Abstract

SnO2-p/n-Si thin film solar cells were prepared by a vacuum evaporation technique, and SnO2 studied as a transparent antireflection coating with the n-type sili- con wafer to fabricate a thin film. The oxidation of the Si surface takes place simultaneously with the evaporation process. Dark forward and reverse I-V characteristics for the SnO2-p/n-Si structure in the temperature range (25- 300 ◦ C), for a thickness of 5000 u A are measured. The illuminated current-voltage characteristics of a PN junction solar cell have been investigated. The capacitance-voltage (C-V) measurements at room temperature are carried out to show the variation of capacitance with frequency. The rela- tive IQE for the fabricated SnO2-p/n-Si structure with 5000 u A thickness at 300 ◦ C are calculated. The fabricated struc- ture has a maximum response at a wavelength in the range, 0.8-1.05μm.

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