Abstract
A silicon prismatic lens, whose shape is inspired by the apposition compound eyes of some dipterans, was investigated to improve the light-harvesting capability of silicon solar cells. The bioinspired compound lens (BCL) has a fractal construction procedure in which the cross-section of the lens is a frustum of a infinitely long circular cylinder at the zeroth-stage, and is decorated with sections of smaller cylinders at higher stages of construction. We found that the light-coupling efficiency of the best performing first-stage BCL cannot be enhanced by higher-order stages and is significantly superior to other kinds of textured surfaces. By coating the lens with a double layer anti-reflection coating further enhancement of efficiency can be obtained. Our strategy can also be adopted for solar cells not made of silicon.
Original language | English (US) |
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Title of host publication | Bioinspiration, Biomimetics, and Bioreplication |
Volume | 7975 |
DOIs | |
State | Published - May 23 2011 |
Event | Bioinspiration, Biomimetics, and Bioreplication - San Diego, CA, United States Duration: Mar 7 2011 → Mar 9 2011 |
Other
Other | Bioinspiration, Biomimetics, and Bioreplication |
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Country/Territory | United States |
City | San Diego, CA |
Period | 3/7/11 → 3/9/11 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering