Luminescent semiconducting quantum dots (QDs) are central to emerging technologies that range from tissue imaging to solid-state lighting. However, existing samples are heterogeneous, which has prevented atomic-resolution determination of their structures and obscured the relationship between their atomic and electronic structures. In this work, we synthesized, isolated and structural characterized  three cadmium selenide QDs with… Read More PDF combined with SCXRD solves the atomic structure of tetrahedral quantum dots