Amorphous carbon Carbon films Chemical vapor deposition Semiconductor doping Amorphous carbon thin films Amorphous silicon Applied bias voltage Boron doped Boron-doped CVD Carbon based materials Chemical vapor depositions (CVD) Complicated structures Deposition conditions Doping temperature Electrical and optical properties Electronic materials Gold deposits Iodine Morphology Optical properties Photovoltaic applications Photovoltaic effects Photovoltaic solar cells Pyrolysis SILICON Semiconductor materials Solar cell Classification: Electronic materials Solar cells Solar power generation