Abstract
Metal-interconnected multijunction solar cells offer one pathway toward efficiencies in excess of 50%. However, if a three-or four-terminal configuration is used, optical losses from the interfacial grid can be considerable. Here, we examine an alternative that provides an optimal interconnection for two-terminal bonded devices. This 'pillar-array' topology is optimized by minimizing the sum of all power losses, including shadow losses and numerically computed electrical losses. Numerical modeling is used to illustrate the benefit of a pillar-array interfacial metallization for some two-terminal configurations.
Original language | American English |
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Article number | 6407636 |
Pages (from-to) | 868-872 |
Number of pages | 5 |
Journal | IEEE Journal of Photovoltaics |
Volume | 3 |
Issue number | 2 |
DOIs | |
State | Published - 2013 |
NREL Publication Number
- NREL/JA-5200-55334
Keywords
- Bonding processes
- III-V semiconductor materials
- optimization
- photovoltaic cells
- semiconductor device modeling