Engineering the Optoelectronic Properties of Colloidal Alloyed Copper Chalcogenide Quantum Dots for High‐Efficiency Solar Energy Conversion.

Engineering the Optoelectronic Properties of Colloidal Alloyed Copper Chalcogenide Quantum Dots for High-Efficiency Solar Energy Conversion In article number 1900186, Xin Tong, Zhiming M. Wang, and co-workers engineer the optoelectronic properties of colloidal alloyed copper chalcogenide CuSeS quantum dos (QDs) via CdS shell coating, which consequently exhibit strong visible absorption, near-infrared emission, and ultralong lifetimes. Such pyramid-shaped CuSeS/CdS core/shell QDs are used to fabricate QDs-based photoelectrochemical cells that show high-efficiency and stable solar-to-hydrogen energy conversion. [Extracted from the article]