Title :
Analysis of the conversion efficiencies of β-FeSi2 and BaSi2 solar cells
Author :
Jung-Sheng Huang ; Kuan-Wei Lee ; Shang-Ru Li ; Cheng-Lung She ; Raksavas, W.
Author_Institution :
Dept. of Electron. Eng., I-Shou Univ., Kaohsiung, Taiwan
Abstract :
β-FeSi2 and BaSi2 both have large absorption coefficients, thus they are very promising Si-based new material for solar cell applications. In this paper, the dc characteristics of β-FeSi2 and BaSi2 pn junction solar cell are investigated by solving the charge transport equations with optical generation. The distributions of minority carrier densities, the free electron and hole diffusion current densities, and the drift current density in the depletion region are calculated. The conversion efficiencies are obtained from the calculated I-V curves. The calculated conversion efficiency of β-FeSi2 solar cell is about 17% and of BaSi2 solar cell is 14%.
Keywords :
barium compounds; carrier density; current density; iron compounds; p-n heterojunctions; solar cells; BaSi2; FeSi2; absorption coefficients; charge transport equations; conversion efficiencies; dc characteristics; depletion region; drift current density; free electron; hole diffusion; minority carrier densities; optical generation; pn junction; solar cells; Absorption; Charge carrier processes; Current density; Equations; Junctions; Optical reflection; Photovoltaic cells; β-FeSi2; BaSi2; conversion efficiency; solar cell;
Conference_Titel :
Next-Generation Electronics (ISNE), 2013 IEEE International Symposium on
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-4673-3036-7
DOI :
10.1109/ISNE.2013.6512380
