Efficient Tandem Quantum‐Dot LEDs Enabled by An Inorganic Semiconductor‐Metal‐Dielectric Interconnecting Layer Stack (Adv. Mater. 4/2022)

Quantum-Dot Light-Emitting Diodes Light-emitting diodes (LEDs) in a tandem configuration offer a strategy to realize high-performance, multi-color devices, but the efficiency of tandem quantum-dot based LEDs (QLEDs) has been limited due to unpassivated interfaces and solvent damage originating from the materials processing requirements of the interconnecting layers (ICLs). In article number 2108150, Edward H. Sargent, Xuyong Yang, and co-workers report an ICL consisting of a semiconductor–metal–dielectric stack that provides facile fabrication, materials stability, and good optoelectronic coupling, making the tandem QLED based on the ICL achieve recording efficiency.