Patent application number | Description | Published |
20100075457 | METHOD OF MANUFACTURING STACKED-LAYERED THIN FILM SOLAR CELL WITH A LIGHT-ABSORBING LAYER HAVING BAND GRADIENT - A method of manufacturing a stacked-layered thin film solar cell with a light-absorbing layer having a band gradient is provided. The stacked-layered thin film solar cell includes a substrate, a back electrode layer, a light-absorbing layer, a buffer layer, a window layer, and a top electrode layer stacked up sequentially. The light-absorbing layer has a band gradient structure and is essentially a group I-III-VI compound, wherein the group III elements at least include indium (In) and aluminum (Al). Moreover, the Al/In ratio in the upper half portion of the light-absorbing layer is greater than that in the lower half portion of the light-absorbing layer, wherein the upper half portion is proximate to a light incident surface. | 03-25-2010 |
20100129953 | STACKED-LAYERED THIN FILM SOLAR CELL AND MANUFACTURING METHOD THEREOF - A stacked-layered thin film solar cell and a manufacturing method thereof are provided. The stacked-layered thin film solar cell includes a front electrode layer, a stacked-layered light-absorbing structure, and a back electrode layer. The stacked-layered light-absorbing structure has a p-i-n-type layered structure and consists essentially of I-III-VI compounds, wherein the group III elements at least include indium (In) and aluminum (Al). The p-type layer of the stacked-layered light-absorbing structure is near the front electrode layer while the n-type layer is near the back electrode layer. The Al/In concentration ratio in the p-type layer is higher than that in the n-type layer. | 05-27-2010 |
20110308606 | SOLAR CELL OF IMPROVED PHOTO-UTILIZATION EFFICIENCY - The present invention relates to a solar cell having a structure of improved photo-utilization efficiency. The solar cell comprises a transparent texture layer, a transparent conductive layer, a photoelectric conversion layer and a back electrode layer and a substrate under the back electrode layer stacked in a sequence from an incident light side. A laser scribing of module process is performed in the transparent conductive layer, the photoelectric conversion layer and the back electrode layer so as to form a laser scribing region and a photoelectric conversion active region where the transparent texture layer is formed of an angular or arc surface shape and has a concave portion opposite to the laser scribing region. The laser scribing region is provided to guide the incident light to concentrate on the photoelectric conversion active region. | 12-22-2011 |