Guidelines for the Bandgap Combinations and Absorption Windows for Organic Tandem and Triple-Junction Solar Cells |
| |
Authors: | Ben Minnaert Peter Veelaert |
| |
Affiliation: | Faculty of Applied Engineering Sciences, University College Ghent—Ghent University, Valentin Vaerwyckweg 1, Gent B-9000, Belgium; E-Mail: |
| |
Abstract: | Organic solar cells have narrow absorption windows, compared to the absorption band of inorganic semiconductors. A possible way to capture a wider band of the solar spectrum—and thus increasing the power conversion efficiency—is using more solar cells with different bandgaps in a row, i.e., a multi-junction solar cell. We calculate the ideal material characteristics (bandgap combinations and absorption windows) for an organic tandem and triple-junction solar cell, as well as their acceptable range. In this way, we give guidelines to organic material designers. |
| |
Keywords: | organic solar cells modeling tandem solar cells triple-junction solar cells multi-junction solar cells power conversion efficiency bandgap absorption window |
|
|