Professor Cui and his students study the fundamental properties of nanomaterials including nanowires, colloidal nanocrystals and patterned nanostructures. They develop low-cost processing methods and address critical issues in real-world applications. When the size of materials is reduced to the nanoscale dimension, physical and chemical properties can change dramatically. In addition, nanostructures also afford new exciting opportunities of low-cost processing. Yi Cui and his students are interested in a broad range of nanoscale properties including electronic, photonic, electrochemical, mechanical, catalytic and interfacial properties. Understanding these properties has important technological implications in energy conversion and storage, electronics, biotechnology and environmental technology.