a polymer by physical blending. Composite films demonstrate a high light-conversion efficiency, as well as an excellent stability under high-temperature and high-humidity conditions.