Black silicon: A new light absorber for solar cells and photodetectors
Publication information:
1998. “Black Silicon: A New Light Absorber for Solar Cells and Photodetectors”
Full text
We demonstrate a new light absorber for solar cells and optical detection devices. Micron-sized spikes generated by irradiating a silicon surface with femtosecond laser pulses in SF6 enhance light absorption in silicon to near 100%. We observe an increase of more than 60% in photocurrent compared to a flat silicon surface.