It also points out that the higher electricity generating efficiency and lower cost will be obtained if polycrystalline silicon germanium (poly-SiGe) alloys is used as solar energy materials compared with polycrystalline silicon thin film (poly-Si).
英
美
- 文章闡明用多晶鍺硅薄膜作為太陽(yáng)能電池材料，能獲得比多晶硅薄膜太陽(yáng)能電池更高的發(fā)電效率和更低的成本。
