Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1534843 | Optics Communications | 2014 | 5 Pages |
Abstract
In this paper, a-Si based thin film solar cells combined with front double dielectric and back triangle metallic gratings are proposed to enhance light harvesting in broadband wave range and wide-angle incident. The grating diffraction effect of front dual dielectric gratings and surface plasmon polaritons (SPPs) induced by back metal gratings promote the total optical absorption. We achieve 93.7% light absorption in TM incident and 91.4% average harvesting (on TE and TM hybrid mode) by the optimized structure in the spectrum range from 300 to 800Â nm, about 20% enhancement. And the short circuit photocurrent density is up to 22.4Â mA/cm2 with 10% increase.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Wei Zhang, Liyong Jiang, Xiangyin Li,