Properties of boron doped amorphous carbon films by carbon palm oil for carbon based solar cell applications

The boron doped amorphous carbon were prepared by in-situ mixing of hydrocarbon palm oil and boron dopant and carrier gas, argon in the chamber by using bias assisted pyrolysis-CVD. The effect of substrate bias on the thickness, electrical and electronic properties of a-C:B film were investigated. The fabricated solar cell with the configuration of Au/p-C:B/n-Si/Au achieved conversion efficiency (r) of 0.453% at applied bias voltage of -20 V. This result showed the successful interstitial doping of boron in the amorphous carbon films deposited by this method and palm oil precursor as confirmed by the fill factor, open circuit voltage, and current density results.