화학공학소재연구정보센터
Molecular Crystals and Liquid Crystals, Vol.386, 73-80, 2002
Photovoltaic characteristics of boron doped amorphous carbon films deposited by pulsed laser deposition using graphite target
This paper reports on the successful deposition of boron (B) doped carbon films (p-C(B)) and fabrication of p-C(B)/n-Si solar cells by pulsed laser deposition (PLD) technique at room temperature using graphite target. The B content in the film was determined by X-ray photoelectron spectroscopy (XPS) to be in the range of 0.2-1.7 atomic percentage. The photovoltaic values of the device, a maximum open circuit voltage, V-oc =250 mV and short circuit current density, J sc =2.113 mA/cm(2) were obtained, when exposed to AM 1.5 illumination (100 mW/cm(2) , 25degreesC). The maximum energy conversion efficiency was found tentatively to be about, eta=0.2%, together with the fill factor, FF=45%. In this paper, the dependence of the B content on electrical and optical properties of the p-C(B) films and the photovoltaic characteristic of the p-C(B)/n-Si structure photovoltaic solar cells are discussed.