Synthesis and organic-inorganic interface of colloidal lead chalcogenide nanocrystals

C nanocrystals (NC) are very promising building blocks for materials with designed functions due to their wide and easy tunability of catalytic, electronic, and optical properties by adjusting the NC composition, shape and size1. The chemistry of organic/inorganic interface in colloidal NC plays an essential role in the synthesis and growth, and strongly affects physical and chemical properties of NC. In spite of advances in the synthesis of NC and significant efforts in comprehension of chemical reactions, reaction products and surface chemistry, an understanding of chemical reactions and how organic molecules bind and pack on nanocrystal surfaces is still ambiguous.