These studies proved that CNTs-on-Si is a potentially suitable configuration for making solar cells.
The DWNT film could also be used as the window layer to replace amorphous carbon film for amorphous silicon solar cell.
Heterostructure made from single-walled CNTs (SWNTs) and
silicon wafer was studied as well.
In this structure,
SWNTs act as metal and silicon wafer serves as a semiconductor and their contact make a Schottky junction