Building on 3D solar cell technology, boy discovers way to capture both UV and visible light.
"In his project, 'A Highly-Efficient 3-Dimensional Nanotube Solar Cell for Visible and UV Light,' William invented a novel solar panel that enables light absorption from visible to ultraviolet light. He designed carbon nanotubes to overcome the barriers of electron movement, doubling the light-electricity conversion efficiency. William also developed a model for solar towers and a computer program to simulate and optimize the tower parameters. His optimized design provides 500 times more light absorption than commercially-available solar cells and nine times more than the cutting-edge, three dimensional solar cell."