| 초록 |
In view to enhance active surface area and internal scattering of incident light, we have fabricated Cu2ZnSn(SxSe1-x)4 based 3D solar cell, using simple and cost effective physico-chemical techniques. 3D solar cell structure consists of regularly arranged CZTSSe microrod array on Mo substrate, stacked with CdS, i-ZnO, AZO, Al sequentially. The CZTSSe microrods were prepared with help of photolithography technique. First the CZT precursor layer was deposited on photoresist (PR) pattern by electrodeposition technique, then the inter-rod spacing was coated with a thin CZT layer by sputtering technique after the removal of PR. Further, the CZT precursor layer was sulfo-selenized to obtain 3-D CZTSSe rods structure, which is further applied for the fabrication of solar cell. Fabricated 3D solar cell was characterized by X-ray diffraction, X-ray fluorescence, field-emission scanning electron microscopy, and J-V characteristics; to analyze their structural, compositional, morphological and photovoltaic properties. The analysis reveals the successful fabrication of CZTSSe 3-D solar cell with enhanced carrier collection efficiency. The enhanced active surface area due to 3-D structure and diffuse scattering of light within inter rod spacing synergistically improves the performance of CZTSSe solar cell. |
