Vijay Narasimhan explains how he and colleagues in the Yi Cui Group at Stanford University discovered how to hide metal wires in solar cells and funnel light directly to the semiconductor below. The new technique has the potential to improve the relative efficiency of solar cells by 10 percent.


ACS Nano

Cui Group

Global Climate and Energy Project






Video: Mark Shwartz, Precourt Institute for Energy, Stanford University

Video and microscopy images of experimental gold sheet & silicon nanopillars: Vijay Narasimhan and Yi Cui, Stanford University

B-roll of solar-cell manufacturing & testing: U.S. Department of Energy and National Renewable Energy Laboratory (NREL

November 25, 2015