By looking at a piece of material in cross section, Washington University in St. Louis engineer Parag Banerjee, PhD, and his team discovered how copper sprouts grass-like nanowires that could one day be made into solar cells.
Banerjee, assistant professor of materials science and an
expert in working with nanomaterials, Fei Wu, graduate research assistant, and
Yoon Myung, PhD, a postdoctoral research associate, also took a step toward
making solar cells and more cost-effective.