A VSM(V-Shaped Module)technique is effective for boosting the efficiencies of solar cells,which has been confirmed by several research groups in Europe and America.In this study,a 60%efficiency enhancement due to the ...A VSM(V-Shaped Module)technique is effective for boosting the efficiencies of solar cells,which has been confirmed by several research groups in Europe and America.In this study,a 60%efficiency enhancement due to the VSM technique is obtained for solar cells with the fewest possible defects,which is verified under direct sunlight illumination.The following three mechanisms are proposed to explain the enhancement:(1)infrared photons emitted from the cells due to the law of energy conservation,(2)residual reflection which cannot be eliminated by an antireflection coating,and(3)photons reflected from electrode metal.At least,the reflection from the cells contributes to the easy-to-reproduce VSM enhancement effect.In the VSM,each tilted cell is a second source of incoming energy for the opposite cell.Due to light trapping,the 3D(Three-Dimension)configuration enables the VSM technique to increase efficiencies for all kinds of solar cells.The VSM technique,which has broken new ground in raising the efficiencies of solar cells,has opened new avenues in area-limited solar-energy applications such as concentrator solar cells,sun tracking solar panels,solar-powered vehicles,and even photodetectors etc.展开更多
文摘A VSM(V-Shaped Module)technique is effective for boosting the efficiencies of solar cells,which has been confirmed by several research groups in Europe and America.In this study,a 60%efficiency enhancement due to the VSM technique is obtained for solar cells with the fewest possible defects,which is verified under direct sunlight illumination.The following three mechanisms are proposed to explain the enhancement:(1)infrared photons emitted from the cells due to the law of energy conservation,(2)residual reflection which cannot be eliminated by an antireflection coating,and(3)photons reflected from electrode metal.At least,the reflection from the cells contributes to the easy-to-reproduce VSM enhancement effect.In the VSM,each tilted cell is a second source of incoming energy for the opposite cell.Due to light trapping,the 3D(Three-Dimension)configuration enables the VSM technique to increase efficiencies for all kinds of solar cells.The VSM technique,which has broken new ground in raising the efficiencies of solar cells,has opened new avenues in area-limited solar-energy applications such as concentrator solar cells,sun tracking solar panels,solar-powered vehicles,and even photodetectors etc.
