| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light trapping layer for enhancing efficiency of a thin film solar cell. <P>SOLUTION: A light trapping layer has a plurality of substantially flat areas between a plurality of periodically repeating non-pointed depressions with rounded edges. The plurality of substantially flat areas facilitate deposition and growth of a layer of transparent conductive oxide over the light trapping layer. The plurality of periodically repeating non-pointed depressions with rounded edges limit formation of at least one of cracks, voids, and low density areas in semiconductor layers of the thin film solar cell. A period of the non-pointed depressions ranges between 100 nanometers and 1500 nanometers, and a depth of the non-pointed depressions ranges between 50 nanometers and 1200 nanometers. <P>COPYRIGHT: (C)2012,JPO&INPIT |
