Black silicon

Presentation Date: 

Tuesday, November 29, 2011


Harvard Energy Innovation Showcase, Harvard University (Cambridge, MA)

Presentation Slides: 

Shining intense, ultrashort laser pulses on the surface of a crystalline silicon wafer drastically changes the optical, material and electronic properties of the wafer. The resulting textured surface is highly absorbing and looks black to the eye. The properties of this 'black silicon' make it useful for a wide range of applications including improved solar energy harvesting.