Patent ID: 7741144

Claim:
A method of forming a thin film solar cell, comprising: transferring a substrate into a plasma enhanced chemical vapor deposition chamber; depositing an n-doped amorphous silicon layer over the substrate; providing a plasma treatment to the n-doped amorphous silicon layer disposed on the substrate; depositing an n-doped microcrystalline silicon layer over the n-doped amorphous silicon layer; removing the substrate from the chamber; and forming a p-i-n junction over the n-doped microcrystalline silicon layer, wherein forming the p-i-n junction comprises: depositing a p-doped microcrystalline silicon layer over the n-doped microcrystalline silicon layer; depositing an n-doped amorphous silicon layer over the p-doped silicon layer; and depositing an intrinsic microcrystalline silicon layer between the p-doped microcrystalline silicon layer and the n-doped amorphous silicon layer.